http://prb.aps.org/ Accepted Papers for Physical Review B hourly 1 2012-02-09T21:06:24-05:00 rss@aps.org assocpub@aps.org 2012-02-09T21:06:24-05:00 en Copyright © 2012 the American Physical Society. Personal use only, all commercial or other reuse prohibited Copyright © 2012 the American Physical Society assocpub@aps.org http://prb.aps.org/accepted/B/85074O7aA3b11b17e9aa588349af39b6988ed9773 We consider the structure and dynamics of 2D fluxons created by a magnetic field in a type-II superconductor film with critical temperature T1 in the presence of nano - stripes of material with a higher critical temperature T2. The width of the stripes is of the order of the coherence length x. Such... Extended object tunneling: Current-carrying states of Abrikosov vortices in a superconductor with artificial nanobarriers 2012-02-09T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/85074O7aA3b11b17e9aa588349af39b6988ed9773 Superfluidity and superconductivity Superfluidity and superconductivity http://prb.aps.org/accepted/B/6d073O91U311c31208680bc04139aad92b4535124 Gapless spectrum of graphene allows easy spatial separation of electrons and holes with an external in-plane electric field. Guided collective plasmon modes can propagate along the separation line, with the amplitude decaying with the distance to it. Their spectrum and direction of propagation can b... One-dimensional plasmons confined in bilayer graphene $p$-$n$ junctions 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/6d073O91U311c31208680bc04139aad92b4535124 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://prb.aps.org/accepted/B/49073OcbW461ff1d08494346e016e7f7af00f225b The interplay between the superconducting gap and normal-state pseudogap in cuprate superconductors is studied based on the kinetic energy driven superconducting mechanism. It is shown that the interaction between charge carriers and spins directly from the kinetic energy by exchanging spin excitati... Two gaps with one energy scale in cuprate superconductors 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/49073OcbW461ff1d08494346e016e7f7af00f225b Superfluidity and superconductivity Superfluidity and superconductivity http://prb.aps.org/accepted/B/7507bO94Y2e1bf1076fb5dc9508dee3d57ae3a006 Combining first-principles density functional theory simulations with IR and Raman experiments, we determine the frequency shift of vibrational modes of CO2 when physi-adsorbed in the iso-structural metal organic framework materials Mg-MOF74 and Zn-MOF74. Surprisingly, we find that the resulting cha... Analyzing the frequency shift of physiadsorbed CO$_2$ in metal organic framework materials 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/7507bO94Y2e1bf1076fb5dc9508dee3d57ae3a006 Dynamics, dynamical systems, lattice effects Dynamics, dynamical systems, lattice effects http://prb.aps.org/accepted/B/7007fOaeXb3E401321308c8798bbdc15726b4d33f Within the linear flavor-wave theory, we show that, caused by quantum order-by-disorder mechanism, the spin-1 bilinear-biquadratic Heisenberg model defined on a honeycomb lattice can spontaneously develop a columnar dimer order with a non-bipartite structure. The low-lying excitations above this nov... Spontaneous dimerization in the spin-1 bilinear-biquadratic Heisenberg model on a honeycomb lattice 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/7007fOaeXb3E401321308c8798bbdc15726b4d33f Magnetism Magnetism http://prb.aps.org/accepted/B/d9076Ya1U2d1f63e541c9dd9b97b91f6e0cc67d4a We have studied one of the most promising lithium-ion conductors, the garnet-type cubic Li oxides of various Li concentrations. The ab-initio calculations performed on these materials revealed two distinct mechanisms of Li-ion transport, with very different energy barriers and strong dependence on L... Mechanisms of Li$^+$ transport in garnet-type cubic Li$_{3+x}$La$_{3}$M$_{2}$O$_{12}$ ($M$=Te, Nb, Zr) 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/d9076Ya1U2d1f63e541c9dd9b97b91f6e0cc67d4a Dynamics, dynamical systems, lattice effects Dynamics, dynamical systems, lattice effects http://prb.aps.org/accepted/B/d907cO35Yd3Ec216e19c619949c2a3ec846ef812b A systematic 59Co NMR study has been carried out at 4.2 K in a series of quaternary Co2FeAl1-xSix polycrystalline bulk Heusler alloys (x=0, 0.3, 0.5, 0.7, 1). It was shown that the effect of Si substitution consists in a significant modification of 59Co hyperfine field and that this modification is ... $^{59}$Co NMR experiment as a probe of electron doping in Co$_2$FeAl$_{1-x}$Si$_{x}$ Heusler alloys 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/d907cO35Yd3Ec216e19c619949c2a3ec846ef812b Magnetism Magnetism http://prb.aps.org/accepted/B/1c07bY51T271a132753b1438dd78a9df461cacdad We develop a general numerical method to calculate the non-equilibrium radiative heat transfer between a plate and compact objects of arbitrary shape, making the first accurate theoretical predictions for the total heat transfer and the spatial heat flux profile for three-dimensional compact objects... Modeling near-field radiative heat transfer from sharp objects using a general three-dimensional numerical scattering technique 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/1c07bY51T271a132753b1438dd78a9df461cacdad Electronic structure and strongly correlated systems Electronic structure and strongly correlated systems http://prb.aps.org/accepted/B/3b071Of0Y7715a10d4938c201d52384ff250c2090 We study the zero temperature superfluid-insulator transition for a two-dimensional model of interacting, lattice bosons in the presence of quenched disorder and particle-hole symmetry. We follow the approach of a recent series of papers by Altman, Kafri, Polkovnikov, and Refael, in which the strong... Mott glass to superfluid transition for random bosons in two dimensions 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/3b071Of0Y7715a10d4938c201d52384ff250c2090 Inhomogeneous, disordered, and partially ordered systems Inhomogeneous, disordered, and partially ordered systems http://prb.aps.org/accepted/B/3e071O25Z4a1621ad5f48733fa644ace04ccd5d1d We present a theory of electronic properties of gated triangular graphene quantum dots with zigzag edges as a function of size and carrier density. We focus on electronic correlations, spin and geometrical effects using a combination of atomistic tight-binding, Hartree-Fock and configuration interac... Electronic properties of gated triangular graphene quantum dots: Magnetism, correlations, and geometrical effects 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/3e071O25Z4a1621ad5f48733fa644ace04ccd5d1d Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://prb.aps.org/accepted/B/59073Of4Y411f41585736d626cfa94e7e7bc04186 We develop an analytical method for the processing of electron spin resonance (ESR) spectra. The goal is to obtain the distributions of trapped carriers over both their degree of localization and their binding energy in semiconductor crystals or films composed of regularly aligned organic molecules ... Distribution of localized states from fine analysis of electron spin resonance spectra of organic semiconductors: Physical meaning and methodology 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/59073Of4Y411f41585736d626cfa94e7e7bc04186 Semiconductors I: bulk Semiconductors I: bulk http://prb.aps.org/accepted/B/cc074OecYf61b51bd5561af6563916f3c0cd75185 The dispersion relations for plasmons in intrinsic and extrinsic semimetallic armchair graphene nanoribbons (acGNR) are calculated in the random phase approximation using the orthogonal pz-orbital tight binding method. Our model predicts new plasmons for acGNR of odd atomic widths N=5,11,17, Our mod... Plasmon dispersion in semimetallic armchair graphene nanoribbons 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/cc074OecYf61b51bd5561af6563916f3c0cd75185 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://prb.aps.org/accepted/B/2707eOb8Z27W8916417a40348f4618e10996ea425 Electron spin resonance (ESR) measurements have been performed on a series of quasi-one-dimensional iodo-bridged diplatinum complexes K2[C3H5R(NH3)2][Pt2(pop)4I].4H2O (pop = P2H2O5 2-; R = H, CH3, or Cl), where dehydration/rehydration of the crystalline water switches the electronic state reversibly... Electron spin resonance observation of dehydration-induced spin excitations in quasi-one-dimensional iodo-bridged diplatinum complexes 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/2707eOb8Z27W8916417a40348f4618e10996ea425 Electronic structure and strongly correlated systems Electronic structure and strongly correlated systems http://prb.aps.org/accepted/B/7d079O01Zd410816c4ff75d1e33a2f86c4709ccce We study the evolution of the two terminal conductance plateaus with magnetic field for armchair graphene nanoribbons (GNR) and nanoconstrictions (GNC). For GNR, the conductance plateaus of \frac2e2h at zero magnetic field evolve smoothly to the quantum Hall regime, where the plateaus in conductance... From quantum confinement to quantum Hall effect in graphene nanostructures 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/7d079O01Zd410816c4ff75d1e33a2f86c4709ccce Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://prb.aps.org/accepted/B/12070O03Z72E5515c1e97d12fc4318fcd58429abe We perform Raman scattering experiments on natural graphite in magnetic fields up to 45 T, observing a series of peaks due to interband electronic excitations over a much broader magnetic field range than previously reported. We also explore electron-phonon coupling in graphite via magneto-phon... Magnetophonon resonance in graphite: High-field Raman measurements and electron-phonon coupling contributions 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/12070O03Z72E5515c1e97d12fc4318fcd58429abe Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://prb.aps.org/accepted/B/eb073Yc5S9417733549560f2321e0bfe738abdf17 Friedel's sum rule provides an explicit expression for a conductance functional, G[n], valid for the single impurity Anderson model at zero temperature. The functional is special because it does not depend on the interaction strength U. As a consequence, the Landauer conductance for the Kohn-Sham (K... Transport calculations based on density functional theory, Friedel's sum rule, and the Kondo effect 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/eb073Yc5S9417733549560f2321e0bfe738abdf17 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://prb.aps.org/accepted/B/81074O0dX861b316e4b8993826fd982bf8e91dacb Controlled Scanning Tunneling Microscopy (STM) experiments and first-principle simulations show that applied bias can significantly affect the topographic STM contrast of highly oriented pyrolytic graphite (HOPG) measured with W-tips in pure tunneling regime. Depending on the magnitude and polarity ... Role of applied bias and tip electronic structure in the scanning tunneling microscopy imaging of highly oriented pyrolytic graphite 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/81074O0dX861b316e4b8993826fd982bf8e91dacb Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://prb.aps.org/accepted/B/2607dO3bW9b11811d88666d91d6f70f5c7cb41ad1 We have performed high-field multi-frequency electron spin resonance (ESR) and high-field magnetization measurements in magnetic fields H of up to 53 T on single crystals of the kagome-lattice antiferromagnet KFe3(OH)6(SO4)2. We have analyzed the magnetization curve and the ESR excitation modes for ... High-field multifrequency ESR in the $S=\frac{5}{2}$ kagome-lattice antiferromagnet KFe$_3$(OH)$_6$(SO$_4$)$_2$ 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/2607dO3bW9b11811d88666d91d6f70f5c7cb41ad1 Magnetism Magnetism http://prb.aps.org/accepted/B/b8079Ob9W1b17b18c59a40d5cab5ede584cc2b307 We investigate the quench of half-filled 1D and 2D fermionic Hubbard models to models without Coulomb interaction. Since the time propagation is gaussian we can use a variety of time-dependent quantum Monte Carlo methods to tackle this problem without generating a dynamical sign problem. Using a con... Time and spatially resolved quench of the fermionic Hubbard model showing restricted equilibration 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/b8079Ob9W1b17b18c59a40d5cab5ede584cc2b307 Electronic structure and strongly correlated systems Electronic structure and strongly correlated systems http://prb.aps.org/accepted/B/7607cO46Z661cf1b170a7ae766165c87d0f77462f The rotational dynamics of cations and anions in the room temperature ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate ([C4mim]PF6) have been investigated in the supercooled liquid and glassy states using 13C, 31P and 19F NMR spectroscopy. The \alpha relaxation process of the supercoole... Cation and anion dynamics in supercooled and glassy states of the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate: Results from $^{13}$C, $^{31}$P, and $^{19}$F NMR spectroscopy 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/7607cO46Z661cf1b170a7ae766165c87d0f77462f Dynamics, dynamical systems, lattice effects Dynamics, dynamical systems, lattice effects http://prb.aps.org/accepted/B/ac078YcbX5b1413ec436106475fb58105bd1991c7 We report a study of low energy electronic structure and Fermi surface topology for the recently discovered iron-based superconductor Ca10(Pt3As8)(Fe2As2)5 (the 10-3-8 phase, with Tc ~ 8 K), via angle resolved photoemission spectroscopy (ARPES). Despite its triclinic crystal structure, ARPES results... Fermi surface topology and low-lying electronic structure of a new iron-based superconductor Ca$_{10}$(Pt$_{3}$As$_{8}$)(Fe$_{2}$As$_{2}$)$_{5}$ 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/ac078YcbX5b1413ec436106475fb58105bd1991c7 Superfluidity and superconductivity Superfluidity and superconductivity http://prb.aps.org/accepted/B/02074O32Z2cE5e14e1e593945cc8eecbc0178b993 Resonance diffraction in the periodic array of graphene micro-ribbons is theoretically studied following a recent experiment [L. Ju et al, Nature Nanotech. 6, 630 (2011)]. Systematic studies over a wide range of parameters are presented. It is shown that a much richer resonant picture would be obser... Surface plasmon enhanced absorption and suppressed transmission in periodic arrays of graphene ribbons 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/02074O32Z2cE5e14e1e593945cc8eecbc0178b993 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://prb.aps.org/accepted/B/eb07cO0fYfd1fc19e77098e6b37d3428d98c0085a The polar to non-polar interface of DyScO3 and SrTiO3 was studied using density functional theory. Due to the polar discontinuity, arising from nominally charged DyO or ScO2 layers, sharp interfaces induce a strong ferroelectric-like polarization in the SrTiO3, while in chemically mixed interfaces t... First-principles study of intermixing and polarization at the DyScO$_3$/SrTiO$_3$ interface 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/eb07cO0fYfd1fc19e77098e6b37d3428d98c0085a Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://prb.aps.org/accepted/B/42071Oe0Z091871ee74884e8a557ee2b95d6b17df We present the results of the magnetization and dielectric constant measurements on untwinned single crystal samples of the frustrated S=1/2 chain cuprate LiCu2O2. Novel magnetic phase transitions were observed. A spin flop transition of the spiral spin plane was observed for the field orientations ... Magnetic phase diagram of the frustrated $S=\frac{1}{2}$ chain magnet LiCu$_2$O$_2$ 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/42071Oe0Z091871ee74884e8a557ee2b95d6b17df Magnetism Magnetism http://prb.aps.org/accepted/B/ed078O22S941621368b402c6ddf56e4a3f39a0180 We present an effective electrical circuit model which can be used for a quasi-analytic analysis of electro-magnetic oscillations in arrays of coupled elements, resonant in the microwave domain. The model accounts for electric and magnetic interactions between charges and currents excited in individ... Advanced electrical circuit model of arrays of resonant elements 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/ed078O22S941621368b402c6ddf56e4a3f39a0180 Electronic structure and strongly correlated systems Electronic structure and strongly correlated systems http://prb.aps.org/accepted/B/e707bY7dZ6e1363233bd9d1609dc7903ef65c2358 We present results of ac-magnetic susceptibility, dc-magnetization and magnetotransport measurements on a single crystal of magnetic Eu(Fe0:81Co0:19)2As2 superconductor. The compound undergoes two phase transitions; into a canted antiferromagnetic (AF) state at TN = 16.5 K and superconducting (SC) s... Tuning superconductivity in Eu(Fe$_{0.81}$Co$_{0.19}$)$_2$As$_2$ with magnetic fields 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/e707bY7dZ6e1363233bd9d1609dc7903ef65c2358 Superfluidity and superconductivity Superfluidity and superconductivity http://prb.aps.org/accepted/B/9107bO1cT22E271d723a22a5116c8c3bdf9aa76d1 We experimentally study the effect of different scattering potentials on the 1/f noise generated in graphene devices on silica substrates. The noise in nominally identical devices is seen to behave in two distinct ways as a function of carrier concentration, changing either monotonically or nonmonot... Impurities as a source of $1/f$ noise in graphene 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/9107bO1cT22E271d723a22a5116c8c3bdf9aa76d1 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://prb.aps.org/accepted/B/7807cOaeCb5Rc31270693cf2faf3049e378f38b5d Publisher's Note: Spin-ordering and magnetoelastic coupling in the extended kagome system YBaCo$_4$O$_7$ [Phys. Rev. B \textbf{83}, 094412 (2011)] 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/7807cOaeCb5Rc31270693cf2faf3049e378f38b5d Errata Errata http://prb.aps.org/accepted/B/6f076OceY391d22b40ca09b646168700c7122086d Theory of spin-orbit coupling in bilayer graphene is presented. The electronic band structure of the AB bilayer in the presence of spin-orbit coupling and a transverse electric field is calculated from first-principles using the linearized augmented plane wave method implemented in the WIEN2k code. ... Theory of spin-orbit coupling in bilayer graphene 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/6f076OceY391d22b40ca09b646168700c7122086d Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://prb.aps.org/accepted/B/d8072O0aZ431601277c260a0c95951828283610af The Haldane pseudopotential construction has been an extremely powerful concept in quantum Hall physics - it not only gives a minimal description of the space of Hamiltonians but it also suggests special model Hamiltonians (those where certain pseudopotential are set to zero) which may have exactly ... Multiparticle pseudopotentials for multicomponent quantum Hall systems 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. B article Physical Review B http://prb.aps.org/accepted/B/d8072O0aZ431601277c260a0c95951828283610af Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems