Effect of Interactions on the Quantization of the Chiral Photocurrent for Double-Weyl Semimetals

被引:27
作者
Mandal, Ipsita [1 ]
机构
[1] Univ Stavanger, Fac Sci & Technol, N-4036 Stavanger, Norway
来源
SYMMETRY-BASEL | 2020年 / 12卷 / 06期
关键词
circular photogalvanic effect; double-Weyl semimetals; quantization;
D O I
10.3390/sym12060919
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The circular photogalvanic effect (CPGE) is the photocurrent generated in an optically active material in response to an applied AC electric field, and it changes sign depending on the chirality of the incident circularly polarized light. It is a non-linear DC current as it is second order in the applied electric field, and for a certain range of low frequencies, takes on a quantized value proportional to the topological charge for a system which is a source of non-zero Berry flux. We show that for a non-interacting double-Weyl node, the CPGE is proportional to two quanta of Berry flux. On examining the effect of short-ranged Hubbard interactions up to first-order corrections, we find that this quantization is destroyed. This implies that unlike the quantum Hall effect in gapped phases or the chiral anomaly in field theories, the quantization of the CPGE in topological semimetals is not protected.
引用
收藏
页数:9
相关论文
共 21 条
[1]  
[Anonymous], 1974, Journal of Experimental and Theoretical Physics
[2]   Interactions Remove the Quantization of the Chiral Photocurrent at Weyl Points [J].
Avdoshkin, Alexander ;
Kozii, Vladyslav ;
Moore, Joel E. .
PHYSICAL REVIEW LETTERS, 2020, 124 (19)
[3]   NONLINEAR-OPTICAL SUSCEPTIBILITIES OF SEMICONDUCTORS - RESULTS WITH A LENGTH-GAUGE ANALYSIS [J].
AVERSA, C ;
SIPE, JE .
PHYSICAL REVIEW B, 1995, 52 (20) :14636-14645
[4]   Tight-Binding Modeling and Low-Energy Behavior of the Semi-Dirac Point [J].
Banerjee, S. ;
Singh, R. R. P. ;
Pardo, V. ;
Pickett, W. E. .
PHYSICAL REVIEW LETTERS, 2009, 103 (01)
[5]   Quantized circular photogalvanic effect in Weyl semimetals [J].
de Juan, Fernando ;
Grushin, Adolfo G. ;
Morimoto, Takahiro ;
Moore, Joel E. .
NATURE COMMUNICATIONS, 2017, 8
[6]   Multi-Weyl Topological Semimetals Stabilized by Point Group Symmetry [J].
Fang, Chen ;
Gilbert, Matthew J. ;
Dai, Xi ;
Bernevig, B. Andrei .
PHYSICAL REVIEW LETTERS, 2012, 108 (26)
[7]   Zero modes of tight-binding electrons on the honeycomb lattice [J].
Hasegawa, Yasumasa ;
Konno, Rikio ;
Nakano, Hiroki ;
Kohmoto, Mahito .
PHYSICAL REVIEW B, 2006, 74 (03)
[8]   New type of Weyl semimetal with quadratic double Weyl fermions [J].
Huang, Shin-Ming ;
Xu, Su-Yang ;
Belopolski, Ilya ;
Lee, Chi-Cheng ;
Chang, Guoqing ;
Chang, Tay-Rong ;
Wang, BaoKai ;
Alidoust, Nasser ;
Bian, Guang ;
Neupane, Madhab ;
Sanchez, Daniel ;
Zheng, Hao ;
Jeng, Horng-Tay ;
Bansil, Arun ;
Neupert, Titus ;
Lin, Hsin ;
Hasan, M. Zahid .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2016, 113 (05) :1180-1185
[9]   Emergent Electromagnetic Induction and Adiabatic Charge Pumping in Noncentrosymmetric Weyl Semimetals [J].
Ishizuka, Hiroaki ;
Hayata, Tomoya ;
Ueda, Masahito ;
Nagaosa, Naoto .
PHYSICAL REVIEW LETTERS, 2016, 117 (21)
[10]  
JoAo S.M., 2018, ARXIV181003732