Cited by Extended quantum anomalous Hall effect in moiré structures: Phase transitions and transport

Excitonic quantum criticality: From multilayer graphene to narrow Chern bands DOI

Zhengyan Darius Shi, Hart Goldman,

Zhihuan Dong

et al.

Physical review. B./Physical review. B, Journal Year: 2025, Volume and Issue: 111(12)

Published: March 25, 2025

Language: Английский

Citations

Tunable fractional Chern insulators in rhombohedral graphene superlattices DOI

Jian Xie,

Zihao Huo, Xin Lü

et al.

Nature Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Language: Английский

Citations

Direct magnetic imaging of fractional Chern insulators in twisted MoTe2 DOI

Evgeny Redekop,

Canxun Zhang, Heonjoon Park

et al.

Nature, Journal Year: 2024, Volume and Issue: 635(8039), P. 584 - 589

Published: Nov. 20, 2024

Language: Английский

Citations

Single-particle spectral function of fractional quantum anomalous Hall states DOI

Fabian Pichler, Wilhelm Kadow, Clemens Kuhlenkamp

et al.

Physical review. B./Physical review. B, Journal Year: 2025, Volume and Issue: 111(7)

Published: Feb. 4, 2025

Fractional quantum Hall states are the most prominent example of with topological order, hosting excitations fractionalized charge. Recent experiments in twisted MoTe2 and graphene-based heterostructures provided evidence fractional anomalous (FQAH) states, which spontaneously break time-reversal symmetry persist even without an external magnetic field. Understanding unique properties these requires characterization their low-energy excitations. To that end, we construct a parton theory for energy- momentum-resolved single-particle spectral function FQAH states. We explicitly consider several experimentally observed filling fractions as well composite Fermi liquid half-filled Chern band. Charge fractionalization manifests itself nearly momentum-independent spectra characteristic series peaks determined from fraction. The description qualitatively captures our numerical exact diagonalization results. Additionally, discuss how finite bandwidth band nonideal geometry affect Our work demonstrates electronic provides valuable tool to characterize moiré lattices. Published by American Physical Society 2025

Language: Английский

Citations

Fractional quantum anomalous Hall effect in rhombohedral multilayer graphene with a strong displacement field DOI

Ke Huang, S. Das Sarma, Xiao Li

et al.

Physical review. B./Physical review. B, Journal Year: 2025, Volume and Issue: 111(7)

Published: Feb. 13, 2025

Language: Английский

Citations

Charge ordering and spontaneous topological Hall effect in bilayer skyrmion crystals DOI

Andrew Hardy, Anjishnu Bose,

Tarun Grover

et al.

Physical review. B./Physical review. B, Journal Year: 2025, Volume and Issue: 111(11)

Published: March 5, 2025

Language: Английский

Citations

Electric-Field Switchable Chirality in Rhombohedral Graphene Chern Insulators Stabilized by Tungsten Diselenide DOI

Jing Ding,

Hanxiao Xiang,

Jiannan Hua

et al.

Physical Review X, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 10, 2025

Chern insulators host topologically protected chiral edge currents with quantized conductance characterized by their number. Switching the chirality of a insulator, namely, direction current, is highly challenging due to forbidden backscattering but considerable importance for design topological devices. Nevertheless, this can be achieved reversing sign Here, we report electrically switchable in rhombohedral multilayer graphene-based through phase transition. By introducing moiré superlattices heptalayer graphene, observe cascade transitions at quarter electron filling band number tunable from −1, 1, 2. Furthermore, integrating monolayer tungsten diselenide moiréless interface decalayer graphene and hexagonal boron nitride stabilizes insulators, enabling anomalous Hall resistance h/2e2. Remarkably, switched using displacement fields, leading transition −1 Our work establishes as versatile platform engineering, offering significant promise into electronic circuits. Published American Physical Society 2025

Language: Английский

Citations

Valley-dependent giant orbital moments and transport features in rhombohedral graphene multilayers DOI

Xingchi Mu,

Jian Zhou

Physical review. B./Physical review. B, Journal Year: 2025, Volume and Issue: 111(16)

Published: April 1, 2025

Language: Английский

Citations

Broken symmetry in ideal Chern bands DOI

Hui Liu, Kang Yang, Ahmed Abouelkomsan

et al.

Physical review. B./Physical review. B, Journal Year: 2025, Volume and Issue: 111(20)

Published: May 9, 2025

Recent observations of the fractional anomalous quantum Hall effect in moiré materials have reignited interest Chern insulators (FCIs). The chiral limit which analytic Landau-level-like single-particle states form an “ideal” band and local interactions lead to Laughlin-like FCIs at 1/3 filling has been very useful for understanding these systems by relating them lowest Landau level. We show, however, that, even idealized limit, a fluctuating geometry is associated with strongly broken symmetries phenomenology different from that levels. In particular, particle-hole symmetry violated and, e.g., 2/3 emergent interaction driven Fermi liquid state no level counterpart energetically favored. fact, exact zero modes 1/3 nonuniform density tracking underlying geometry. Switching Coulomb interaction, ideal electron 1/4 features trivial charge wave states. Moreover, applying transformation reveals hole 3/4 supports crystal quantized conductance e2/h. These phenomena direct counterpart. Published American Physical Society 2025

Language: Английский

Citations

Fractional Quantum Anomalous Hall Effect in a Singular Flat Band DOI

Wenqi Yang, Dawei Zhai, Tixuan Tan

et al.

Physical Review Letters, Journal Year: 2025, Volume and Issue: 134(19)

Published: May 12, 2025

Language: Английский

Citations