Critical phenomena in long-range RKKY ising spin glasses

Yoshikazu Tabata; Satoshi Kanada; Teruo Yamazaki; Takeshi Waki; Hiroyuki Nakamura

doi:10.1088/1742-6596/320/1/012051

Critical phenomena in long-range RKKY ising spin glasses

Yoshikazu Tabata^*, Satoshi Kanada, Teruo Yamazaki, Takeshi Waki, Hiroyuki Nakamura

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

3 Citations (Scopus)

Abstract

We have investigated critical phenomena in spin glasses R_xY _1-xRu₂Si₂ (R = Dy, Tb, Gd). These compounds, where the magnetic moments of rare-earth ions interact by the long-range Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction via conduction electrons, has uniaxial magnetic anisotropy. The separation of the zero-field-cooled and field-cooled magnetization was found only along the c-axis in all compounds, and hence, they are classified into the long-range Ising spin glass. The magnetic anisotropic energies in these compounds are different from each other in two orders of magnitude, from 330 K to 1.8 K, however, the critical exponents are similar. It clearly indicates a presence of the universality of the long-range RKKY Ising spin glasses.

Original language	English
Article number	012051
Journal	Journal of Physics: Conference Series
Volume	320
DOIs	https://doi.org/10.1088/1742-6596/320/1/012051
Publication status	Published - 2011 Jan 1
Externally published	Yes
Event	International Conference on Frustration in Condensed Matter, ICFCM - Sendai, Japan Duration: 2011 Jan 11 → 2011 Jan 14

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1088/1742-6596/320/1/012051

Cite this

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title = "Critical phenomena in long-range RKKY ising spin glasses",

abstract = "We have investigated critical phenomena in spin glasses RxY 1-xRu2Si2 (R = Dy, Tb, Gd). These compounds, where the magnetic moments of rare-earth ions interact by the long-range Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction via conduction electrons, has uniaxial magnetic anisotropy. The separation of the zero-field-cooled and field-cooled magnetization was found only along the c-axis in all compounds, and hence, they are classified into the long-range Ising spin glass. The magnetic anisotropic energies in these compounds are different from each other in two orders of magnitude, from 330 K to 1.8 K, however, the critical exponents are similar. It clearly indicates a presence of the universality of the long-range RKKY Ising spin glasses.",

author = "Yoshikazu Tabata and Satoshi Kanada and Teruo Yamazaki and Takeshi Waki and Hiroyuki Nakamura",

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T1 - Critical phenomena in long-range RKKY ising spin glasses

AU - Tabata, Yoshikazu

AU - Kanada, Satoshi

AU - Yamazaki, Teruo

AU - Waki, Takeshi

AU - Nakamura, Hiroyuki

PY - 2011/1/1

Y1 - 2011/1/1

N2 - We have investigated critical phenomena in spin glasses RxY 1-xRu2Si2 (R = Dy, Tb, Gd). These compounds, where the magnetic moments of rare-earth ions interact by the long-range Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction via conduction electrons, has uniaxial magnetic anisotropy. The separation of the zero-field-cooled and field-cooled magnetization was found only along the c-axis in all compounds, and hence, they are classified into the long-range Ising spin glass. The magnetic anisotropic energies in these compounds are different from each other in two orders of magnitude, from 330 K to 1.8 K, however, the critical exponents are similar. It clearly indicates a presence of the universality of the long-range RKKY Ising spin glasses.

AB - We have investigated critical phenomena in spin glasses RxY 1-xRu2Si2 (R = Dy, Tb, Gd). These compounds, where the magnetic moments of rare-earth ions interact by the long-range Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction via conduction electrons, has uniaxial magnetic anisotropy. The separation of the zero-field-cooled and field-cooled magnetization was found only along the c-axis in all compounds, and hence, they are classified into the long-range Ising spin glass. The magnetic anisotropic energies in these compounds are different from each other in two orders of magnitude, from 330 K to 1.8 K, however, the critical exponents are similar. It clearly indicates a presence of the universality of the long-range RKKY Ising spin glasses.

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Critical phenomena in long-range RKKY ising spin glasses

Abstract

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