TY - JOUR
T1 - Quantum Anomalous Parity Hall Effect in Magnetically Disordered Topological Insulator Films
AU - Haim, Arbel
AU - Ilan, Roni
AU - Alicea, Jason
N1 - Publisher Copyright:
© 2019 American Physical Society.
PY - 2019/7/22
Y1 - 2019/7/22
N2 - In magnetically doped thin-film topological insulators, aligning the magnetic moments generates a quantum anomalous Hall phase supporting a single chiral edge state. We show that as the system demagnetizes, disorder from randomly oriented magnetic moments can produce a "quantum anomalous parity Hall" phase with helical edge modes protected by a unitary reflection symmetry. We further show that introducing superconductivity, combined with selective breaking of reflection symmetry by a gate, allows for creation and manipulation of Majorana zero modes via purely electrical means and at zero applied magnetic field.
AB - In magnetically doped thin-film topological insulators, aligning the magnetic moments generates a quantum anomalous Hall phase supporting a single chiral edge state. We show that as the system demagnetizes, disorder from randomly oriented magnetic moments can produce a "quantum anomalous parity Hall" phase with helical edge modes protected by a unitary reflection symmetry. We further show that introducing superconductivity, combined with selective breaking of reflection symmetry by a gate, allows for creation and manipulation of Majorana zero modes via purely electrical means and at zero applied magnetic field.
UR - https://www.scopus.com/pages/publications/85069964906
U2 - 10.1103/PhysRevLett.123.046801
DO - 10.1103/PhysRevLett.123.046801
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AN - SCOPUS:85069964906
SN - 0031-9007
VL - 123
JO - Physical Review Letters
JF - Physical Review Letters
IS - 4
M1 - 046801
ER -