Origin of gaplike behaviors in : Combined study via quasiparticle scattering spectroscopy and resistivity measurements
S. Zhang, G. Chappell, N. Pouse, R. E. Baumbach, M. B. Maple, L. H. Greene, and W. K. Park
Phys. Rev. B 102, 081101(R) (2020) - Published 3 August, 2020
Strong in-plane anisotropy in the electronic structure of fixed-valence
Pascal Reiss, Jordan Baglo, Hong'En Tan, Xiaoye Chen, Sven Friedemann, Kentaro Kuga, F. Malte Grosche, Satoru Nakatsuji, and Michael Sutherland
Phys. Rev. B 102, 081102(R) (2020) - Published 3 August, 2020
Electronic localization in twisted bilayer with small rotation angle
Somepalli Venkateswarlu, Andreas Honecker, and Guy Trambly de Laissardière
Phys. Rev. B 102, 081103(R) (2020) - Published 5 August, 2020
Thermal effects versus spin nematicity in a frustrated spin- chain
M. Pregelj, A. Zorko, D. Arčon, M. Klanjšek, O. Zaharko, S. Krämer, M. Horvatić, and A. Prokofiev
Phys. Rev. B 102, 081104(R) (2020) - Published 5 August, 2020
Molecular Mott state in the deficient spinel
Heung-Sik Kim, Kristjan Haule, and David Vanderbilt
Phys. Rev. B 102, 081105(R) (2020) - Published 6 August, 2020
Robust atomic orbital in the cluster magnet
N. Katayama, H. Takeda, T. Yamaguchi, Y. Yamada, K. Iida, M. Takigawa, Y. Ohta, and H. Sawa
Phys. Rev. B 102, 081106(R) (2020) - Published 7 August, 2020
Tunable interlayer magnetism and band topology in van der Waals heterostructures of -family materials
Zhe Li, Jiaheng Li, Ke He, Xiangang Wan, Wenhui Duan, and Yong Xu
Phys. Rev. B 102, 081107(R) (2020) - Published 11 August, 2020
Doping effects on electronic states in electron-doped FeSe: Impact of self-energy and vertex corrections
Youichi Yamakawa, Seiichiro Onari, and Hiroshi Kontani
Phys. Rev. B 102, 081108(R) (2020) - Published 11 August, 2020
Four-dimensional semimetals with tensor monopoles: From surface states to topological responses
Yan-Qing Zhu, Nathan Goldman, and Giandomenico Palumbo
Phys. Rev. B 102, 081109(R) (2020) - Published 13 August, 2020
The Mott transition as a topological phase transition
Sudeshna Sen, Patrick J. Wong, and Andrew K. Mitchell
Phys. Rev. B 102, 081110(R) (2020) - Published 14 August, 2020
The Mott transition is a classic paradigm in quantum many-body physics, in which electronic interactions can produce an insulating state. By contrast, a nontrivial band-structure topology in condensed matter systems leads to a topological insulator. Here, the authors make a connection between the seemingly disparate physics of these systems, showing that the Mott transition can be understood as a topological transition, and the Mott insulating state manifests a hitherto hidden topology in the interaction self-energy.
Optical spectra of rare-earth nickelates
Jordan Bieder, Alain Mercy, Wen-Yi Tong, and Philippe Ghosez
Phys. Rev. B 102, 081111(R) (2020) - Published 17 August, 2020
Soluble fermionic quantum critical point in two dimensions
Shouryya Ray, Matthias Vojta, and Lukas Janssen
Phys. Rev. B 102, 081112(R) (2020) - Published 17 August, 2020
Shift photovoltaic current and magnetically induced bulk photocurrent in piezoelectric sillenite crystals
Aaron M. Burger, Lingyuan Gao, Radhe Agarwal, Alexey Aprelev, Jonathan E. Spanier, Andrew M. Rappe, and Vladimir M. Fridkin
Phys. Rev. B 102, 081113(R) (2020) - Published 18 August, 2020
Giant nonlocality in nearly compensated two-dimensional semimetals
S. Danz, M. Titov, and B. N. Narozhny
Phys. Rev. B 102, 081114(R) (2020) - Published 18 August, 2020
Emergent Fermi surface in a many-body non-Hermitian fermionic chain
Sen Mu, Ching Hua Lee, Linhu Li, and Jiangbin Gong
Phys. Rev. B 102, 081115(R) (2020) - Published 19 August, 2020
Fermion accumulation due to asymmetric pumping in a one-dimensional chain is found not only to resemble a Fermi surface in real space, but also to behave like a genuine Fermi surface in its entropy scaling behavior. Nearest-neighbor repulsion is also found to induce competing charge density waves that may erode the real-space Fermi surface. The underlying physics surrounding criticality and localization is further analyzed with complex spectral flows, highlighting the interplay between quantum degenerate pressure, non-Hermitian pumping, and many-body effects.
Absence of a giant Rashba effect in the valence band of lead halide perovskites
M. Sajedi, M. Krivenkov, D. Marchenko, A. Varykhalov, J. Sánchez-Barriga, E. D. L. Rienks, and O. Rader
Phys. Rev. B 102, 081116(R) (2020) - Published 21 August, 2020
The high efficiency of lead halide perovskite solar cells is revolutionizing photovoltaics and, at the same time, puzzling the scientific community. Here, the authors take up the prediction that a large Rashba-type spin-orbit effect slows down carrier recombination. From their experiments on organic perovskites, they conclude that this effect is much smaller than so far believed. For the inorganic CsPbBr perovskite, they probe the electron spin and reduce the upper limit for a Rashba effect by two orders of magnitude.
Phonon-mediated dimensional crossover in bilayer
M. Rodriguez-Vega, Ze-Xun Lin, A. Leonardo, A. Ernst, G. Chaudhary, M. G. Vergniory, and Gregory A. Fiete
Phys. Rev. B 102, 081117(R) (2020) - Published 21 August, 2020
Time-reversal symmetry breaking versus chiral symmetry breaking in twisted bilayer graphene
J. González and T. Stauber
Phys. Rev. B 102, 081118(R) (2020) - Published 25 August, 2020
Dynamical symmetry breaking is a mechanism by which a strong Coulomb interaction can give mass and open a gap in the spectrum of Dirac-like quasiparticles. The authors demonstrate that the large interaction strength in twisted bilayer graphene leads actually to a competition between the breakdown of chiral symmetry and time-reversal symmetry, with a gap being generated by the Dirac and the Haldane masses, respectively. They find quite an abrupt transition between the two phases, indicating the existence of a quantum critical point at the magic angle of twisted bilayer graphene.
Manifestation of strong correlations in transport in ultraclean SiGe/Si/SiGe quantum wells
A. A. Shashkin, M. Yu. Melnikov, V. T. Dolgopolov, M. M. Radonjić, V. Dobrosavljević, S.-H. Huang, C. W. Liu, Amy Y. X. Zhu, and S. V. Kravchenko
Phys. Rev. B 102, 081119(R) (2020) - Published 26 August, 2020
Symmetry-protected topological phases beyond groups: The -deformed Affleck-Kennedy-Lieb-Tasaki model
Thomas Quella
Phys. Rev. B 102, 081120(R) (2020) - Published 26 August, 2020
Symmetry-protected topological phases are defined and classified in reference to symmetries that are described by groups. The author argues that there exist such phases that are not captured by this classification. To support this claim a -deformation of the Affleck-Kennedy-Lieb-Tasaki model is discussed, which exhibits quantum group and duality-type symmetries but breaks all standard group symmetries known to protect the Haldane phase. Its nontrivial topology is linked to a twofold degeneracy in a suitably deformed notion of entanglement spectrum.
High-harmonic generation in spin-orbit coupled systems
Markus Lysne, Yuta Murakami, Michael Schüler, and Philipp Werner
Phys. Rev. B 102, 081121(R) (2020) - Published 26 August, 2020
Impact of exciton delocalization on exciton-vibration interactions in organic semiconductors
Antonios M. Alvertis, Raj Pandya, Loreta A. Muscarella, Nipun Sawhney, Malgorzata Nguyen, Bruno Ehrler, Akshay Rao, Richard H. Friend, Alex W. Chin, and Bartomeu Monserrat
Phys. Rev. B 102, 081122(R) (2020) - Published 31 August, 2020










