Exact formulas to describe particle and heat transport in generic noninteracting fermionic systems undergoing continuous monitoring and driven by biased reservoirs show the possibility to achieve measurement-induced power or cooling.
[Phys. Rev. Lett. 132, 136301] Published Wed Mar 27, 2024
]]>Interacting fermionic ladders are versatile platforms to study quantum phases of matter, such as different types of Mott insulators. In particular, there are D-Mott and S-Mott states that hold preformed fermion pairs and become paired-fermion liquids upon doping ( wave and wave, respectively). We…
[Phys. Rev. Lett. 132, 136501] Published Wed Mar 27, 2024
]]>A new protocol shows promise for classifying non-Abelian fractional quantum Hall states–being explored for quantum computation–using experimental shot-noise techniques.
[Phys. Rev. Lett. 132, 136502] Published Wed Mar 27, 2024
]]>The polar Kerr effect and the closely related anomalous charge Hall effect are among the most distinguishing signatures of the superconducting state in , as well as in several other compounds. These effects are often thought to be derived from chiral superconducting pairing, and different mec…
[Phys. Rev. Lett. 132, 136001] Published Tue Mar 26, 2024
]]>Floquet insulators are periodically driven quantum systems that can host novel topological phases as a function of the drive parameters. These new phases exhibit features reminiscent of fermion doubling in discrete-time lattice fermion theories. We make this suggestion concrete by mapping the spectr…
[Phys. Rev. Lett. 132, 136601] Published Tue Mar 26, 2024
]]>We formulate and quantify the spin-orbit torque (SOT) in intrinsic antiferromagnetic topological insulator of a few septuple-layer thick in charge-neutral condition, which exhibits pronounced layer-resolved characteristics and even-odd contrast. Contrary to traditional current-induced torqu…
[Phys. Rev. Lett. 132, 136701] Published Mon Mar 25, 2024
]]>Recent works on electric bubbles (including the experimental demonstration of electric skyrmions) constitute a breakthrough akin to the discovery of magnetic skyrmions some 15 years ago. So far research has focused on obtaining and visualizing these objects, which often appear to be immobile (pinned…
[Phys. Rev. Lett. 132, 136801] Published Mon Mar 25, 2024
]]>Adiabaticity is crucial for our understanding of complex quantum dynamics and thus for advancing fundamental physics and technology, but its impact cannot yet be quantified in complex but common cases where dynamics is only partially adiabatic, several eigenstates are simultaneously populated and tr…
[Phys. Rev. Lett. 132, 126903] Published Fri Mar 22, 2024
]]>The spectroscopic data of hundreds of atoms can now be computed on a single workstation using the new Lanczos method in full-frequency GW calculations.
[Phys. Rev. Lett. 132, 126402] Published Thu Mar 21, 2024
]]>The quantum spin hall (QSH) phase, also known as the 2D topological insulator, is characterized by protected helical edge modes arising from time reversal symmetry. While initially proposed as band insulators, this phase can also manifest in strongly correlated systems where conventional band theory…
[Phys. Rev. Lett. 132, 126504] Published Thu Mar 21, 2024
]]>We study a multiterminal Josephson junction based on an interacting quantum dot coupled to superconducting BCS leads. Using an Anderson type model of a local level with an arbitrary on-site Coulomb repulsion, we uncover its surprising equivalence with an effective two-terminal junction with symmet…
[Phys. Rev. Lett. 132, 126505] Published Thu Mar 21, 2024
]]>We introduce feedback-measurement technologies to achieve flexible control of Weyl points and conduct the first experimental demonstration of Weyl type I-II transition in mechanical systems. We demonstrate that non-Hermiticity can expand the Fermi arc surface states from connecting Weyl points to We…
[Phys. Rev. Lett. 132, 126602] Published Thu Mar 21, 2024
]]>The propagation characteristics of fermionic and bosonic quasiparticles determine the fundamental transport properties of solids and are of great technological relevance for designing logic devices. In particular, nonreciprocity, which describes that a quasiparticle flows preferably along a certain …
[Phys. Rev. Lett. 132, 126702] Published Thu Mar 21, 2024
]]>Two-dimensional moiré materials have emerged as the most versatile platform for realizing quantum phases of electrons. Here, we explore the stability origins of correlated states in moiré superlattices. We find that ultrafast electronic excitation leads to partial melting of the Mott states…
[Phys. Rev. Lett. 132, 126501] Published Wed Mar 20, 2024
]]>is an antiferromagnetic mixed valence cuprate where trilayers of edge-sharing Cu(II)O () are sandwiched in between planes of Cu(I) () ions, with Li stochastically substituting Cu(II). Angle-resolved photoemission spectroscopy (ARPES) and density functional theory reveal two insulating…
[Phys. Rev. Lett. 132, 126502] Published Wed Mar 20, 2024
]]>Beyond 14 GPa of pressure, bilayered was recently found to develop strong superconductivity above the liquid nitrogen boiling temperature. An immediate essential question is the pressure-induced qualitative change of electronic structure that enables the exciting high-temperature supercondu…
[Phys. Rev. Lett. 132, 126503] Published Wed Mar 20, 2024
]]>Despite appealing high-symmetry properties that enable strong spatial confinement and ultrahigh-, optical whispering-gallery modes of spherical and circular resonators have been absent from the field of quantum-well exciton polaritons. Here we observe whispering-gallery exciton polaritons in a gall…
[Phys. Rev. Lett. 132, 126901] Published Wed Mar 20, 2024
]]>Nonradiative exciton relaxation processes are critical for energy transduction and transport in optoelectronic materials, but how these processes are connected to the underlying crystal structure and the associated electron, exciton, and phonon band structures, as well as the interactions of all the…
[Phys. Rev. Lett. 132, 126902] Published Wed Mar 20, 2024
]]>Although topological phenomena attract growing interest not only in linear systems but also in nonlinear systems, the bulk-edge correspondence under the nonlinearity of eigenvalues has not been established so far. We address this issue by introducing auxiliary eigenvalues. We reveal that the topolog…
[Phys. Rev. Lett. 132, 126601] Published Tue Mar 19, 2024
]]>Scientists have devised a promising method for generating and manipulating exotic spin patterns called magnetic vortex rings, which could have applications in energy-efficient data storage and processing.
[Phys. Rev. Lett. 132, 126701] Published Tue Mar 19, 2024
]]>The competition between on-site electronic correlation and local crystal field stands out as a captivating topic in research. However, its physical ramifications often get overshadowed by influences of strong periodic potential and orbital hybridization. The present study reveals this competition ma…
[Phys. Rev. Lett. 132, 126201] Published Mon Mar 18, 2024
]]>A droplet depositing on a solid substrate leads to the wetting phenomenon, such as dew on plant leaves. On an ideally smooth substrate, the classic Young’s law has been employed to describe the wetting effect. However, no real substrate is ideally smooth at the microscale. Given this fact, we introd…
[Phys. Rev. Lett. 132, 126202] Published Mon Mar 18, 2024
]]>A super-moiré lattice in monolayer graphene generates flat bands, providing a viable platform to engineer its correlated states.
[Phys. Rev. Lett. 132, 126401] Published Mon Mar 18, 2024
]]>Recent theoretical and experimental research suggests that -TaN is a semimetal with high thermal conductivity (), primarily due to the contribution of phonons (). By using first-principles calculations, we show a nonmonotonic pressure dependence of the of -TaN. first increases until it r…
[Phys. Rev. Lett. 132, 116301] Published Fri Mar 15, 2024
]]>Electrical control of magnetism has been a major technological pursuit of the spintronics community, owing to its far-reaching implications for data storage and transmission. Here, we propose and analyze a new mechanism for electrical switching of isospin, using chiral-stacked graphene multilayers, …
[Phys. Rev. Lett. 132, 116504] Published Fri Mar 15, 2024
]]>Chern insulators, and more broadly, topological insulators, present an obstruction to the construction of exponentially localized electronic Wannier functions. This implies a fundamental difficulty in determining whether such insulators exhibit electric polarization. Here, we show that these insulat…
[Phys. Rev. Lett. 132, 116602] Published Fri Mar 15, 2024
]]>Intriguing topological polar structures in oxide nanofilms have drawn growing attention owing to their immense potential applications in nanoscale electronic devices. Here, we report a novel route to mechanically manipulate polar structures via flexoelectricity in wrinkled thin films. Our results pr…
[Phys. Rev. Lett. 132, 116201] Published Thu Mar 14, 2024
]]>Recently, the intriguing phenomenon of emergent inductance has been theoretically proposed and experimentally observed in nanoscale spiral spin systems subjected to oscillating currents. Building upon these recent developments, we put forward the concept of emergent inductance in strongly correlated…
[Phys. Rev. Lett. 132, 116501] Published Thu Mar 14, 2024
]]>A combined Raman scattering and theoretical study of spin-orbit excitations in SrRhO reveals unusual but well-defined excitations around 230 meV that are excitonic transitions between the spin-orbit multiplets of the Rh ions, excitations analogous to those recently observed in the Mott insulators SrIrO and RuCl.
[Phys. Rev. Lett. 132, 116502] Published Thu Mar 14, 2024
]]>Exotic quantum phases and phase transition in the strongly interacting Dirac systems have attracted tremendous interests. On the other hand, non-Hermitian physics, usually associated with dissipation arising from the coupling to environment, emerges as a frontier of modern physics in recent years. I…
[Phys. Rev. Lett. 132, 116503] Published Thu Mar 14, 2024
]]>We investigate how altering the interface geometry from a zigzag to a glide plane interface between two topologically distinct valley Hall emulating photonic crystals (VPC), profoundly affects edge states. We experimentally observe a transition from gapless to gapped edge states, accompanied by the …
[Phys. Rev. Lett. 132, 116901] Published Thu Mar 14, 2024
]]>Chemical short-range order is believed to be a key contributor to the exceptional properties of multicomponent alloys. However, its direct validation and confirmation has been highly elusive in most compounds. Recent studies for equiatomic NiCoCr alloys have shown that thermal treatments (i.e., anne…
[Phys. Rev. Lett. 132, 116101] Published Tue Mar 12, 2024
]]>Ultrathin bismuth exhibits rich physics including strong spin-orbit coupling, ferroelectricity, nontrivial topology, and light-induced structural dynamics. We use ab initio calculations to show that light can induce structural transitions to four transient phases in bismuth monolayers. These light-i…
[Phys. Rev. Lett. 132, 116601] Published Tue Mar 12, 2024
]]>Cavity magnonics is an emerging research area focusing on the coupling between magnons and photons. Despite its great potential for coherent information processing, it has been long restricted by the narrow interaction bandwidth. In this Letter, we theoretically propose and experimentally demonstrat…
[Phys. Rev. Lett. 132, 116701] Published Tue Mar 12, 2024
]]>The nonlinear Hall effect has attracted much attention due to the famous, widely adopted interpretation in terms of the Berry curvature dipole in momentum space. Using ab initio Boltzmann transport equations, we find a 60% enhancement in the nonlinear Hall effect of -doped GeTe and its noticeable f…
[Phys. Rev. Lett. 132, 106402] Published Fri Mar 08, 2024
]]>We study a mechanism by which nuclear hyperpolarization due to the polarization transfer from a microwave-pulse-controlled electron spin is suppressed. From analytical and numerical calculations of the unitary dynamics of multiple nuclear spins, we uncover that, combined with the formation of the da…
[Phys. Rev. Lett. 132, 106904] Published Fri Mar 08, 2024
]]>The Rashba parameter is usually assumed to scale linearly with the amplitude of polar displacements by construction of the spin-orbit interaction. On the basis of first-principles simulations, ferroelectric phases of reached under epitaxial compressive strain are characterized by (i) large…
[Phys. Rev. Lett. 132, 106401] Published Thu Mar 07, 2024
]]>We theoretically propose that the van der Waals layered ternary transition metal chalcogenide (, Mo; , Se) is a new family of quantum anomalous Hall insulators with sizable bulk gap and Chern number . The large topological gap originates from the deep band inversion between spin-up b…
[Phys. Rev. Lett. 132, 106602] Published Thu Mar 07, 2024
]]>We develop a theory for heat transport via electromagnetic waves inside media, and use it to derive a spatially nonlocal thermal conductivity tensor, in terms of the electromagnetic Green’s function and potential, for any given system. While typically negligible for optically dense bulk media, the e…
[Phys. Rev. Lett. 132, 106903] Published Thu Mar 07, 2024
]]>A proposal of the existence of an Anomalous phase ( phase) [Das et al., Phys. Rev. Lett. 131, 056202 (2023)] at the experimental range of moderate Landau-level-mixing strength has recently been made for the state. We here report that the gapped phase is generic to the sequence of spin-polariz…
[Phys. Rev. Lett. 132, 106501] Published Wed Mar 06, 2024
]]>Computing thermal transport from first-principles in is complicated due to the challenges associated with Mott physics. Here, we use irreducible derivative approaches to compute the cubic and quartic phonon interactions in from first principles, and we perform enhanced thermal transport comp…
[Phys. Rev. Lett. 132, 106502] Published Wed Mar 06, 2024
]]>Researchers have observed a new class of nonlinear Hall effect that can be understood through a geometric description of the electronic wave function.
[Phys. Rev. Lett. 132, 106601] Published Wed Mar 06, 2024
]]>Despite significant theoretical efforts devoted to studying the interaction between quantized light modes and matter, the so-called ultrastrong coupling regime still presents significant challenges for theoretical treatments and prevents the use of many common approximations. Here we demonstrate an …
[Phys. Rev. Lett. 132, 106902] Published Wed Mar 06, 2024
]]>A multiple pump-terahertz probe experiment enables the clear distinction between elastic and inelastic scattering of excitons with a free electron-hole plasma in (Ga,In)As multiquantum wells. Low plasma energies dictate the prevalence of elastic scattering by inhibiting inelastic processes due to th…
[Phys. Rev. Lett. 132, 106901] Published Tue Mar 05, 2024
]]>We investigate full quantum mechanical evolution of two electrons nonlinearly coupled to quantum phonons and simulate the dynamical response of the system subject to a short spatially uniform optical pulse that couples to dipole-active vibrational modes. Nonlinear electron-phonon coupling can either…
[Phys. Rev. Lett. 132, 106001] Published Mon Mar 04, 2024
]]>Inspired by a recent experiment showing that exhibits high superconductivity under high pressure, we theoretically revisit the possibility of superconductivity in this material. We find that superconductivity can take place, which is somewhat similar to that of the bilayer Hubbard model …
[Phys. Rev. Lett. 132, 106002] Published Mon Mar 04, 2024
]]>We show that the conservation of the valley density in multivalley insulators is broken in an unexpected way by the electric field that drives the valley Hall effect. This implies that time-reversal-invariant fully gapped insulators, in which no bulk or edge state crosses the Fermi level, can suppor…
[Phys. Rev. Lett. 132, 106301] Published Mon Mar 04, 2024
]]>An experimental study of sliding electrical graphite contacts demonstrates simultaneous superlubricity and extremely high electrical conductivity.
[Phys. Rev. Lett. 132, 096201] Published Fri Mar 01, 2024
]]>Low-disorder two-dimensional electron systems in the presence of a strong, perpendicular magnetic field terminate at very small Landau level filling factors in a Wigner crystal (WC), where the electrons form an ordered array to minimize the Coulomb repulsion. The nature of this exotic, many-body, qu…
[Phys. Rev. Lett. 132, 096502] Published Fri Mar 01, 2024
]]>We explain the appearance of magic angles and fractional Chern insulators in twisted K-valley homobilayer transition metal dichalcogenides by mapping their continuum model to a Landau level problem. Our approach relies on an adiabatic approximation for the quantum mechanics of valence band holes in …
[Phys. Rev. Lett. 132, 096602] Published Fri Mar 01, 2024
]]>We present a nonlinear field theory of a three-sublattice hexagonal antiferromagnet. The order parameter is the spin frame, an orthogonal triplet of vectors related to sublattice magnetizations and spin chirality. The exchange energy, quadratic in spin-frame gradients, has three coupling constants, …
[Phys. Rev. Lett. 132, 096703] Published Fri Mar 01, 2024
]]>Kagome metals (, Rb, or Cs) exhibit intriguing charge density wave (CDW) instabilities, which interplay with superconductivity and band topology. However, despite firm observations, the atomistic origins of the CDW phases, as well as hidden instabilities, remain elusive. Here, we adopt our…
[Phys. Rev. Lett. 132, 096101] Published Thu Feb 29, 2024
]]>Building large-scale superconducting quantum circuits will require miniaturization and integration of supporting devices including microwave circulators, which are currently bulky, stand-alone components. Here, we report the measurement of microwave scattering from a ring of Josephson junctions, wit…
[Phys. Rev. Lett. 132, 097001] Published Thu Feb 29, 2024
]]>We report the existence of dissipationless currents in bilayer superconductors above the critical temperature , assuming that the superconducting phase transition is dominated by phase fluctuations. Using a semiclassical U(1) lattice gauge theory, we show that thermal fluctuations cause a transiti…
[Phys. Rev. Lett. 132, 096002] Published Wed Feb 28, 2024
]]>The valley Hall effect arises from valley-contrasting Berry curvature and requires inversion symmetry breaking. Here, we propose a nonlinear mechanism to generate a valley Hall current in systems with both inversion and time-reversal symmetry, where the linear and second-order charge Hall currents v…
[Phys. Rev. Lett. 132, 096302] Published Wed Feb 28, 2024
]]>A framework leveraging deep learning and automatic differentiation circumvents the computational bottleneck associated with density functional perturbation theory calculations.
[Phys. Rev. Lett. 132, 096401] Published Wed Feb 28, 2024
]]>In this study, we performed high-magnetic-field magnetization, dielectric, and ultrasound measurements on an organic salt showing a ferroelectric spin-Peierls (FSP) state, which is in close proximity to a quantum critical point. In contrast to the sparsely distributed gaslike spin solitons typically…
[Phys. Rev. Lett. 132, 096601] Published Wed Feb 28, 2024
]]>Spin-phonon coupling enables the mutual manipulation of phonon and spin degrees of freedom in solids. In this study, we reveal the inherent nonlinearity within this coupling. Using a paramagnet as an illustration, we demonstrate the nonlinearity by unveiling spontaneous symmetry breaking under a per…
[Phys. Rev. Lett. 132, 096702] Published Wed Feb 28, 2024
]]>We suggest a theoretical description of the photogalvanic phenomena arising in superconducting condensates in the field of electromagnetic wave. The ac Hall effect and photon drag are shown to originate from the second-order nonlinear response of superconducting carriers caused by the suppression of…
[Phys. Rev. Lett. 132, 096001] Published Tue Feb 27, 2024
]]>This Letter presents a nonlocal study on the electric-field-tunable edge transport in -BN-encapsulated dual-gated Bernal-stacked () trilayer graphene across various displacement fields () and temperatures (). Our measurements revealed that the nonlocal resistance () surpassed the expected c…
[Phys. Rev. Lett. 132, 096301] Published Tue Feb 27, 2024
]]>We unveil an exotic phenomenon arising from the intricate interplay between non-Hermiticity and many-body physics, namely, an occupation-dependent particle separation for hardcore bosons in a one-dimensional lattice driven by unidirectional non-Hermitian pumping. Taking hardcore bosons as an example…
[Phys. Rev. Lett. 132, 096501] Published Tue Feb 27, 2024
]]>The search for new materials for energy-efficient electronic devices has gained unprecedented importance. Among the various classes of magnetic materials driving this search are antiferromagnets, magnetoelectrics, and systems with topological spin excitations. is a material that belongs to a…
[Phys. Rev. Lett. 132, 096701] Published Mon Feb 26, 2024
]]>We study noise amplification by asymmetric dyads in freely expanding non-Hermitian optical systems. We show that modifications of the pumping strengths can counteract bias from natural imperfections of the system’s hardware while couplings between dyads lead to systems with nonuniform statistical di…
[Phys. Rev. Lett. 132, 096901] Published Mon Feb 26, 2024
]]>Ultrafine splittings are found in the optical absorption spectra of boron-doped diamond measured with high resolution. An analytical model of an exciton complex is developed, which permits assigning all absorption lines and sizing the interactions among the constituent charges and crystal field. We …
[Phys. Rev. Lett. 132, 096902] Published Mon Feb 26, 2024
]]>Using a quantum inverse scattering framework, it is shown that the non-Hermitian one-dimensional Bose-Hubbard model is integrable.
[Phys. Rev. Lett. 132, 086502] Published Fri Feb 23, 2024
]]>The use of finite entanglement scaling with matrix product states (MPS) has become a crucial tool for studying one-dimensional critical lattice theories, especially those with emergent conformal symmetry. We argue that finite entanglement introduces a relevant deformation in the critical theory. As …
[Phys. Rev. Lett. 132, 086503] Published Fri Feb 23, 2024
]]>Driven by the expected contribution of two-dimensional multiferroic systems with strong magnetoelectric coupling to the development of multifunctional nanodevices, here we propose, by means of first-principles calculations, vanadium-halide monolayers as a new class of spin-chirality-driven van der W…
[Phys. Rev. Lett. 132, 086802] Published Fri Feb 23, 2024
]]>Electron thermal diffuse scattering is shown to be sensitive to subtle changes in atomic vibrations and shows promise in assessing lattice dynamics at nanometer resolution. Here, we demonstrate that machine-learned interatomic potentials (MLIPs) and path-integral molecular dynamics can accurately ca…
[Phys. Rev. Lett. 132, 086301] Published Thu Feb 22, 2024
]]>Chiral anomaly bulk states (CABSs) can be realized by choosing appropriate boundary conditions in a finite-size waveguide composed of two-dimensional Dirac semimetals, which have unidirectional and robust transport similar to that of valley edge states. CABSs use almost all available guiding space, …
[Phys. Rev. Lett. 132, 086302] Published Thu Feb 22, 2024
]]>The discovery of the Hat, an aperiodic monotile, has revealed novel mathematical aspects of aperiodic tilings. However, the physics of particles propagating in such a setting remains unexplored. In this work we study spectral and transport properties of a tight-binding model defined on the Hat. We f…
[Phys. Rev. Lett. 132, 086402] Published Thu Feb 22, 2024
]]>In this work we investigate the ground state of a momentum-confined interacting 2D electron gas, a momentum-space analog of an infinite quantum well. The study is performed by combining analytical results with a numerical exact diagonalization procedure. We find a ferromagnetic ground state near a p…
[Phys. Rev. Lett. 132, 086501] Published Thu Feb 22, 2024
]]>Since the discovery of antiferromagnetism, metallic oxide has exhibited numerous intriguing spintronics properties such as the anomalous Hall effect and anisotropic spin splitting effect. However, the microscopic origin of its antiferromagnetism remains unclear. By investigating the spin splitt…
[Phys. Rev. Lett. 132, 086701] Published Wed Feb 21, 2024
]]>Polar topological structures such as skyrmions and merons have become an emerging research field due to their rich functionalities and promising applications in information storage. Up to now, the obtained polar topological structures are restricted to a few limited ferroelectrics with complex heter…
[Phys. Rev. Lett. 132, 086801] Published Wed Feb 21, 2024
]]>The exploration of solid-solid phase transition suffers from the uncertainty of how atoms in two crystal structures match. We devised a theoretical framework to describe and classify crystal-structure matches (CSM). Such description fully exploits the translational and rotational symmetries and is i…
[Phys. Rev. Lett. 132, 086101] Published Tue Feb 20, 2024
]]>We present an approach for calculations of quasiparticle energies with quasiquadratic scaling by approximating high-energy contributions to the Green’s function in its Lehmann representation with effective stochastic vectors. The method is easy to implement without altering the code, converges…
[Phys. Rev. Lett. 132, 086401] Published Tue Feb 20, 2024
]]>The engineering of structural deformations in light-sensitive semiconductors can boost the efficiency of solar cells.
[Phys. Rev. Lett. 132, 086902] Published Tue Feb 20, 2024
]]>Exciton transfers are ubiquitous and extremely important processes, but often poorly understood. A recent example is the triplet exciton transfer in tetracene sensitized silicon solar cells exploited for harvesting high-energy photons. The present ab initio molecular dynamics calculations for tetrac…
[Phys. Rev. Lett. 132, 076201] Published Fri Feb 16, 2024
]]>We propose a concept of quantum dot based light emitting diode that produces circularly polarized light without magnetic contacts due to the hyperfine interaction at the crossing of the exciton levels in a weak magnetic field. The electroluminescence circular polarization degree can reach 100%. The …
[Phys. Rev. Lett. 132, 076202] Published Fri Feb 16, 2024
]]>The Kubo formula is a cornerstone in our understanding of near-equilibrium transport phenomena. While conceptually elegant, the application of Kubo’s linear-response theory to interesting problems is hindered by the need for algorithms that are accurate and scalable to large lattice sizes beyond one…
[Phys. Rev. Lett. 132, 076302] Published Fri Feb 16, 2024
]]>We derive a widely applicable first-principles approach for determining two-body, static effective interactions for low-energy Hamiltonians with quantitative accuracy. The algebraic construction rigorously conserves all instantaneous two-point correlation functions in a chosen model space at the lev…
[Phys. Rev. Lett. 132, 076401] Published Fri Feb 16, 2024
]]>Researchers have demonstrated that magnetic spin waves called magnons can be controlled by voltage and thus could operate more efficiently as information carriers in future devices.
[Phys. Rev. Lett. 132, 076701] Published Fri Feb 16, 2024
]]>Laser modulation spectroscopy on a MoSe/WS heterostructure shows an intricate interplay of both intra- and interlayer moiré excitons and allows to determine unambiguously the nature of the observed optical resonances.
[Phys. Rev. Lett. 132, 076902] Published Fri Feb 16, 2024
]]>We report pump-probe measurements of a hydrogen molecule () in the tunnel junction of a scanning tunneling microscope coupled to ultrashort terahertz (THz) pulses. The coherent oscillation of the THz-induced dc tunneling current at a frequency of fingerprints the absorption by as a tw…
[Phys. Rev. Lett. 132, 076903] Published Fri Feb 16, 2024
]]>Shot noise measurements in Nb-based superconducting tunnel junctions indicate that transparency channels obscure pairing in noise measurements, a common roadblock in measurements in such junctions.
[Phys. Rev. Lett. 132, 076001] Published Thu Feb 15, 2024
]]>Transition metal dichalcogenide superlattices provide an exciting new platform for exploring and understanding a variety of phases of matter. The moiré continuum Hamiltonian, of two-dimensional jellium in a modulating potential, provides a fundamental model for such systems. Accurate computations wi…
[Phys. Rev. Lett. 132, 076503] Published Thu Feb 15, 2024
]]>We report on the specific heat studies performed on a new generation of single crystals. Superior quality of the samples and dedicated experimental protocol allowed us to observe an antiferromagneticlike behavior in the normal state and to detect the first-order phase transition of magnetic…
[Phys. Rev. Lett. 132, 076504] Published Thu Feb 15, 2024
]]>Arrays of Rydberg atoms have appeared as a remarkably rich playground to study quantum phase transitions in one dimension. One of the biggest puzzles that was brought forward in this context are chiral phase transitions out of density waves. Theoretically predicted chiral transition out of period-fo…
[Phys. Rev. Lett. 132, 076505] Published Thu Feb 15, 2024
]]>Orbital current has emerged over the past years as one of the key novel concepts in magnetotransport. Here, we demonstrate that laser pulses can be used to generate large and robust nonrelativistic orbital currents in systems where the inversion symmetry is broken by the orbital Rashba effect. By re…
[Phys. Rev. Lett. 132, 076901] Published Thu Feb 15, 2024
]]>The entanglement entropy of two-dimensional interacting fermions can be simulated with quantum Monte Carlo techniques.
[Phys. Rev. Lett. 132, 076502] Published Wed Feb 14, 2024
]]>Subtleties in edge-structure reconstruction may critically affect Aharonov-Bohm oscillations in a quantum Hall interferometer.
[Phys. Rev. Lett. 132, 076301] Published Mon Feb 12, 2024
]]>Deforming the quantum phase with a nondestructive current flowing through the sample shows that the system becomes more incompressible when hosting a current.
[Phys. Rev. Lett. 132, 076501] Published Mon Feb 12, 2024
]]>Resonant ultrasound spectroscopy (RUS) is a powerful technique for measuring the full elastic tensor of a given material in a single experiment. Previously, this technique was practically limited to regularly shaped samples such as rectangular parallelepipeds, spheres, and cylinders [W. M. Visscher …
[Phys. Rev. Lett. 132, 066003] Published Fri Feb 09, 2024
]]>We have investigated the orbital excitations in (CCO), (NCO), and (LCO) using high-resolution resonant inelastic x-ray scattering. In LCO they behave as well-localized excitations, similarly to several other cuprates. On the contrary, in CCO and NCO the orbital clearly …
[Phys. Rev. Lett. 132, 066004] Published Fri Feb 09, 2024
]]>A comprehensive theoretical study of octupolar quantum spin ice shows that the dynamical spin structure factor is characterized by a broad continuum with three distinctive peaks which could be confirmed with inelastic neutron scattering measurements.
[Phys. Rev. Lett. 132, 066502] Published Fri Feb 09, 2024
]]>We experimentally and theoretically investigate thermal domain evolution in near-transition KTN:Li. Results allow us to establish how polarization supercrystals form, a hidden 3D topological phase composed of hypervortex defects. These are the result of six converging polarization vortices, each ass…
[Phys. Rev. Lett. 132, 066603] Published Fri Feb 09, 2024
]]>We propose an intrinsic mechanism to understand the even-odd effect, namely, opposite signs of anomalous Hall resistance and different shapes of hysteresis loops for even and odd septuple layers (SLs), of MBE-grown thin films with electron doping. The nonzero hysteresis loops in the anomalo…
[Phys. Rev. Lett. 132, 066604] Published Fri Feb 09, 2024
]]>We have investigated light-matter hybrid excitations in a quantum dot (QD) THz resonator coupled system. We fabricate a gate-defined QD near a THz split-ring resonator (SRR) by using a two-dimensional electron system. By illuminating the system with THz radiation, the QD shows a current …
[Phys. Rev. Lett. 132, 066901] Published Fri Feb 09, 2024
]]>The square-lattice Hubbard and closely related models are considered as basic paradigms for understanding strong correlation effects and unconventional superconductivity (SC). Recent large-scale density matrix renormalization group simulations on the extended model have identified -wave SC …
[Phys. Rev. Lett. 132, 066002] Published Thu Feb 08, 2024
]]>Observation of the stacking fault in the charge-density-wave phase of the kagome superconductor CsVSb offers structural insights to comprehend the entanglement between superconductivity and charge density waves in that system.
[Phys. Rev. Lett. 132, 066501] Published Thu Feb 08, 2024
]]>The sound waves in a fabricated material exhibit topological features in one, two, and three dimensions—demonstrating an acoustic version of a higher-order nodal-line semimetal.
[Phys. Rev. Lett. 132, 066601] Published Thu Feb 08, 2024
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