Observation of large intrinsic anomalous Hall conductivity in polycrystalline Mn3Sn films

Author(s):  
Wafa Afzal ◽  
Zengji Yue ◽  
Zhi Li ◽  
Michael Fuhrer ◽  
Xiaolin Wang
Keyword(s):  
2D Materials ◽  
2016 ◽  
Vol 3 (2) ◽  
pp. 024007 ◽  
Author(s):  
Jose H Garcia ◽  
Tatiana G Rappoport

1993 ◽  
Vol 07 (19) ◽  
pp. 3415-3421 ◽  
Author(s):  
ALEXANDRE S. ROZHAVSKY

A field description of spin-density-wave (SDW) in a quasi-two-dimensional metal with open Fermi surface in magnetic field, is proposed. The SDW transition temperature, T c (H), and the Hall conductivity σxy, are calculated. The dependence T c (H) is found to be different from that of the Bardeen-Cooper-Schrieffer model, in particular, a threshold field, H c , found its natural explanation. It is proved that the quantized Hall conductivity arises from the chiral anomaly terms in the effective action provided there is pinning of chemical potential in the gap of extended states.


2018 ◽  
Vol 10 (41) ◽  
pp. 35589-35598 ◽  
Author(s):  
Oleg E. Parfenov ◽  
Dmitry V. Averyanov ◽  
Andrey M. Tokmachev ◽  
Igor A. Karateev ◽  
Alexander N. Taldenkov ◽  
...  
Keyword(s):  

2001 ◽  
Vol 79 (9) ◽  
pp. 1121-1131 ◽  
Author(s):  
P Bracken

The gauge-transformation properties of the actions of certain scalar and Chern–Simons theories are investigated, including contributions from the boundary. By imposing chirality constraints on the fields, these types of theories can be used to describe the quantum Hall effect. It is shown that the corresponding equation of motion for the associated current for the theory generates an anomaly, which can be related directly to the Hall conductivity. PACS Nos.: 73.43, 03.70, 11.10, 11.30R


1999 ◽  
Vol 59 (21) ◽  
pp. 14031-14039 ◽  
Author(s):  
L. M. Wang ◽  
H. C. Yang ◽  
H. E. Horng
Keyword(s):  

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