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Ivan Savenko
복잡계 이론물리 연구단
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Quantum anomalous valley Hall effect for bosons

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Title
Quantum anomalous valley Hall effect for bosons
Author(s)
V. M. Kovalev; I. G. Savenko
Publication Date
2019-09
Journal
PHYSICAL REVIEW B, v.100, no.12, pp.121405 -
Publisher
AMER PHYSICAL SOC
Abstract
We predict the emergence and quantization of the valley Hall current of indirect excitons residing in noncentrosymmetric two-dimensional materials in the absence of an external magnetic field. Thus we report on the quantum anomalous valley Hall effect for bosons. The crucial ingredients of its existence are the finite anomalous group velocity of exciton motion and the presence of the Bose-Einstein condensate, from which the particles are pushed out by external illumination to contribute to the stationary nonequilibrium current, which exhibits a quantized behavior as a function of the frequency of light.©2019 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/6358
ISSN
2469-9950
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > Journal Papers (저널논문)
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