Relation between anomalous Hall effect and the Dzaloshisky-Moriya anisotropy in the series of (Ag1 - x Aux)0.9 Mn0.1 alloys

K. Yamanaka, T. Taniguchi, Teruo Yamazaki, N. Ashitaka, Y. Morimoto, Y. Tabata, S. Kawarazaki

Research output: Contribution to journalArticle

Abstract

The influence of the Dzyaloshinsky-Moriya (DM) anisotropy on Rs ≡ ρex / M, where ρex is the extraordinary Hall resistivity and M is the magnetization, is investigated in canonical spin glass (SG) alloys. The strength of the DM anisotropy in the alloys is changed systematically by doping the third non-magnetic impurities. The Hall resistivity ρH, the magnetization M and the resistivity ρ were measured in the series of (Ag1 - x Aux)0.9 Mn0.1 alloys with x = 0, 0.007, 0.03, and 0.05. The difference between the values of zero field cooled and field cooled Rs, below the SG transition temperature, clearly increased with the amount of Au impurities. The dependence of the chirality contribution to Rs on the DM anisotropy is discussed in relation to the theoretical work for the chirality-driven anomalous Hall effect in weak coupling regime.

Original languageEnglish
Pages (from-to)1523-1525
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 2
DOIs
Publication statusPublished - 2007 Mar 1
Externally publishedYes

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Keywords

  • Chirality
  • Hall resistivity
  • Spin glass

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Yamanaka, K., Taniguchi, T., Yamazaki, T., Ashitaka, N., Morimoto, Y., Tabata, Y., & Kawarazaki, S. (2007). Relation between anomalous Hall effect and the Dzaloshisky-Moriya anisotropy in the series of (Ag1 - x Aux)0.9 Mn0.1 alloys. Journal of Magnetism and Magnetic Materials, 310(2 SUPPL. PART 2), 1523-1525. https://doi.org/10.1016/j.jmmm.2006.10.665