THEORY OF THE QUANTUM HALL-EFFECT IN QUASI-ONE-DIMENSIONAL CONDUCTORS

被引:0
|
作者
YAKOVENKO, VM
机构
[1] L.D. Landau Institute for Theoretical Physics, Chernogolovka, Moscow region
关键词
D O I
10.1016/0379-6779(91)91310-7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The integer topological invariant, called Chern number, is calculated for a quasi-one-dimensional conductor in the magnetic-field-induced spin-density-wave state. Due to nonzero value of the Chern number the Hall conductivity per layer has the quantized value sigma-xy = 2Le2/h and the effective action of the system contains so-called Hopf term, which describes topologically nontrivial configurations of the spin-density-wave polarization vector. The dependence of the integer number L on magnetic field H is calculated in the parquet approximation. The theory is applied to the organic conductors (TMTSF)2X.
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页码:3389 / 3392
页数:4
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