Theoretical Evidence for the Berry-Phase Mechanism of Anomalous Hall Transport: First-principles Studies on CuCr$_2$Se$_{4-x}$Br$_x$

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dc.creatorYao, Yugui
dc.creatorLiang, Yongcheng
dc.creatorXiao, Di
dc.creatorNiu, Qian
dc.creatorShen, Shun-Qing
dc.creatorDai, X.
dc.creatorFang, Zhong
dc.date2006-09-27
dc.date2007-01-11
dc.date.accessioned2026-07-07T07:39:35Z
dc.date.available2026-07-07T07:39:35Z
dc.descriptionTo justify the origin of anomalous Hall effect (AHE), it is highly desirable to have the system parameters tuned continuously. By quantitative calculations, we show that the doping dependent sign reversal in CuCr$_{2}$Se$_{4-x}$Br$_{x}$, observed but not understood, is nothing but direct evidence for the Berry-Phase mechanism of AHE. The systematic calculations well explain the experiment data for the whole doping range where the impurity scattering rates is changed by several orders with Br substitution. Further sign change is also predicted, which may be tested by future experiments.
dc.description4 pages
dc.identifierhttps://arxiv.org/abs/cond-mat/0609714
dc.identifierhttp://arxiv.org/abs/cond-mat/0609714
dc.identifierPhys. Rev. B 75, 020401(R) (2007)
dc.identifierdoi:10.1103/PhysRevB.75.020401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/121504
dc.subjectMesoscale and Nanoscale Physics
dc.subjectMaterials Science
dc.titleTheoretical Evidence for the Berry-Phase Mechanism of Anomalous Hall Transport: First-principles Studies on CuCr$_2$Se$_{4-x}$Br$_x$
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