http://prb.aps.org/ Recently published articles in Phys. Rev. B in the Table of Content section "Dynamics, dynamical systems, lattice effects, quantum solids" en-us Copyright (c) 2009 The American Physical Society 2009-11-22T06:15:19-05:00 assocpub@aps.org rss@aps.org hourly 4 2009-11-22T06:15:19-05:00 rss@aps.org http://link.aps.org/doi/10.1103/PhysRevB.80.180302 Author(s): Wen-Pin Hsieh, Bin Chen, Jie Li, Pawel Keblinski, and David G. Cahill<br/>The physics of heat conduction in layered, anisotropic crystals is probed by measurements of the cross-plane elastic constant C_{33} and thermal conductivity Λ of muscovite mica as a function of hydrostatic pressure. Picosecond interferometry and time-domain thermoreflectance provide high-precision...<br/><img src="http://prb.aps.org/files/SuggestionPRB30x30.jpg" alt="PRB Editors' Suggestion"/><br/> <img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 180302] Published Fri Nov 20, 2009 Wen-Pin Hsieh, Bin Chen, Jie Li, Pawel Keblinski, and David G. Cahill 2009-11-20T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.180302 Phys. Rev. B 80, 180302 text/html article Physical Review B 80 18 2009-11-20T00:00:00-05:00 180302 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.184302 Author(s): O. Delaire, A. F. May, M. A. McGuire, W. D. Porter, M. S. Lucas, M. B. Stone, D. L. Abernathy, V. A. Ravi, S. A. Firdosy, and G. J. Snyder<br/>The phonon density of states (DOS) of La_{3−x} Te_{4} compounds (x=0.0,0.18,0.32) was measured at 300, 520, and 780 K, using inelastic neutron scattering. A significant stiffening of the phonon DOS and a large broadening of features were observed upon introduction of vacancies on La sites (increas...<br/>[Phys. Rev. B 80, 184302] Published Thu Nov 19, 2009 O. Delaire, A. F. May, M. A. McGuire, W. D. Porter, M. S. Lucas, M. B. Stone, D. L. Abernathy, V. A. Ravi, S. A. Firdosy, and G. J. Snyder 2009-11-19T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.184302 Phys. Rev. B 80, 184302 text/html article Physical Review B 80 18 2009-11-19T00:00:00-05:00 184302 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.180301 Author(s): Teemu Ojanen<br/>We present a thermal transport phenomenon, a unidirectional selection-rule blockade, and show how it produces unprecedented rectification of bosonic heat flow through molecular or mesoscopic quantum systems. Rectification arises from the quantization of energy levels of the conduction element and se...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 180301] Published Wed Nov 18, 2009 Teemu Ojanen 2009-11-18T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.180301 Phys. Rev. B 80, 180301 text/html article Physical Review B 80 18 2009-11-18T00:00:00-05:00 180301 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.172302 Author(s): R. Pessoa, M. de Koning, and S. A. Vitiello<br/>We address the issue of interaction between zero-point vacancies in solid ^{4} He as described within the shadow wave function model. Applying the reversible-work method and taking into account finite-size effects, we obtain a zero-point monovacancy concentration of (2.03±0.02)×10^{−3} , which i...<br/>[Phys. Rev. B 80, 172302] Published Mon Nov 16, 2009 R. Pessoa, M. de Koning, and S. A. Vitiello 2009-11-16T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.172302 Phys. Rev. B 80, 172302 text/html article Physical Review B 80 17 2009-11-16T00:00:00-05:00 172302 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.174301 Author(s): Nitish Nair and Michael S. Strano<br/>We have performed a parametric study of self-propagating chain reactions along a one-dimensional bead-spring array. The coupling between beads is modeled using harmonic and anharmonic Fermi-Pasta-Ulam (FPU)- β and φ^{4} potentials. The parameters that define the system are the activation energy (E...<br/>[Phys. Rev. B 80, 174301] Published Fri Nov 13, 2009 Nitish Nair and Michael S. Strano 2009-11-13T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.174301 Phys. Rev. B 80, 174301 text/html article Physical Review B 80 17 2009-11-13T00:00:00-05:00 174301 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.172301 Author(s): Lifa Zhang, Yonghong Yan, Chang-Qin Wu, Jian-Sheng Wang, and Baowen Li<br/>We study thermal transport in anisotropic Heisenberg spin chains using the quantum master equation. It is found that thermal rectification changes sign when the external homogeneous magnetic field is varied. This reversal also occurs when the magnetic field becomes inhomogeneous. Moreover, we can tu...<br/>[Phys. Rev. B 80, 172301] Published Thu Nov 12, 2009 Lifa Zhang, Yonghong Yan, Chang-Qin Wu, Jian-Sheng Wang, and Baowen Li 2009-11-12T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.172301 Phys. Rev. B 80, 172301 text/html article Physical Review B 80 17 2009-11-12T00:00:00-05:00 172301 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.184301 Author(s): A. Serghei, M. Tress, J. R. Sangoro, and F. Kremer<br/>A quantitative description is suggested for electrode polarization, an ubiquitous phenomenon which takes place at the interface between a metallic and an ionic conductor and results in an increase by many orders of magnitude in the net dielectric response of the sample cell. Based on the fact that d...<br/>[Phys. Rev. B 80, 184301] Published Thu Nov 05, 2009 A. Serghei, M. Tress, J. R. Sangoro, and F. Kremer 2009-11-05T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.184301 Phys. Rev. B 80, 184301 text/html article Physical Review B 80 18 2009-11-05T00:00:00-05:00 184301 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.134306 Author(s): Niall J. English, John S. Tse, and Declan J. Carey<br/>Extensive equilibrium molecular-dynamics simulations have been performed to investigate thermal-conduction mechanisms via the Green-Kubo approach for fully occupied type I, II, and H methane hydrates, in addition to ice Ih and a hypothetical empty type I hydrate structure. The TIP4P water model was ...<br/>[Phys. Rev. B 80, 134306] Published Thu Oct 29, 2009 Niall J. English, John S. Tse, and Declan J. Carey 2009-10-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134306 Phys. Rev. B 80, 134306 text/html article Physical Review B 80 13 2009-10-29T00:00:00-04:00 134306 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.134305 Author(s): Kehan Tian, William Arora, Satoshi Takahashi, John Hong, and George Barbastathis<br/>We describe a tunable slow light device based on a photonic-crystal with a mechanically adjustable coupled-resonator optical waveguide structure. The lateral energy confinement is implemented along a lattice shear defect with the group velocity actively controlled by shifting the shear along the def...<br/>[Phys. Rev. B 80, 134305] Published Thu Oct 29, 2009 Kehan Tian, William Arora, Satoshi Takahashi, John Hong, and George Barbastathis 2009-10-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134305 Phys. Rev. B 80, 134305 text/html article Physical Review B 80 13 2009-10-29T00:00:00-04:00 134305 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.144304 Author(s): Vincent Pouthier<br/>A time-convolutionless master equation is established for studying the dynamics of a narrow-band exciton coupled with optical phonons. Within the nonadiabatic weak-coupling limit, the diagonal hypothesis works quite well so that the exciton-phonon dynamics is mainly governed by the so-called time-de...<br/>[Phys. Rev. B 80, 144304] Published Fri Oct 23, 2009 Vincent Pouthier 2009-10-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.144304 Phys. Rev. B 80, 144304 text/html article Physical Review B 80 14 2009-10-23T00:00:00-04:00 144304 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.134304 Author(s): Klaus-Peter Bohnen, Rolf Heid, Lothar Pintschovius, Aloysius Soon, and Catherine Stampfl<br/>Using ab initio density-functional perturbation theory the lattice dynamics of Cu_{2} O has been extensively studied. Discrepancies with older neutron-scattering results triggered a neutron-scattering investigation of our own which confirmed the theoretical prediction. Based on the accurate descript...<br/>[Phys. Rev. B 80, 134304] Published Thu Oct 22, 2009 Klaus-Peter Bohnen, Rolf Heid, Lothar Pintschovius, Aloysius Soon, and Catherine Stampfl 2009-10-22T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134304 Phys. Rev. B 80, 134304 text/html article Physical Review B 80 13 2009-10-22T00:00:00-04:00 134304 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.134303 Author(s): V. J. Sánchez-Morcillo, K. Staliunas, V. Espinosa, I. Pérez-Arjona, J. Redondo, and E. Soliveres<br/>A theoretical and experimental study of the propagation of sound beams in and behind two-dimensional sonic crystals at frequencies close to the band edges is presented. Beam focusing is predicted and discussed. We evaluate, by analytical numerical methods, the main focusing characteristics, such as ...<br/>[Phys. Rev. B 80, 134303] Published Tue Oct 20, 2009 V. J. Sánchez-Morcillo, K. Staliunas, V. Espinosa, I. Pérez-Arjona, J. Redondo, and E. Soliveres 2009-10-20T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134303 Phys. Rev. B 80, 134303 text/html article Physical Review B 80 13 2009-10-20T00:00:00-04:00 134303 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.144303 Author(s): A. Nowaczyk, B. Geil, S. Schildmann, and R. Böhmer<br/>The guest dynamics in tetrahydrofuran (THF) clathrate hydrate (THF⋅17H_{2} O) was studied using several deuteron nuclear magnetic resonance (NMR) techniques. At low temperatures the magnetization recovery proceeds in two steps. The weight of the faster contribution decreases with decreasing temper...<br/>[Phys. Rev. B 80, 144303] Published Thu Oct 15, 2009 A. Nowaczyk, B. Geil, S. Schildmann, and R. Böhmer 2009-10-15T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.144303 Phys. Rev. B 80, 144303 text/html article Physical Review B 80 14 2009-10-15T00:00:00-04:00 144303 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.134302 Author(s): V. E. Antonov, A. I. Davydov, V. K. Fedotov, A. S. Ivanov, A. I. Kolesnikov, and M. A. Kuzovnikov<br/>Three powder samples of solid isotopic solutions PdD_{1−x} H_{x} with x=0.050 , 0.072, and 0.091 are prepared under high pressure, and the spectra of their optical vibrations are studied by inelastic neutron scattering at ambient pressure and 5 K using the high-luminosity IN1-BeF spectrometer at I...<br/>[Phys. Rev. B 80, 134302] Published Thu Oct 15, 2009 V. E. Antonov, A. I. Davydov, V. K. Fedotov, A. S. Ivanov, A. I. Kolesnikov, and M. A. Kuzovnikov 2009-10-15T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134302 Phys. Rev. B 80, 134302 text/html article Physical Review B 80 13 2009-10-15T00:00:00-04:00 134302 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.144302 Author(s): Y. Pennec, B. Djafari Rouhani, H. Larabi, A. Akjouj, J. N. Gillet, J. O. Vasseur, and G. Thabet<br/>We present a theoretical analysis of the phonon transport and guiding of acoustic waves in a phononic crystal made up of a square array of cylindrical dots, which is deposited on a thin homogeneous plate. With appropriate choice of the geometrical parameters, this structure can display several gaps,...<br/>[Phys. Rev. B 80, 144302] Published Tue Oct 13, 2009 Y. Pennec, B. Djafari Rouhani, H. Larabi, A. Akjouj, J. N. Gillet, J. O. Vasseur, and G. Thabet 2009-10-13T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.144302 Phys. Rev. B 80, 144302 text/html article Physical Review B 80 14 2009-10-13T00:00:00-04:00 144302 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.144301 Author(s): J. I. Pérez-Landazábal, V. Recarte, V. Sánchez-Alarcos, J. A. Rodríguez-Velamazán, M. Jiménez-Ruiz, P. Link, E. Cesari, and Y. I. Chumlyakov<br/>Precursor phenomena were investigated in a Ni-Fe-Ga alloy close to the stoichiometric Heusler composition Ni_{2} FeGa . In particular, the phonon-dispersion curves, the diffuse scattering and the magnetic properties of a single crystalline Ni_{51.5} Fe_{21.5} Ga_{27} alloy were measured as a functio...<br/>[Phys. Rev. B 80, 144301] Published Thu Oct 08, 2009 J. I. Pérez-Landazábal, V. Recarte, V. Sánchez-Alarcos, J. A. Rodríguez-Velamazán, M. Jiménez-Ruiz, P. Link, E. Cesari, and Y. I. Chumlyakov 2009-10-08T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.144301 Phys. Rev. B 80, 144301 text/html article Physical Review B 80 14 2009-10-08T00:00:00-04:00 144301 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.134301 Author(s): E. Vorobeva, S. L. Johnson, P. Beaud, C. J. Milne, M. Benfatto, and G. Ingold<br/>Transient changes in the local structure of optically excited Ti^{3+} ions in a Al_{2} O_{3} single crystal are studied by time-resolved x-ray absorption spectroscopy. A model considering coupling of the excited ^{2} E(C_{3v} ) electronic state of the Ti^{3+} ion to the approximate A_{1g} (O_{h} ) a...<br/>[Phys. Rev. B 80, 134301] Published Tue Oct 06, 2009 E. Vorobeva, S. L. Johnson, P. Beaud, C. J. Milne, M. Benfatto, and G. Ingold 2009-10-06T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.134301 Phys. Rev. B 80, 134301 text/html article Physical Review B 80 13 2009-10-06T00:00:00-04:00 134301 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.140301 Author(s): Kunio Ishida and Keiichiro Nasu<br/>We study the lattice dynamics of photoinduced structural change by a model of localized electrons coupled with an optical phonon mode. We found that the deformation of individual molecular units obey the large deviation statistics, and found that we can discuss the dynamics before/after structural c...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 140301] Published Thu Oct 01, 2009 Kunio Ishida and Keiichiro Nasu 2009-10-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.140301 Phys. Rev. B 80, 140301 text/html article Physical Review B 80 14 2009-10-01T00:00:00-04:00 140301 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.094304 Author(s): Satoshi Tanaka, Kazuki Kanki, and Tomio Petrosky<br/>We have theoretically investigated a long-time transport process of a quantum Brownian particle interacting with a thermal phonon field in a one-dimensional molecular chain. A kinetic equation is derived from a quantum Liouville equation in a weak-coupling case by applying a complex spectral represe...<br/>[Phys. Rev. B 80, 094304] Published Wed Sep 30, 2009 Satoshi Tanaka, Kazuki Kanki, and Tomio Petrosky 2009-09-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.094304 Phys. Rev. B 80, 094304 text/html article Physical Review B 80 9 2009-09-30T00:00:00-04:00 094304 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.094303 Author(s): A. I. Chumakov, A. Bosak, and R. Rüffer<br/>We consider the contribution of acoustic modes to the density of vibrational states measured by nuclear inelastic, inelastic x-ray, and inelastic neutron scattering. In nuclear and x-ray scattering, the low-energy part of the density of states (DOS) is compared with the contribution of acoustic mode...<br/>[Phys. Rev. B 80, 094303] Published Tue Sep 29, 2009 A. I. Chumakov, A. Bosak, and R. Rüffer 2009-09-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.094303 Phys. Rev. B 80, 094303 text/html article Physical Review B 80 9 2009-09-29T00:00:00-04:00 094303 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.104302 Author(s): Dahai He (贺达海), Sahin Buyukdagli, and Bambi Hu (胡斑比)<br/>Negative differential resistance in electronic conduction has been extensively studied, but it is not the case for its thermal counterpart, namely, negative differential thermal resistance (NDTR). We present a classical Landauer formula in which the nonlinearity is incorporated by the self-consisten...<br/>[Phys. Rev. B 80, 104302] Published Tue Sep 29, 2009 Dahai He (贺达海), Sahin Buyukdagli, and Bambi Hu (胡斑比) 2009-09-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.104302 Phys. Rev. B 80, 104302 text/html article Physical Review B 80 10 2009-09-29T00:00:00-04:00 104302 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.092301 Author(s): Vincent Laude, Younes Achaoui, Sarah Benchabane, and Abdelkrim Khelif<br/>The complex band structure of a phononic crystal is composed of both propagating and evanescent Bloch waves. Evanescent Bloch waves are involved in the diffraction of acoustic phonons at the interfaces of finite phononic crystal structures. They are shown to arise both because of band gaps, where th...<br/>[Phys. Rev. B 80, 092301] Published Fri Sep 18, 2009 Vincent Laude, Younes Achaoui, Sarah Benchabane, and Abdelkrim Khelif 2009-09-18T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.092301 Phys. Rev. B 80, 092301 text/html article Physical Review B 80 9 2009-09-18T00:00:00-04:00 092301 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.104301 Author(s): Pietro Delugas, Vincenzo Fiorentini, and Alessio Filippetti<br/>Most sesquioxides (X_{2} O_{3} ) with a rare-earth cation crystallize in the cubic structure known as bixbyite, also adopted by oxides with smaller trivalent cations (e.g., Sc and Y). Here we discuss the dielectric behavior of these crystals on the basis of results of density-functional calculations...<br/>[Phys. Rev. B 80, 104301] Published Fri Sep 18, 2009 Pietro Delugas, Vincenzo Fiorentini, and Alessio Filippetti 2009-09-18T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.104301 Phys. Rev. B 80, 104301 text/html article Physical Review B 80 10 2009-09-18T00:00:00-04:00 104301 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.094302 Author(s): Sergey V. Dmitriev, Andrey A. Sukhorukov, Anatoly I. Pshenichnyuk, Liya Z. Khadeeva, Albert M. Iskandarov, and Yuri S. Kivshar<br/>We study the dynamics of one- and two-dimensional diatomic lattices with the interatomic Morse potentials for the initial conditions selected at the edge of the Brillouin zone of the dispersion spectrum, when only light atoms are excited with the staggered mode while all heavy atoms remain at rest (...<br/>[Phys. Rev. B 80, 094302] Published Thu Sep 17, 2009 Sergey V. Dmitriev, Andrey A. Sukhorukov, Anatoly I. Pshenichnyuk, Liya Z. Khadeeva, Albert M. Iskandarov, and Yuri S. Kivshar 2009-09-17T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.094302 Phys. Rev. B 80, 094302 text/html article Physical Review B 80 9 2009-09-17T00:00:00-04:00 094302 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.094301 Author(s): Giuseppe Carleo, Saverio Moroni, and Stefano Baroni<br/>The lattice dynamics of hcp crystalline ^{4} He is studied at zero temperature and for two different densities (near and far from melting), using a ground-state path-integral quantum Monte Carlo technique. The complete phonon dispersion is obtained, with particular attention to the separation of opt...<br/>[Phys. Rev. B 80, 094301] Published Mon Sep 14, 2009 Giuseppe Carleo, Saverio Moroni, and Stefano Baroni 2009-09-14T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.094301 Phys. Rev. B 80, 094301 text/html article Physical Review B 80 9 2009-09-14T00:00:00-04:00 094301 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.100301 Author(s): R. Gremaud, Z. Łodziana, P. Hug, B. Willenberg, A.-M. Racu, J. Schoenes, A. J. Ramirez-Cuesta, S. J. Clark, K. Refson, A. Züttel, and A. Borgschulte<br/>We provide direct evidence for successive exchange of D atoms in the isotopically pure BH_{4}^{−} units of the crystalline solid lithium borohydride. We prove the coexistence of all BH_{4−n} D_{n}^{−} (0≤n≤4) units in the bulk by deconvolution of the D-stretching vibrations band of Raman s...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 100301] Published Thu Sep 10, 2009 R. Gremaud, Z. Łodziana, P. Hug, B. Willenberg, A.-M. Racu, J. Schoenes, A. J. Ramirez-Cuesta, S. J. Clark, K. Refson, A. Züttel, and A. Borgschulte 2009-09-10T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.100301 Phys. Rev. B 80, 100301 text/html article Physical Review B 80 10 2009-09-10T00:00:00-04:00 100301 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.064302 Author(s): M. Wilkening, J. Heine, C. Lyness, A. R. Armstrong, and P. G. Bruce<br/>Li_{x} TiO_{2} -B nanowires (0<x≤0.9) are considered to act as promising anode materials in secondary Li-ion batteries. Li self-diffusion parameters in mixed conducting nanowires of the composition Li_{0.3} TiO_{2} are directly determined by mixing time (t_{m} ) -dependent two-time ^{7} Li spin-alignment echo (SAE) nuclear-magnetic-resonance (NMR) correlation spectroscopy between 330 and 500 K. SAE NMR reveals extremely slow Li self-diffusion processes in Li_{x} TiO_{2} -B . Li jump rates τ^{−1} range from 5 to 2.5×10^{3}  s^{−1} . The corresponding hopping correlation functions F_{2} can be well parametrized with stretched exponentials, F_{2} ∝exp[−(t/t_{m} )^{γ} ] , with an exponent γ=0.35(2) being independent of temperature. The influence of spin-diffusion effects on the echo amplitude is elaborated by evolution time-dependent ^{7} Li SAE-NMR experiments. The results are compared with those obtained by conventional ^{7} Li NMR spin-lattice relaxation measurements.<br/>[Phys. Rev. B 80, 064302] Published Thu Aug 27, 2009 M. Wilkening, J. Heine, C. Lyness, A. R. Armstrong, and P. G. Bruce 2009-08-27T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.064302 Phys. Rev. B 80, 064302 text/html article Physical Review B 80 6 2009-08-27T00:00:00-04:00 064302 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.054304 Author(s): Chen W. Li, Michael M. McKerns, and B. Fultz<br/>Raman spectra of monoclinic hafnium oxide (HfO_{2} ) were measured at temperatures up to 1100 K. Raman peak shifts and broadenings are reported. Phonon dynamics calculations were performed with the shell model to obtain the total and partial phonon density of states, and to identify the individual m...<br/>[Phys. Rev. B 80, 054304] Published Thu Aug 27, 2009 Chen W. Li, Michael M. McKerns, and B. Fultz 2009-08-27T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.054304 Phys. Rev. B 80, 054304 text/html article Physical Review B 80 5 2009-08-27T00:00:00-04:00 054304 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.052303 Author(s): L. I. Vergara, J. Cao, N. Rogado, Y. Q. Wang, R. P. Chaudhury, R. J. Cava, B. Lorenz, and J. L. Musfeldt<br/>We measured the infrared-active vibrational modes of the Kagomé staircase compound Ni_{3} V_{2} O_{8} as a function of temperature to elucidate magnetoelastic interactions and local structure changes through the series of magnetic-ordering transitions. A detailed analysis of frequency-shift trends ...<br/>[Phys. Rev. B 80, 052303] Published Thu Aug 27, 2009 L. I. Vergara, J. Cao, N. Rogado, Y. Q. Wang, R. P. Chaudhury, R. J. Cava, B. Lorenz, and J. L. Musfeldt 2009-08-27T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.052303 Phys. Rev. B 80, 052303 text/html article Physical Review B 80 5 2009-08-27T00:00:00-04:00 052303 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids http://link.aps.org/doi/10.1103/PhysRevB.80.052302 Author(s): H. Zhang, D. Y. Tang, L. M. Zhao, and X. Wu<br/>We report on the experimental observation of two types of phase-locked vector soliton in weakly birefringent cavity erbium-doped fiber lasers. While a phase-locked dark-dark vector soliton was only observed in fiber lasers of positive dispersion, a phase-locked dark-bright vector soliton was obtaine...<br/>[Phys. Rev. B 80, 052302] Published Wed Aug 19, 2009 H. Zhang, D. Y. Tang, L. M. Zhao, and X. Wu 2009-08-19T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.052302 Phys. Rev. B 80, 052302 text/html article Physical Review B 80 5 2009-08-19T00:00:00-04:00 052302 Dynamics, dynamical systems, lattice effects, quantum solids Dynamics, dynamical systems, lattice effects, quantum solids