Interplay of superexchange and vibronic effects in the hidden order of from first principles
Dario Fiore Mosca, Cesare Franchini, and Leonid V. Pourovskii
Phys. Rev. B 110, L201101 (2024) - Published 4 November, 2024
In heavy transition metal oxides, electronic correlation and strong spin-orbit coupling can give rise to “hidden order”, with multipolar order parameters. Here, the authors investigate the origin of the unusual quadrupolar and magnetic phases in the double perovskite BaMgReO. They derive its low-energy Hamiltonian from first principles and show that its antiferroic order of - quadrupoles and a low-temperature canted antiferromagnetic phase emerge from the interplay between electron-lattice coupling and multipolar superexchange interactions.
High-field NMR study on the topologically nontrivial 1/3 magnetization plateau state in doped
Yuyan Han, Bocheng Yu, Zan Du, Langsheng Ling, Lei Zhang, Wei Tong, Chuanying Xi, Jinglei Zhang, Tian Shang, Li Pi, and Long Ma
Phys. Rev. B 110, L201102 (2024) - Published 5 November, 2024
Non-Hermitian quantum fractals
Junsong Sun, Chang-An Li, Qingyang Guo, Weixuan Zhang, Shiping Feng, Xiangdong Zhang, Huaiming Guo, and Björn Trauzettel
Phys. Rev. B 110, L201103 (2024) - Published 12 November, 2024
General theory for infernal points in non-Hermitian systems
Shu-Xuan Wang and Zhongbo Yan
Phys. Rev. B 110, L201104 (2024) - Published 13 November, 2024
Correlated topological mixed-valence insulators in moiré heterobilayers
Juan Felipe Mendez-Valderrama, Sunghoon Kim, and Debanjan Chowdhury
Phys. Rev. B 110, L201105 (2024) - Published 14 November, 2024
Recent experiments in moiré transition metal dichalcogenide (TMD) materials have uncovered a number of remarkable correlation-induced phases with nontrivial band topology. Here, the authors investigate topological mixed-valence and Kondo insulators in this platform at a commensurate band filling. This study highlights the distinct roles of Mottness and topology in shaping the interaction-induced phase diagram, and proposes a possible route toward realizing exotic fractionalized insulators.
Twisted coupled wire model for a moiré sliding Luttinger liquid
Yichen Hu, Yuanfeng Xu, and Biao Lian
Phys. Rev. B 110, L201106 (2024) - Published 14 November, 2024
The authors propose here a twisted bilayer 2D array in a coupled-wire model to characterize the anisotropic Luttinger Liquid behavior observed in twisted bilayer WTe. Solving this model using transfer matrix method gives quasi-1D moiré electron bands at small twist angles, which have a significantly reduced Luttinger parameter when interaction is taken into account. This indicates strong correlation effects and leads to the existence of a sliding Luttinger liquid (SLL) regime in twisted bilayer WTe.
Phase diagram of twisted bilayer in a magnetic field with an account for the electron-electron interaction
Minxuan Wang, Xiaoyu Wang, and Oskar Vafek
Phys. Rev. B 110, L201107 (2024) - Published 15 November, 2024
Temperature dependence of charge transport in the half-filled one-dimensional Hubbard model
J. M. P. Carmelo and P. D. Sacramento
Phys. Rev. B 110, L201108 (2024) - Published 15 November, 2024
Pinch-point spectral singularity from the interference of topological loop states
Masafumi Udagawa, Hiroki Nakai, and Chisa Hotta
Phys. Rev. B 110, L201109 (2024) - Published 18 November, 2024
Deconfined quantum criticality in Ising gauge theory entangled with single-component fermions
Umberto Borla, Snir Gazit, and Sergej Moroz
Phys. Rev. B 110, L201110 (2024) - Published 19 November, 2024
Investigating novel manifestations of quantum criticality is central to modern theoretical condensed matter physics. Here, the authors unveil the exotic quantum phase diagram of a two-dimensional system of single-component fermions, minimally coupled to dynamical Ising gauge fields. With state-of-the-art numerical methods, the authors detect a robust quantum critical line, where gauge confinement and translation symmetry breaking occur simultaneously. The authors conjecture a deconfined criticality scenario, and propose a corresponding low-energy effective field theory of the exotic quantum critical point.
Emerging topological characterization in nonequilibrium states of quenched Kitaev chains
Y. B. Shi, X. Z. Zhang, and Z. Song
Phys. Rev. B 110, L201111 (2024) - Published 19 November, 2024
Triplons, triplon pairs, and dynamical symmetries in laser-driven Shastry-Sutherland magnets
Mina Udono and Masahiro Sato
Phys. Rev. B 110, L201112 (2024) - Published 21 November, 2024
Supercell Wannier functions and a faithful low-energy model for Bernal bilayer graphene
Ammon Fischer, Lennart Klebl, Dante M. Kennes, and Tim O. Wehling
Phys. Rev. B 110, L201113 (2024) - Published 22 November, 2024
The authors derive here a minimal low-energy model for Bernal bilayer graphene and related rhombohedral graphene multilayers at low electronic densities. They construct valley-polarized Wannier orbitals defined in real-space supercells of the original primitive cell. By projecting realistic Coulomb interactions to the supercell Wannier basis, the authors demonstrate that Bernal bilayer graphene is in the weakly coupled regime. The resulting low-energy lattice models for rhombohedral graphene stacks pave the way for unbiased characterization of many-body phases in multilayer graphene.
Scale-invariant magnetic anisotropy in : A quantum Monte Carlo study
Toshihiro Sato, B. J. Ramshaw, K. A. Modic, and Fakher F. Assaad
Phys. Rev. B 110, L201114 (2024) - Published 22 November, 2024
Three-dimensional quantum Hall states as a chiral electromagnetic filter
Nandagopal Manoj and Valerio Peri
Phys. Rev. B 110, L201115 (2024) - Published 25 November, 2024
Distinct light-matter coupling mechanisms in : Crossover from above-gap photoexcitation to light-field dressing
Wanying Chen, Fei Wang, Tianyun Lin, Haoyuan Zhong, Shaohua Zhou, Changhua Bao, Hongyun Zhang, and Shuyun Zhou
Phys. Rev. B 110, L201116 (2024) - Published 25 November, 2024
Unveiling higher-order topology via polarized topological charges
Wei Jia, Bao-Zong Wang, Ming-Jian Gao, and Jun-Hong An
Phys. Rev. B 110, L201117 (2024) - Published 26 November, 2024
Origin of nonlinear photocurrents in chiral multifold semimetal CoSi unveiled by terahertz emission spectroscopy
Yao-Jui Chan, Syed Mohammed Faizanuddin, Raju Kalaivanan, Sankar Raman, Hsin Lin, Uddipta Kar, Akhilesh Kr. Singh, Wei-Li Lee, Ranganayakulu K. Vankayala, Min-Nan Ou, and Yu-Chieh Wen
Phys. Rev. B 110, L201118 (2024) - Published 26 November, 2024
Nonlinear photocurrents in topological semimetals encode quantum geometric characters of Bloch wavefunctions and band topology, and offer a new opportunity for advanced photovoltaics. Here, the authors characterize the nonlinear photoconductivities of chiral multifold semimetal CoSi through a refined terahertz emission spectroscopy analysis. The results reveal a large linear shift conductivity and confirm a giant nonquantized circular injection conductivity in the mid-infrared range. Bulk transverse injection currents and relatively weak photon drag effect are also identified.


















