skip to main content

DOE PAGESDOE PAGES

Title: Topological crystalline magnets: Symmetry-protected topological phases of fermions

Here, we introduce a novel class of interaction-enabled topological crystalline insulators in two- and three-dimensional electronic systems, which we call “topological crystalline magnet.” It is protected by the product of the time-reversal symmetry T and a mirror symmetry or a rotation symmetry R. A topological crystalline magnet exhibits two intriguing features: (i) it cannot be adiabatically connected to any Slater insulator and (ii) the edge state is robust against coupling electrons to the edge. These features are protected by the anomalous symmetry transformation property ( RT) 2 = -1 of the edge state. Finally, an anisotropic response to the external magnetic field can be an experimental signature.
Authors:
 [1] ;  [2]
  1. Univ. of Tokyo (Japan). Department of Applied Physics
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Department of Physics
Publication Date:
Grant/Contract Number:
SC0010526
Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 95; Journal Issue: 8; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Research Org:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Strongly Correlated Electrons; Mesoscale and Nanoscale Physics; Materials Science; Other Condensed Matter
OSTI Identifier:
1424926
Alternate Identifier(s):
OSTI ID: 1345077

Watanabe, Haruki, and Fu, Liang. Topological crystalline magnets: Symmetry-protected topological phases of fermions. United States: N. p., Web. doi:10.1103/PhysRevB.95.081107.
Watanabe, Haruki, & Fu, Liang. Topological crystalline magnets: Symmetry-protected topological phases of fermions. United States. doi:10.1103/PhysRevB.95.081107.
Watanabe, Haruki, and Fu, Liang. 2017. "Topological crystalline magnets: Symmetry-protected topological phases of fermions". United States. doi:10.1103/PhysRevB.95.081107. https://www.osti.gov/servlets/purl/1424926.
@article{osti_1424926,
title = {Topological crystalline magnets: Symmetry-protected topological phases of fermions},
author = {Watanabe, Haruki and Fu, Liang},
abstractNote = {Here, we introduce a novel class of interaction-enabled topological crystalline insulators in two- and three-dimensional electronic systems, which we call “topological crystalline magnet.” It is protected by the product of the time-reversal symmetry T and a mirror symmetry or a rotation symmetry R. A topological crystalline magnet exhibits two intriguing features: (i) it cannot be adiabatically connected to any Slater insulator and (ii) the edge state is robust against coupling electrons to the edge. These features are protected by the anomalous symmetry transformation property (RT)2 = -1 of the edge state. Finally, an anisotropic response to the external magnetic field can be an experimental signature.},
doi = {10.1103/PhysRevB.95.081107},
journal = {Physical Review B},
number = 8,
volume = 95,
place = {United States},
year = {2017},
month = {2}
}

Works referenced in this record:

Colloquium: Topological insulators
journal, November 2010

Topological Insulators in Three Dimensions
journal, March 2007

Topological crystalline insulators in the SnTe material class
journal, January 2012
  • Hsieh, Timothy H.; Lin, Hsin; Liu, Junwei
  • Nature Communications, Vol. 3, Article No. 982
  • DOI: 10.1038/ncomms1969