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arXiv · 0706.2924

A scaling relation of anomalous Hall effect in ferromagnetic semiconductors and metals

Tomoteru Fukumura·Hidemi Toyosaki·Kazunori Ueno·Masaki Nakano·Takashi Yamasaki·Masashi Kawasaki
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Abstract

A scaling relation of the anomalous Hall effect recently found in a ferromagnetic semiconductor (Ti,Co)O_2_ is compared with those of various ferromagnetic semiconductors and metals. Many of these compounds with relatively low conductivity sigma_xx_ < 10^4 ohm^-1 cm^-1 are also found to exhibit similar relation: anomalous Hall conductivity sigma_AH_ approximately scales as sigma_AH_ proportional to sigma_xx_^1.6, that is coincident with a recent theory. This relation is valid over five decades of sigma_xx_ irrespective of metallic or hopping conduction.

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Tomoteru Fukumura, Hidemi Toyosaki, Kazunori Ueno, Masaki Nakano, Takashi Yamasaki, Masashi Kawasaki. 2007-06-20. A scaling relation of anomalous Hall effect in ferromagnetic semiconductors and metals. https://doi.org/10.1143/jjap.46.642

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