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Twisted bilayer graphene in a parallel magnetic field

Abstract:

We study the effect of an in-plane magnetic field on the non-interacting dispersion of twisted bilayer graphene. Our analysis is rooted in the chirally symmetric continuum model, whose zero-field band structure hosts exactly flat bands and large energy gaps at the magic angles. At the first magic angle, the central bands respond to a parallel field by forming a quadratic band crossing point (QBCP) at the moire Brillouin zone center. Over a large ´ range of fields, the dispersion is invariant ...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevB.101.205116

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More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Oxford college:
Hertford College
Role:
Author
Publisher:
American Physical Society Publisher's website
Journal:
Physical review B: Condensed matter and materials physics Journal website
Volume:
101
Article number:
205116
Publication date:
2020-05-11
Acceptance date:
2020-04-21
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
Language:
English
Keywords:
Pubs id:
1100853
Local pid:
pubs:1100853
Deposit date:
2020-04-21

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