Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session X01: Integer Quantum Hall Effect
8:00 AM–11:00 AM,
Friday, March 8, 2019
BCEC
Room: 106
Sponsoring
Unit:
DCMP
Abstract: X01.00004 : Graphene in a Uniform Magnetic Field*
8:36 AM–8:48 AM
Presenter:
Ankur Das
(University of Kentucky)
Authors:
Ankur Das
(University of Kentucky)
Ribhu Kaul
(University of Kentucky)
Ganpathy N Murthy
(University of Kentucky)
In the case of interacting graphene, there are at least three different competing phases when we consider Hubbard interaction and nearest neighbor spin-spin interaction. In the continuum limit, the theory has been studied before. It has been found that there exist four competing phases namely, ferromagnetic, antiferromagnetic, charge density wave, and Kekule distortion phase[1]. In our study, we attempt to understand all the phases in the lattice model. We investigate if there are phases in the lattice model not found in the continuum limit.
[1] M. Kharitonov, PRB 85, 155439(2012)
*We thank NSF DMR-1611161 & DMR-1306897
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