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39 papers · 1 filter
Probing Quantum Anomalous Hall States in Twisted Bilayer WSe2 via Attractive Polaron Spectroscopy
Beini Gao, Mahdi Ghafariasl, Mahmoud Jalali Mehrabad +15
Moiré superlattices in semiconductors exhibit a rich variety of interaction-induced topological states, including quantum anomalous Hall (QAH) effects. A recent study hinted that t…
Terahertz high-harmonic generation in gapped antiferromagnetic chains
Mohsen Yarmohammadi, Michael H. Kolodrubetz
The nonlinear dynamics of magnetization in antiferromagnets, resulting in high-frequency spin waves (high-order harmonics) as signal carriers, enable fast magnetic state switching…
Self-consistent theory for the fractional quantum anomalous Hall effect in rhombohedral pentalayer graphene
Ke Huang, Xiao Li, Sankar Das Sarma +1
The fractional quantum anomalous Hall (FQAH) effect in rhombohedral pentalayer graphene (PLG) has attracted significant attention due to its potential for observing exotic quantum…
Spin high-harmonic generation through terahertz laser-driven phonons
Negin Moharrami Allafi, Michael H. Kolodrubetz, Marin Bukov +2
In the realm of open quantum systems, steady states and high-harmonic generation (HHG) existing far from equilibrium have become core pillars of ultrafast science. Most solid-state…
Zeno physics of the Ising chain with symmetry-breaking boundary dephasing
Umar Javed, Riccardo J. Valencia-Tortora, Jamir Marino +2
In few-qubit systems, the quantum Zeno effect arises when measurement occurs sufficiently frequently that the spins are unable to relax between measurements. This can compete with…
Ultrafast dynamics of a fermion chain in a terahertz field-driven optical cavity
Mohsen Yarmohammadi, John Sous, Marin Bukov +1
We study the effect of a terahertz field-driven single cavity mode for ultrafast control of a fermion chain with dissipation-induced nonlinearity and quadratic coupling to an infra…
Nonequilibrium phononic first-order phase transition in a driven fermion chain
Mohsen Yarmohammadi, Marin Bukov, Michael H. Kolodrubetz
We study the direct laser drive of infrared-active phonons that are quadratically coupled to a spinless fermion chain. Feedback is incorporated by phonon dressing of the electronic…
Charge order induced Dirac pockets in the nonsymmorphic crystal TaTe
Yichen Zhang, Ruixiang Zhou, Hanlin Wu +14
The interplay between charge order (CO) and nontrivial band topology has spurred tremendous interest in understanding topological excitations beyond the single-particle description…
Strong-coupling magnetophononics: Self-blocking, phonon-bitriplons, and spin-band engineering
M. Yarmohammadi, M. Krebs, G. S. Uhrig +1
Magnetophononics, the modulation of magnetic interactions by driving infrared-active lattice excitations, is emerging as a key mechanism for the ultrafast dynamical control of both…
Noncollinear twisted RKKY interaction on the optically driven SnTe(001) surface
Mohsen Yarmohammadi, Marin Bukov, Michael H. Kolodrubetz
The nontrivial spin texture on the (001) surface of topological crystalline insulator SnTe hosts exotic scientific importance and spintronic applications. Here, we study the effect…
Transport anomalies in the layered compound BaPt4Se6
Sheng Li, Yichen Zhang, Hanlin Wu +11
We report a layered ternary selenide BaPt4Se6 featuring sesqui-selenide Pt2Se3 layers sandwiched by Ba atoms. The Pt2Se3 layers in this compound can be derived from the Dirac-semim…
Antiferromagnetic Order and Spin-Canting Transition in the Corrugated Square Net Compound Cu(TeO)(SO)HO
Zhi-Cheng Wang, Kulatheepan Thanabalasingam, Jan P. Scheifers +7
Strongly correlated electrons in layered perovskite structures have been the birthplace of high-temperature superconductivity, spin liquid, and quantum criticality. Specifically, t…
Canted Antiferromagnetism in the Quasi-1D Iron Chalcogenide BaFeSe
Xiaoyuan Liu, Keith M. Taddei, Sheng Li +6
We report the synthesis and physical properties studies of quais-1D iron chalcogenide which shares the tetrahedra building motif commonly seen in the…
Multiple Dirac Nodes and Symmetry Protected Dirac Nodal Line in Orthorhombic -RhSi
Shirin Mozaffari, Niraj Aryal, Rico Schönemann +6
Owing to their chiral cubic structure, exotic multifold topological excitations have been predicted and recently observed in transition metal silicides like -RhSi. Herein, we re…
Superconductivity in the regime of attractive interactions in the Tomonaga-Luttinger liquid
Ž. Gosar, N. Janša, T. Arh +5
While the vast majority of known physical realizations of the Tomonaga-Luttinger liquid (TLL) have repulsive interactions defined with the dimensionless interaction parameter $K_{\…
Complex Transport and Magnetism in Inhomogeneous Mixed Valence CeIrGe
A. M. Hallas, C. L. Huang, Binod K. Rai +6
We report the discovery of CeIrGe, a new Remeika phase compound with a complex array of structural, electronic, and magnetic properties. Our single crystal x-ray dif…
Hidden spin-orbital order in the Kitaev hyperhoneycomb -LiIrO
Alejandro Ruiz, Vikram Nagarajan, Mayia Vranas +8
We report the existence of a phase transition at high temperature in the 3D Kitaev candidate material, -LiIrO. We show that the transition is bulk, intrinsic and orders…
Origin of the butterfly magnetoresistance in a Dirac nodal-line system
Y. -C. Chiu, K. -W. Chen, R. Schönemann +12
We report a study on the magnetotransport properties and on the Fermi surfaces (FS) of the ZrSi(Se,Te) semimetals. Density Functional Theory (DFT) calculations, in absence of spin…
Moiré Band Topology in Twisted Bilayer Graphene
Chao Ma, Qiyue Wang, Scott Mills +9
Recently twisted bilayer graphene (t-BLG) emerges as a new strongly correlated physical platform near a magic twist angle, which hosts many exciting phenomena such as the Mott-like…
Ferromagnetic ordering along the hard axis in the Kondo lattice YbIr3Ge7
Binod K. Rai, Macy Stavinoha, J. Banda +7
Ferromagnetic Kondo lattice compounds are far less common than their antiferromagnetic analogs. In this work, we report the discovery of a new ferromagnetic Kondo lattice compound,…
Quantum Anomalous Hall Phase Stabilized via Realistic Interactions on a Kagome Lattice
Yafei Ren, T. -S. Zeng, W. Zhu +1
We study the quantum phases of spinless fermion at one-third filling on a Kagome lattice featuring a quadratic band touching Fermi point. In the presence of weak first and second n…
Low-carrier density and fragile magnetism in a Kondo lattice system
Binod K. Rai, Iain W. H. Oswald, Wenjing Ban +17
Kondo-based semimetals and semiconductors are of extensive current interest as a viable platform for strongly correlated states. It is thus important to understand the routes towar…
Tunning topological phase and quantum anomalous Hall effect by interaction in quadratic band touching systems
Tian-sheng Zeng, W. Zhu, D. N. Sheng
Interaction driven topological phases can significantly enrich the class of topological materials and thus are of great importance. Here, we study the phase diagram of interacting…
Detailed study on the Fermi surfaces of the type-II Dirac semimetallic candidates PdTe2 and PtTe2
W. Zheng, R. Schönemann, N. Aryal +11
We present a detailed quantum oscillatory study on the Dirac type-II semimetallic candidates PdTe and PtTe \emph{via} the temperature and the angular dependence of the…