Scaling of the anomalous Hall effect in the insulating regime

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SYSNO ASEP	0375399
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Scaling of the anomalous Hall effect in the insulating regime
Author(s)	Liu, X.-J. (US) Liu, X. (US) Sinova, Jairo (FZU-D)_{RID, ORCID}
Source Title	Physical Review. B - ISSN 1098-0121 Roč. 84, č. 16 (2011), 165304/1-165304/11
Number of pages	11 s.
Language	eng - English
Country	US - United States
Keywords	disordred-systems ; impurity conduction ; percolation
Subject RIV	BM - Solid Matter Physics ; Magnetism
CEZ	AV0Z10100521 - FZU-D (2005-2011)
UT WOS	000299000700002
DOI	10.1103/PhysRevB.84.165304
Annotation	We develope the theory of the scaling of the anomalous Hall effect (AHE) in the insulating regime, which is observed in experiments to relate the anomalous Hall and diagonal conductivities by sigma(AH)(xy) proportional to sigma(1.40 similar to 1.75)(xx) for a large range of materials. This scaling is qualitatively different from that observed in metals. Basing our theory on the phonon-assisted hopping mechanism and percolation theory in random networks, we derive a general formula for the anomalous Hall conductivity, in which the percolation theory averaging of the random-linked triad clusters is a key aspect that captures the correct observed physics.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2012

Number of the records: 1