Artificial gauge fields and topological insulators in Moire superlattices

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Type
Preprint
Authors
Shang, Ce
Abbout, Adel
Zang, Xiaoning cc
Schwingenschlögl, Udo cc
Manchon, Aurelien cc
KAUST Department
Computational Physics and Materials Science (CPMS)
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Spintronics Theory Group
Date
2019-12-01
Permanent link to this record
http://hdl.handle.net/10754/660735

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Abstract
We propose an innovative quantum emulator based on Moire superlattices showing that, by employing periodical modulation on each lattice site, one can create tunable, artificial gauge fields with imprinting Peierls phases on the hopping parameters and realize an analog of novel Haldane-like phase. As an application, we provide a methodology to directly quantify the topological invariant in such a system from a dynamical quench process. This design shows a robustly integrated platform which opens a new door to investigate topological physics.
Sponsors
The authors acknowledge financial support from the King Abdullah University of Science and Technology (KAUST).
Publisher
arXiv
arXiv
1912.00447
Additional Links
https://arxiv.org/pdf/1912.00447
Collections
Preprints; Physical Science and Engineering (PSE) Division; Spintronics Theory Group; Material Science and Engineering Program; Computational Physics and Materials Science (CPMS)