| Volume 107, Issues 17 - 20 May 2023 | | Advertisement Discuss your research with Editors from the Physical Review Journals at DAMOP 2023 Got a question about your paper? Interested in learning more about the submission process? Want to become a referee? There are several opportunities to gain insight from editors from Physical Review Letters, Physical Review X, and Physical Review A at the 54th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics in Spokane, Washington.
Tutorial for Authors and Referees - Wednesday, June 7 from 3:30 p.m. – 4:30 p.m. in Room 201 ABC
Meet the APS Journal Editors - Wednesday, June 7 from 4:30 p.m. – 6:00 p.m. in the Riverside Lobby.
Plus, editors will be available for informal discussions at the Journals Booth, located in the Lobby area from 10 a.m. - 11 a.m., Monday, June 6 through Thursday, June 8, and again from 3:30 p.m. - 4:30 p.m. Tuesday, June 7 and Thursday, June 8. | | | | |
Advertisement  | The American Physical Society (APS), publisher of the Physical Review journals, is joining more than 20,000 individuals and organizations across 160 countries in a commitment to improve how researchers and their contributions to the scientific record are evaluated. APS is proud to mark the 10th anniversary of the Declaration on Research Assessment (DORA) by officially signing on to the international initiative. Learn more. | | | | | | Advertisement | APS would like to learn about your publishing experiences with scientific journals, including PRL and other Physical Review journals. Please complete this survey to help APS better understand and meet your publishing needs. Take the survey. | | | | | | Not an APS member? Join today to start connecting with a community of more than 50,000 physicists. | | | | Editors' Suggestion Qile Wu and Mark S. Sherwin Phys. Rev. B 107, 174308 (2023) – Published 18 May 2023  | The authors derive here an explicit formula for a nonperturbative nonlinear optical phenomena called high-order sideband generation (HSG). The formula is valid over a wide range of experimentally accessible conditions. The results indicate a way to extract information on band structures and nonequilibrium dephasing rates from HSG experiments with simple algebraic calculations. This work also provides hints for analysis of HSG in multiband systems with non-Abelian Berry curvatures, as well as interband processes in high-harmonic generation. | | | | | | Editors' Suggestion D. Flavián, J. Nagl, S. Hayashida, M. Yan, O. Zaharko, T. Fennell, D. Khalyavin, Z. Yan, S. Gvasaliya, and A. Zheludev Phys. Rev. B 107, 174406 (2023) – Published 5 May 2023  | The newly discovered Nd3BWO9 is a rare instance of a disorder-free magnet with an exchange topology interpolating between 2D kagome and 1D spin tubes. In this study, an array of measurements reveals its exotic phase diagram. The complex frustration mechanism results in several ordered phases, including two different, typically two-dimensional 1/3- magnetization plateaux. Meanwhile, one-dimensional tube correlations are unequivocally identified by signatures in both thermodynamic and microscopic probes. | | | | | | Editors' Suggestion Lingyao Kong, Jin Tang, Weiwei Wang, Yaodong Wu, Jialiang Jiang, Yihao Wang, Junbo Li, Yimin Xiong, Mingliang Tian, and Haifeng Du Phys. Rev. B 107, 174425 (2023) – Published 16 May 2023  | It has been widely established that there exist two types of magnetic bubbles. Here, the authors present the theory and experiment of a novel three-dimensional bubble state, referred to as the type-III bubble, which is composed of Néel-twisted skyrmions with topological charge Q = -1 in the near-surface layers and type-II bubbles with Q = 0 in the interior layers. Furthermore, the authors demonstrate a method for creating the type-III bubble and the topological magnetic transformation among the three types of bubbles. | | | | | | Editors' Suggestion K. Jenni, S. Kunkemöller, A. Tewari, R. A. Ewings, Y. Sidis, A. Schneidewind, P. Steffens, A. A. Nugroho, and M. Braden Phys. Rev. B 107, 174429 (2023) – Published 23 May 2023  | Magnetic excitations in the itinerant magnet SrRuO3 were studied by the combination of various neutron scattering techniques. Although a Heisenberg local-moment model well describes the low-energy magnon dispersion, severe suppression of intensities and stiffening of the dispersion at high energies, as well as a strong broadening, are clear finger prints of the itinerant character of magnetism in SrRuO3. | | | | | | Editors' Suggestion Pavel A. Volkov, Justin H. Wilson, Kevin P. Lucht, and J. H. Pixley Phys. Rev. B 107, 174506 (2023) – Published 4 May 2023  | Stacking 2D materials with a twist has proven to be a successful strategy to realize exotic phases of electrons. Here, the authors apply these ideas to intrinsic 2D nodal superconductors, showing a similar degree of control over neutral Dirac quasiparticles. Their velocity is quenched close to a "magic" angle, where interactions drive a time-reversal breaking phase transition. Gating and application of current and magnetic fields are shown to allow tuning their dispersion in future experiments and to open topological gaps. | | | | | | Featured in Physics Editors' Suggestion F. Claude, M. J. Jacquet, I. Carusotto, Q. Glorieux, E. Giacobino, and A. Bramati Phys. Rev. B 107, 174507 (2023) – Published 8 May 2023  | The phenomenology of superfluids and Bose-Einstein condensates is generally understood in terms of quantum hydrodynamics, which depend on the dispersion of the collective excitation modes in the quantum fluid. Here, via the implementation of a high-resolution spectroscopy technique, the authors highlight the peculiarities of collective excitations of a polariton superfluid and reveal a wealth of phenomena intrinsically linked to the light-matter and driven-dissipative nature of their system, such as the observation of a ghost branch highlighted in red in the image. | | | | | | Editors' Suggestion Mathieu Lizée, Matthias Stosiek, Igor Burmistrov, Tristan Cren, and Christophe Brun Phys. Rev. B 107, 174508 (2023) – Published 8 May 2023  | Could disorder enhance superconductivity? Close to the Anderson transition, electronic wave functions show a peculiar multifractal structure, predicted to enhance Cooper pairing. Here, the authors probe the weak disorder limit using an atomic monolayer of lead with high-resolution scanning tunneling spectroscopy. They show that mesoscopic spatial fluctuations of the electronic density of states indicate coherent diffusion of electrons. They use these energy-dependent fluctuations to reveal tiny energy gap fluctuations and to extract the elastic mean free path, dephasing length, as theoretically expected. | | | | | | Editors' Suggestion Zhiyu Dong, Andrey V. Chubukov, and Leonid Levitov Phys. Rev. B 107, 174512 (2023) – Published 11 May 2023  | The recently discovered superconductivity in Bernal bilayer graphene features unique behavior that distinguishes it from conventional superconductors. Firstly, the onset of superconductivity is associated with the emergence of an isospin-polarized phase, driven by Stoner instability. Secondly, the superconductivity is activated by a magnetic field and persists beyond the Pauli limit. These properties have sparked the interest of researchers and prompted the search for a pairing mechanism that can account for these findings. This paper reports on recent progress in this quest. | | | | | | Editors' Suggestion Xingyue Ma, Mingxing Chen, Jun-Ming Liu, Di Wu, and Yurong Yang Phys. Rev. B 107, 184105 (2023) – Published 10 May 2023  | The electrocaloric effect offers a promising alternative to traditional gas compressing refrigeration. Unlike the normal electrocaloric effect, the inverse electrocaloric effect is believed to be very rare. In this study, first-principles-based effective Hamiltonian methods are used and the inverse electrocaloric effect is found to be a universal phenomenon in oxide and halide perovskites over different structural phases. Such an unusual effect originates from the entropy change related to the oxygen/halogen octahedron. | | | | | | Editors' Suggestion Sebastian Bichelmaier, Jesús Carrete, Ralf Wanzenböck, Florian Buchner, and Georg K. H. Madsen Phys. Rev. B 107, 184111 (2023) – Published 17 May 2023  | Machine learning methods, and in particular neural-network force fields (NNFF), are bridging the gap between macroscopically relevant parameters and quantum mechanical simulations. This work describes an NNFF training strategy and uses it as the back end for an effective harmonic potential study of phase transitions in hafnia. While good agreement with experiment is found regarding the monoclinic-tetragonal transition, the commonly assumed transition to a Fm3̅ m cubic phase is found to be unlikely for the stoichiometric material | | | | | | Editors' Suggestion M. Volkov, S. A. Sato, A. Niedermayr, A. Rubio, L. Gallmann, and U. Keller Phys. Rev. B 107, 184304 (2023) – Published 5 May 2023  | Complex nonadiabatic dynamics are observed when the quiver energy of an electron-hole pair in a strong laser field becomes comparable to the photon energy. Here, the authors extend quasistatic electromodulation spectroscopy based on the Franz-Keldysh effect to this regime and show that in this limit it is governed by resonant transitions between Floquet-Bloch states. This regime opens opportunities to probe the effective mass as well as the ponderomotive and binding energies of the electron-hole pair on the attosecond timescale. | | | | | | Editors' Suggestion Seungho Lee, Kouki Nakata, Oleg Tchernyshyov, and Se Kwon Kim Phys. Rev. B 107, 184432 (2023) – Published 16 May 2023  | The novel interaction of a skyrmion-textured domain wall and magnons is investigated theoretically for 2D antiferromagnets with the aid of supersymmetric quantum mechanics. The scattering of propagating magnons at the domain wall is found to be governed by the emergent magnetic field coming from the skyrmion texture of the domain wall, which gives rise to the tunable spin Nernst effect. The exact theoretical analysis also yields new nonreciprocal magnons, bound to the topologically textured domain wall. | | | | | | Editors' Suggestion Jonathan Z. Sun, Christopher Safranski, Philip Trouilloud, Christopher D'Emic, Pouya Hashemi, and Guohan Hu Phys. Rev. B 107, 184433 (2023) – Published 17 May 2023  | Super-paramagnetic fluctuation of a nanomagnet, when confined by a strong easy-plane anisotropy, can yield GHz speed random signal. A magnetic tunnel junction converts such moment movement into conductance fluctuation, and is useful as an entropy source for modern computing circuits. Here, the authors experimentally explore the base-line behavior of easy-plane magnetic tunnel junctions in the super-paramagnetic limit, using a CMOS back-end integrated fabrication process, and introduce some measurement methodologies to identify factors in device materials and fabrication in need of future optimization. | | | | | | Editors' Suggestion F. Giorgianni, B. Wehinger, S. Allenspach, N. Colonna, C. Vicario, P. Puphal, E. Pomjakushina, B. Normand, and Ch. Rüegg Phys. Rev. B 107, 184440 (2023) – Published 25 May 2023  | Ultrafast laser probing has revolutionized the study of quantum materials. Quantum magnets realize some of the most complex and entangled many-body states in condensed matter. Here, the authors unify ultrafast physics and quantum magnetism by pump-probe experiments on the frustrated magnet SrCu2(BO3)2, using terahertz light pulses to create coherent driving of the lattice phonons, which in turn creates a special singlet spin excitation. Their phonon-based method introduces a universal mechanism for controlling nonequilibrium quantum many-body physics on ultrafast timescales. | | | | | | Editors' Suggestion Artur M. Lacerda, Archak Purkayastha, Michael Kewming, Gabriel T. Landi, and John Goold Phys. Rev. B 107, 195117 (2023) – Published 10 May 2023  | In the mesoscopic leads technique, continuum environments at finite temperature are modeled via a finite-set modes, which are in turn damped by Markovian dissipation. Here, the authors extended this approach to include arbitrary time dependence in the Hamiltonian of the central system and performed detailed assessment of the thermodynamic quantities. They illustrated their approach by applying the technique to the driven resonant level model and to a driven double dot system, which is a noninteracting system exhibiting rectification. | | | | | | Editors' Suggestion Philip Zechmann, Ehud Altman, Michael Knap, and Johannes Feldmeier Phys. Rev. B 107, 195131 (2023) – Published 16 May 2023  | Dynamical constraints have drastic consequences for the properties of many-particle quantum systems. Here, the authors study the quantum ground state phases in a fracton system of interacting bosons with dipole conservation. Through a combination of low-energy field theory and tensor network simulations, they identify a novel dipole Luttinger liquid phase as well as a fracton analogue of a supersolid state. | | | | | | Editors' Suggestion Ethan Lake, Hyun-Yong Lee, Jung Hoon Han, and T. Senthil Phys. Rev. B 107, 195132 (2023) – Published 16 May 2023  | The authors study a Bose-Hubbard model whose dynamics conserves the total center of mass, a situation which arises in strongly tilted optical lattices. Center of mass conservation is shown to dramatically alter the nature of the quantum phase diagram, which hosts several types of unusual gapless phases. These results hint at a wealth of interesting phenomena waiting to be uncovered in the physics of kinetically constrained many-body systems. | | | | | | Editors' Suggestion Oles Matsyshyn, Justin C. W. Song, Inti Sodemann Villadiego, and Li-kun Shi Phys. Rev. B 107, 195135 (2023) – Published 18 May 2023  | This work demonstrates exactly that, when coupled to an ideal fermionic bath, the occupation of a driven Floquet band deviates from the Fermi-Dirac distribution function of the Floquet energy, and instead becomes a staircase version of this distribution. This allows us to show the existence of a finite rectified electric current within the optical gap of a metal, even in the limit of vanishing carrier relaxation rates. | | | | | | Editors' Suggestion A. Khansili, A. Bangura, R. D. McDonald, B. J. Ramshaw, A. Rydh, and A. Shekhter Phys. Rev. B 107, 195145 (2023) – Published 23 May 2023  | Rabi, in atomic beams, and, later, Purcell, in solids, led the way in using nuclear spins as a probe of orbital and spin dynamics of electrons. These studies use radio frequency pulses to disturb the nuclear spins from their equilibrium with electrons and then monitor their relaxation. This paper expands the range of materials where electron dynamics can be accessed via their interaction with nuclear spins – this time, using ultrafast nanocalorimeters instead of radio frequency spectrometers. | | | | | | Editors' Suggestion Wen-Yu He and Patrick A. Lee Phys. Rev. B 107, 195155 (2023) – Published 31 May 2023  | The authors study the orbital magnetic field induced Landau quantization of a quantum spin liquid with spinon Fermi surface. In the electronic density of states of the quantum spin liquid, the Landau quantization is found to induce a set of band-edge steps, band-edge resonance peaks, or in-gap bound states when the gauge-field fluctuations are negligible, weak, or strong, respectively. The results indicate that the Landau quantization of the spinon Fermi surface can be detected through scanning tunneling microscope measurements. | | | | | | Editors' Suggestion Wen-Yu He and Patrick A. Lee Phys. Rev. B 107, 195156 (2023) – Published 31 May 2023  | This work studies the Zeeman magnetic field effect on a quantum spin liquid with a spinon Fermi surface. In the absence of gauge binding, the quantum spin liquid electronic density of states exhibits no Zeeman shift in the threshold energy. As the gauge binding increases, the band edge resonance peaks exhibit a reduced Zeeman shift and eventually have the Zeeman shift direction reversed for a sufficiently large gauge binding. The authors further suggest to use such anomalous Zeeman response to identify the gapless quantum spin liquid phase. | | | | | | Featured in Physics Editors' Suggestion Martin Speight, Thomas Winyard, and Egor Babaev Phys. Rev. B 107, 195204 (2023) – Published 30 May 2023  | The structure of vortex lattices for unconventional superconductors is mostly unknown and a mathematically challenging problem. The authors propose a general method to find vortex lattices for any superconducting system. They focus on the example of nematic superconductors, demonstrating that in an external magnetic field such superconductors form chains of fractional vortices. Their approach, by describing the geometry of the unit cell, directly maps to the signal such lattices exhibit in muon spin rotation experiments, producing a powerful tool to study the superconducting order parameter. | | | | | | Editors' Suggestion Clarisse Fournier, Kenji Watanabe, Takashi Taniguchi, Julien Barjon, Stéphanie Buil, Jean-Pierre Hermier, and Aymeric Delteil Phys. Rev. B 107, 195304 (2023) – Published 25 May 2023  | Single-photon emitters in the solid state are subject to spectral broadening processes known as spectral diffusion and pure dephasing. Here, the authors show that a combination of quantum optics techniques, namely coherent laser drive and time-resolved photon correlations, can bring both processes to light in a single experimental protocol. This allows an extensive characterization of a large variety of solid-state quantum emitters. Their method is experimentally applied to a quantum emitter in the 2D material hexagonal boron nitride, further establishing this system as an appealing quantum photonics platform. | | | | | | Editors' Suggestion Ben Z. Steinberg and Nader Engheta Phys. Rev. B 107, 195418 (2023) – Published 10 May 2023  | The omnipresence of rotation, often observed in its own rest frame of reference, profoundly affects human experience, science and technology. Here, the authors develop a formulation governing the rest frame electrodynamics in rotating electromagnetic systems and circuits. This study reveals new rotation-induced effects such as fictitious charges, gain, energy harvesting, and new device functionalities, e.g., positive or negative memristors and their dualities. These effects may potentially offer pathways to new technologies and materials. | | | | | | Editors' Suggestion Jean-Yves Desaules, Ana Hudomal, Debasish Banerjee, Arnab Sen, Zlatko Papić, and Jad C. Halimeh Phys. Rev. B 107, 205112 (2023) – Published 5 May 2023  | Quantum many-body scars (QMBSs) are a paradigm of weak ergodicity breaking with direct technological applications. The authors show that QMBSs are ubiquitous in quantum link formulations of gauge theories, opening the door to a large venue of models where QMBSs can be explored. They demonstrate that QMBSs are not an artifact of these quantum link formulations, rather, they may be an inherent feature of the ideal gauge theory itself. | | | | | | Editors' Suggestion Jiajun Li, Markus Müller, Aaram J. Kim, Andreas M. Läuchli, and Philipp Werner Phys. Rev. B 107, 205115 (2023) – Published 9 May 2023  | Numerical simulations based on dynamical mean field theory and exact diagonalization demonstrate that photodoping can induce a chiral superconducting phase in Mott insulators on geometrically frustrated lattices. This metastable phase features a phase twist between lattice sites, which breaks both time-reversal and inversion symmetry. Under an external electric pulse, the chiral superconducting state can exhibit a second-order supercurrent perpendicular to the field, similar to a nonlinear anomalous Hall effect. | | | | | | Editors' Suggestion Stefano Falletta and Alfredo Pasquarello Phys. Rev. B 107, 205125 (2023) – Published 11 May 2023  | Polarons have a large impact on transport properties of materials and on related applications in photovoltaics. This work demonstrates that enforcing the piecewise linearity condition leads to robust polaron properties upon variation of the functional. Considered properties include electron densities, lattice bonds, formation energies, hyperfine and superhyperfine parameters, hopping barriers, and transfer rates. This lends justification to the use of efficient semilocal functionals, thus paving the way to accurate and systematic studies of polaronic transport properties from first principles. | | | | | | Editors' Suggestion Michele Fossati, Filiberto Ares, and Pasquale Calabrese Phys. Rev. B 107, 205153 (2023) – Published 30 May 2023  | Non-Hermitian quantum systems display unusual features that set them apart from the Hermitian ones, yet their understanding is still very poor. Here, by studying how entanglement distributes in the symmetry sectors, the authors manage to explain one of these elusive features, namely, the origin of the nonpositiveness of the reduced density. | | | | | | Editors' Suggestion Álvaro R. Puente-Uriona, Stepan S. Tsirkin, Ivo Souza, and Julen Ibañez-Azpiroz Phys. Rev. B 107, 205204 (2023) – Published 16 May 2023  | The type-II Weyl semimetal TaIrTe4 exhibits one of the largest nonlinear photoresponses measured to date [Ma et al., Nature Materials 18, 476 (2019)]. The present work provides theoretical calculations on several competing candidate effects that can account for it. The third-order contribution known as the jerk current matches the measured magnitude of the photocurrent as well as its angular distribution. The origin of the large photoresponse is traced back to a constructive interference between the effective mass and the dipole matrix element of the Weyl bands crossing the Fermi level. | | | | | | Editors' Suggestion Letter Azize Koç, Isabel Gonzalez-Vallejo, Matthias Runge, Ahmed Ghalgaoui, Klaus Reimann, Laurenz Kremeyer, Fabian Thiemann, Michael Horn-von Hoegen, Klaus Sokolowski-Tinten, Michael Woerner, and Thomas Elsaesser Phys. Rev. B 107, L180303 (2023) – Published 23 May 2023  | Ultrafast mid-infrared excitation of an electron-hole plasma breaks the crystal symmetry of bismuth transiently and opens alternative quantum pathways for the excitation of coherent lattice motions. Probing the transient crystal structure directly by femtosecond x-ray diffraction reveals oscillations of diffracted intensity at a frequency of 2.6 THz, which persist on a picosecond time scale. They reflect coherent wave packet motions along back-folded phonon coordinates in the crystal of reduced symmetry. Optically induced symmetry breaking thus allows for modifying phonon excitations. | | | | | | Editors' Suggestion Letter Peng Li, Huiqing Ye, Yong Hu, Yuan Fang, Zhiguang Xiao, Zhongzheng Wu, Zhaoyang Shan, Ravi P. Singh, Geetha Balakrishnan, Dawei Shen, Yi-feng Yang, Chao Cao, Nicholas C. Plumb, Michael Smidman, Ming Shi, Johann Kroha, Huiqiu Yuan, Frank Steglich, and Yang Liu Phys. Rev. B 107, L201104 (2023) – Published 4 May 2023  | Competition between magnetic order and the Kondo effect is essential for the rich physics of heavy-fermion systems, but its photoemission signature remains elusive. Here, using high-resolution resonant photoemission, the authors reveal that the intensity of the 4f quasiparticle band in CeCoGe3 exhibits a clear deviation from Kondo-like behavior around the magnetic ordering temperature. The intensity begins to saturate at lower temperatures, coinciding with a change of the magnetic structure. The results demonstrate a distinct scenario for the microscopic coexistence and competition of these phenomena. | | | | | | Editors' Suggestion Letter Haiyan Fan, He Gao, Tuo Liu, Shuowei An, Xianghong Kong, Guoqiang Xu, Jie Zhu, Cheng-Wei Qiu, and Zhongqing Su Phys. Rev. B 107, L201108 (2023) – Published 9 May 2023  | Recent explorations show that the non-Hermiticity, associated with loss and/or gain, can play a surprisingly significant role in topological insulators, where the topological states can only penetrate the bulk structure if the topological phase changes in the interior. In this work, by introducing non-Hermiticity into an acoustic quadrupole topological insulator, the authors show experimentally that the topological corner and edge states could be engineered at any desired positions without a topological phase transition, making the bulk sites useful. | | | | | | | |
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