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Colloquium: Quantum anomalous Hall effect

Journal Article · · Reviews of Modern Physics
 [1];  [2];  [3]
  1. Pennsylvania State Univ., University Park, PA (United States); University of Texas at Austin
  2. Pennsylvania State Univ., University Park, PA (United States)
  3. Univ. of Texas, Austin, TX (United States)
The quantum Hall (QH) effect, quantized Hall resistance combined with zero longitudinal resistance, is the characteristic experimental fingerprint of Chern insulators—topologically nontrivial states of two-dimensional matter with broken time-reversal symmetry. In Chern insulators, nontrivial bulk band topology is expressed by chiral states that carry current along sample edges without dissipation. Here, the quantum anomalous Hall (QAH) effect refers to QH effects that occur in the absence of external magnetic fields due to spontaneously broken time-reversal symmetry. The QAH effect has now been realized in four different classes of two-dimensional materials: (i) thin films of magnetically (Cr- and/or V-) doped topological insulators in the (Bi,Sb)2T3 family, (ii) thin films of the intrinsic magnetic topological insulator MnBi2Te4, (iii) moiré materials formed from graphene, and (iv) moiré materials formed from transition-metal dichalcogenides. In this Colloquium, the physical mechanisms responsible for each class of QAH insulator are reviewed, with both differences and commonalities highlighted, and potential applications of the QAH effect are commented upon.
Research Organization:
Univ. of Texas, Austin, TX (United States); University of Texas, Austin, TX (United States)
Sponsoring Organization:
AFOSR; Army Research Office (ARO); DE-SC0022106; Gordon and Betty Moore Foundation’s EPiQS Initiative; NSF-MRSEC; USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0019064; SC0019481; SC0022106; SC0023113
OSTI ID:
1968228
Alternate ID(s):
OSTI ID: 2437701
OSTI ID: 1968946
Journal Information:
Reviews of Modern Physics, Journal Name: Reviews of Modern Physics Journal Issue: 1 Vol. 95; ISSN 0034-6861
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Fractional Chern insulator states in twisted bilayer graphene: An analytical approach journal May 2020
Chern bands of twisted bilayer graphene: Fractional Chern insulators and spin phase transition journal May 2020
Distinct Topological Surface States on the Two Terminations of MnBi 4 Te 7 journal July 2020
Distinct Quantum Anomalous Hall Ground States Induced by Magnetic Disorders journal December 2020
Odd-Even Layer-Number Effect and Layer-Dependent Magnetic Phase Diagrams in MnBi 2 Te 4 journal January 2021
Site Mixing for Engineering Magnetic Topological Insulators journal May 2021
Evidence for a Magnetic-Field-Induced Ideal Type-II Weyl State in Antiferromagnetic Topological Insulator Mn ( Bi 1 − x Sb x ) 2 Te 4 journal August 2021
Quantum Anomalous Hall Effect from Inverted Charge Transfer Gap journal May 2022
Origin of Mott Insulating Behavior and Superconductivity in Twisted Bilayer Graphene journal September 2018
Failure of Nielsen-Ninomiya Theorem and Fragile Topology in Two-Dimensional Systems with Space-Time Inversion Symmetry: Application to Twisted Bilayer Graphene at Magic Angle journal April 2019
Quantum Valley Hall Effect, Orbital Magnetism, and Anomalous Hall Effect in Twisted Multilayer Graphene Systems journal August 2019
Gapless Surface Dirac Cone in Antiferromagnetic Topological Insulator MnBi 2 Te 4 journal November 2019
Dirac Surface States in Intrinsic Magnetic Topological Insulators EuSn 2 As 2 and MnBi 2 n Te 3 n + 1 journal November 2019
Topological Electronic Structure and Its Temperature Evolution in Antiferromagnetic Topological Insulator MnBi 2 Te 4 journal November 2019
Topological Electronic Structure and Intrinsic Magnetization in MnBi 4 Te 7 : A Bi 2 Te 3 Derivative with a Periodic Mn Sublattice journal December 2019
Exchange Interactions journal January 1953
Models of Exchange Coupling in Ferromagnetic Media journal January 1953
Scaling theory of the integer quantum Hall effect journal April 1995
The fractional quantum Hall effect journal March 1999
Theory of ferromagnetic (III,Mn)V semiconductors journal August 2006
Non-Abelian anyons and topological quantum computation journal September 2008
The electronic properties of graphene journal January 2009
Anomalous Hall effect journal May 2010
First-principles theory of dilute magnetic semiconductors journal May 2010
Berry phase effects on electronic properties journal July 2010
Colloquium: Topological insulators journal November 2010
Topological insulators and superconductors journal October 2011
Dilute ferromagnetic semiconductors: Physics and spintronic structures journal March 2014
Visualization of superparamagnetic dynamics in magnetic topological insulators journal November 2015
Large discrete jumps observed in the transition between Chern states in a ferromagnetic topological insulator journal July 2016
Above 400-K robust perpendicular ferromagnetic phase in a topological insulator journal June 2017
Tailoring tricolor structure of magnetic topological insulator for robust axion insulator journal October 2017
New classes of topological crystalline insulators having surface rotation anomaly journal December 2019
Gate tuning from exciton superfluid to quantum anomalous Hall in van der Waals heterobilayer journal January 2019
Intrinsic magnetic topological insulators in van der Waals layered MnBi 2 Te 4 -family materials journal June 2019
Natural van der Waals heterostructural single crystals with both magnetic and topological properties journal November 2019
Realization of an intrinsic ferromagnetic topological state in MnBi 8 Te 13 journal July 2020
Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells journal December 2006
Quantum Spin Hall Insulator State in HgTe Quantum Wells journal November 2007
Experimental Realization of a Three-Dimensional Topological Insulator, Bi2Te3 journal June 2009
Quantized Anomalous Hall Effect in Magnetic Topological Insulators journal June 2010
Massive Dirac Fermion on the Surface of a Magnetically Doped Topological Insulator journal August 2010
Signatures of Majorana Fermions in Hybrid Superconductor-Semiconductor Nanowire Devices journal April 2012
Topology-Driven Magnetic Quantum Phase Transition in Topological Insulators journal March 2013
Experimental Observation of the Quantum Anomalous Hall Effect in a Magnetic Topological Insulator journal March 2013
Observation of Majorana fermions in ferromagnetic atomic chains on a superconductor journal October 2014
Quantized Faraday and Kerr rotation and axion electrodynamics of a 3D topological insulator journal December 2016
Chiral Majorana fermion modes in a quantum anomalous Hall insulator–superconductor structure journal July 2017
Distinguishing a Majorana zero mode using spin-resolved measurements journal October 2017
Quantized chiral edge conduction on domain walls of a magnetic topological insulator journal December 2017
Evidence for Majorana bound states in an iron-based superconductor journal August 2018
A valley valve and electron beam splitter journal December 2018
Twistable electronics with dynamically rotatable heterostructures journal August 2018
Tuning superconductivity in twisted bilayer graphene journal January 2019
Discovery of topological Weyl fermion lines and drumhead surface states in a room temperature magnet journal September 2019
Fermi-arc diversity on surface terminations of the magnetic Weyl semimetal Co 3 Sn 2 S 2 journal September 2019
Magnetic Weyl semimetal phase in a Kagomé crystal journal September 2019
Emergent ferromagnetism near three-quarters filling in twisted bilayer graphene journal July 2019
Absence of evidence for chiral Majorana modes in quantum anomalous Hall-superconductor devices journal January 2020
Quantum anomalous Hall effect in intrinsic magnetic topological insulator MnBi 2 Te 4 journal January 2020
Intrinsic quantized anomalous Hall effect in a moiré heterostructure journal December 2019
Tuning electron correlation in magic-angle twisted bilayer graphene using Coulomb screening journal March 2021
Imaging orbital ferromagnetism in a moiré Chern insulator journal June 2021
Spin-orbit–driven ferromagnetism at half moiré filling in magic-angle twisted bilayer graphene journal January 2022
Resistance metrology based on the quantum Hall effect journal June 2009
Theory of Orbital Magnetization in Solids journal April 2011
A Theory of Metallic Ferro- and Antiferromagnetism on Zener's Model journal July 1956
Search for Majorana Fermions in Superconductors journal April 2013
The Quantum Anomalous Hall Effect: Theory and Experiment journal March 2016
Topological Materials: Quantum Anomalous Hall System journal March 2018
On the new action of magnetism on a permanent electric current journal September 1880
Electrically-driven Domain Wall Motion in Quantum Anomalous Hall States journal August 2019
Possible States for a Three-Dimensional Electron Gas in a Strong Magnetic Field journal January 1987