Critical phenomena in canonical spin glass AuMn from Hall effect measurements

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

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The extraordinary Hall resistivity ρex and the magnetization M of canonical spin glass AuMn with 8 at% Mn were measured simultaneously as a function of temperature with close attention to thermal and magnetic field hysteresis. The data of ρex show an anomaly at the spin glass transition temperature Tg. Moreover, the anomalous Hall coefficient RS ∼ ρex / M, which represents the chiral susceptibility of the system in the present case, also shows the anomaly. In conventional theories, the extraordinary Hall resistivity ρex is represented, ρex = M (A ρ + B ρ2), where ρ is the resistivity, and A and B are constants. Since ρ (T) is monotonic and smooth, the behavior of ρex / M clearly indicates that another term has to be included in the expression of ρex. The results can be interpreted consistently in terms of a chirality ordering model of canonical spin glasses. We argue the critical phenomena of the spin glass transition from Hall effect measurements in comparison with that from magnetization measurements.

Original languageEnglish
Pages (from-to)1526-1528
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 2
DOIs
Publication statusPublished - 2007 Mar 1
Externally publishedYes

Fingerprint

Spin glass
Hall effect
spin glass
electrical resistivity
Magnetization
anomalies
magnetization
Chirality
chirality
glass transition temperature
Hysteresis
Glass transition
hysteresis
Magnetic fields
magnetic permeability
magnetic fields
Temperature
temperature

Keywords

  • Anomalous Hall effect
  • Canonical spin glass
  • Chirality

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Taniguchi, T., Yamazaki, T., Yamanaka, K., Tabata, Y., & Kawarazaki, S. (2007). Critical phenomena in canonical spin glass AuMn from Hall effect measurements. Journal of Magnetism and Magnetic Materials, 310(2 SUPPL. PART 2), 1526-1528. https://doi.org/10.1016/j.jmmm.2006.10.666

Critical phenomena in canonical spin glass AuMn from Hall effect measurements. / Taniguchi, T.; Yamazaki, Teruo; Yamanaka, K.; Tabata, Y.; Kawarazaki, S.

In: Journal of Magnetism and Magnetic Materials, Vol. 310, No. 2 SUPPL. PART 2, 01.03.2007, p. 1526-1528.

Research output: Contribution to journalArticle

Taniguchi, T, Yamazaki, T, Yamanaka, K, Tabata, Y & Kawarazaki, S 2007, 'Critical phenomena in canonical spin glass AuMn from Hall effect measurements', Journal of Magnetism and Magnetic Materials, vol. 310, no. 2 SUPPL. PART 2, pp. 1526-1528. https://doi.org/10.1016/j.jmmm.2006.10.666
Taniguchi T, Yamazaki T, Yamanaka K, Tabata Y, Kawarazaki S. Critical phenomena in canonical spin glass AuMn from Hall effect measurements. Journal of Magnetism and Magnetic Materials. 2007 Mar 1;310(2 SUPPL. PART 2):1526-1528. https://doi.org/10.1016/j.jmmm.2006.10.666
Taniguchi, T. ; Yamazaki, Teruo ; Yamanaka, K. ; Tabata, Y. ; Kawarazaki, S. / Critical phenomena in canonical spin glass AuMn from Hall effect measurements. In: Journal of Magnetism and Magnetic Materials. 2007 ; Vol. 310, No. 2 SUPPL. PART 2. pp. 1526-1528.
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AB - The extraordinary Hall resistivity ρex and the magnetization M of canonical spin glass AuMn with 8 at% Mn were measured simultaneously as a function of temperature with close attention to thermal and magnetic field hysteresis. The data of ρex show an anomaly at the spin glass transition temperature Tg. Moreover, the anomalous Hall coefficient RS ∼ ρex / M, which represents the chiral susceptibility of the system in the present case, also shows the anomaly. In conventional theories, the extraordinary Hall resistivity ρex is represented, ρex = M (A ρ + B ρ2), where ρ is the resistivity, and A and B are constants. Since ρ (T) is monotonic and smooth, the behavior of ρex / M clearly indicates that another term has to be included in the expression of ρex. The results can be interpreted consistently in terms of a chirality ordering model of canonical spin glasses. We argue the critical phenomena of the spin glass transition from Hall effect measurements in comparison with that from magnetization measurements.

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