Existence of a phase transition under finite magnetic field in the long-range RKKY Ising spin glass DyxY1-xRu 2Si2

Yoshikazu Tabata; Kousuke Matsuda; Satoshi Kanada; Teruo Yamazaki; Takeshi Waki; Hiroyuki Nakamura; Keisuke Sato; Koichi Kindo

doi:10.1143/JPSJ.79.123704

Existence of a phase transition under finite magnetic field in the long-range RKKY Ising spin glass Dy_xY_1-xRu ₂Si₂

Yoshikazu Tabata^*, Kousuke Matsuda, Satoshi Kanada, Teruo Yamazaki, Takeshi Waki, Hiroyuki Nakamura, Keisuke Sato, Koichi Kindo

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

A phase transition of a model compound of the long-range Ising spin glass (SG) Dy_xY_1-xRu₂Si₂, where spins interact via the Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction, has been investigated. The static and dynamic scaling analyses reveal that the SG phase transition in the model magnet belongs to the mean-field universality class. Moreover, the characteristic relaxation time in finite magnetic fields, as well as in zero field, exhibits a critical divergent behavior, indicating the stability of the SG phase in finite fields. The presence of the SG phase transition in the field in this model magnet strongly suggests that the replica symmetry is broken in the long-range Ising SG.

Original language	English
Article number	123704
Journal	Journal of the Physical Society of Japan
Volume	79
Issue number	12
DOIs	https://doi.org/10.1143/JPSJ.79.123704
Publication status	Published - 2010 Dec 1
Externally published	Yes

Keywords

Critical phenomena
Dy YRuSi
Replica symmetry breaking
Spin glass

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.79.123704

Cite this

@article{615fee69525b47d5bc7f4fd09e686fb7,

title = "Existence of a phase transition under finite magnetic field in the long-range RKKY Ising spin glass DyxY1-xRu 2Si2",

abstract = "A phase transition of a model compound of the long-range Ising spin glass (SG) DyxY1-xRu2Si2, where spins interact via the Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction, has been investigated. The static and dynamic scaling analyses reveal that the SG phase transition in the model magnet belongs to the mean-field universality class. Moreover, the characteristic relaxation time in finite magnetic fields, as well as in zero field, exhibits a critical divergent behavior, indicating the stability of the SG phase in finite fields. The presence of the SG phase transition in the field in this model magnet strongly suggests that the replica symmetry is broken in the long-range Ising SG.",

keywords = "Critical phenomena, Dy YRuSi, Replica symmetry breaking, Spin glass",

author = "Yoshikazu Tabata and Kousuke Matsuda and Satoshi Kanada and Teruo Yamazaki and Takeshi Waki and Hiroyuki Nakamura and Keisuke Sato and Koichi Kindo",

year = "2010",

month = dec,

day = "1",

doi = "10.1143/JPSJ.79.123704",

language = "English",

volume = "79",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "12",

}

TY - JOUR

T1 - Existence of a phase transition under finite magnetic field in the long-range RKKY Ising spin glass DyxY1-xRu 2Si2

AU - Tabata, Yoshikazu

AU - Matsuda, Kousuke

AU - Kanada, Satoshi

AU - Yamazaki, Teruo

AU - Waki, Takeshi

AU - Nakamura, Hiroyuki

AU - Sato, Keisuke

AU - Kindo, Koichi

PY - 2010/12/1

Y1 - 2010/12/1

N2 - A phase transition of a model compound of the long-range Ising spin glass (SG) DyxY1-xRu2Si2, where spins interact via the Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction, has been investigated. The static and dynamic scaling analyses reveal that the SG phase transition in the model magnet belongs to the mean-field universality class. Moreover, the characteristic relaxation time in finite magnetic fields, as well as in zero field, exhibits a critical divergent behavior, indicating the stability of the SG phase in finite fields. The presence of the SG phase transition in the field in this model magnet strongly suggests that the replica symmetry is broken in the long-range Ising SG.

AB - A phase transition of a model compound of the long-range Ising spin glass (SG) DyxY1-xRu2Si2, where spins interact via the Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction, has been investigated. The static and dynamic scaling analyses reveal that the SG phase transition in the model magnet belongs to the mean-field universality class. Moreover, the characteristic relaxation time in finite magnetic fields, as well as in zero field, exhibits a critical divergent behavior, indicating the stability of the SG phase in finite fields. The presence of the SG phase transition in the field in this model magnet strongly suggests that the replica symmetry is broken in the long-range Ising SG.

KW - Critical phenomena

KW - Dy YRuSi

KW - Replica symmetry breaking

KW - Spin glass

UR - http://www.scopus.com/inward/record.url?scp=78651240160&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78651240160&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.79.123704

DO - 10.1143/JPSJ.79.123704

M3 - Article

AN - SCOPUS:78651240160

SN - 0031-9015

VL - 79

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - 12

M1 - 123704

ER -