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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57 Citations (Scopus)

Abstract

A scaling relation of the anomalous Hall effect recently found in a ferromagnetic semiconductor (Ti,Co)O2 is compared with those of various ferromagnetic semiconductors and metals. Many of these compounds with relatively low conductivity σxx ≤ 104 Ω-1·cm-1 are also found to exhibit similar relation: anomalous Hall conductivity σAH approximately scales as σAH α σxx1.6, that is coincident with a recent theory. This relation is valid over five decades of σxx irrespective of metallic or hopping conduction.

Original languageEnglish
Pages (from-to)L642-L644
JournalJapanese Journal of Applied Physics
Volume46
Issue number25-28
DOIs
Publication statusPublished - 2007 Jul 13

Keywords

  • Anomalous Hall conductivity
  • Anomalous Hall effect
  • Co-doped TiO
  • Ferromagnetic metal
  • Ferromagnetic semiconductor
  • Oxide semiconductor
  • Spintronics

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