Bulletin of the American Physical Society
APS March Meeting 2018
Volume 63, Number 1
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session A10: Dirac/Weyl Semimetals -- Disorder and Novel Phenomena
8:00 AM–10:48 AM,
Monday, March 5, 2018
LACC
Room: 301B
Sponsoring
Unit:
DMP
Chair: Jed Pixley, Rutgers University
Abstract ID: BAPS.2018.MAR.A10.11
Abstract: A10.00011 : Localization and chiral magnetic effect in quantum diffusive Weyl semimetals*
10:24 AM–10:36 AM
Presenter:
Chung-Yu Mou
(Physics Department, Natl Tsing Hua Univ)
Authors:
Chung-Yu Mou
(Physics Department, Natl Tsing Hua Univ)
Yen-Ting Lin
(Physics Department, Natl Tsing Hua Univ)
Liang-Jun Zhai
(The School of Mathematics and Physics, Jiangsu University of Technology)
(CME) in Weyl semimetals. Based on a minimum two-band model of
the Weyl semimetal, the disorder effect is examined in the quantum
diffusion limit by considering the correction to the CME coefficient due
to the Cooperon channel. It is shown that instead of contributing
through diffusive propagation, the contribution of Cooperon to the CME
coefficient is governed by the sub-diffusive propagation. As a result, unlike
the weak localization and weak antilocalization effects observed in Dirac
fermions, we find that the CME coefficients of finite systems manifest
scalings of strong localization even in three dimension. Our results indicate
that while the chiral magnetic current due to slowly oscillating magnetic fields
can exist in clean systems, it will be strongly suppressed by disorders in
condensed matter systems.
*Y. T. Lin and C. Y. Mou ackmowledge support from the Ministry of Science
and Technology (MoST),Taiwan. L. J. Zhai acknowledges support from
National Science Foundation of China (Grant No. 11704161). We also
acknowledge support from TCECM and Academia Sinica Research Program
on. Nanoscienc
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.MAR.A10.11
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