Spin glass transition in canonical AuFe alloys: A numerical study

Kai Cheng Zhang; Yong Feng Li; Gui Bin Liu; Yan Zhu

doi:10.1016/j.physleta.2012.04.042

Spin glass transition in canonical AuFe alloys: A numerical study

Kai Cheng Zhang^*, Yong Feng Li, Gui Bin Liu, Yan Zhu

^*Corresponding author for this work

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

7 Citations (Scopus)

Abstract

Although spin glass transitions have long been observed in diluted magnetic alloys, e.g. AuFe and CuMn alloys, previous numerical studies are not completely consistent with the experiment results. The abnormal critical exponents of the alloys remain still puzzling. By employing parallel tempering algorithm with finite-size scaling analysis, we investigated the phase transitions in canonical AuFe alloys. Our results strongly support that spin glass transitions occur at finite temperatures in the alloys. The calculated critical exponents agree well with those obtained from experiments.

Original language	English
Pages (from-to)	1898-1902
Number of pages	5
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	376
Issue number	24-25
DOIs	https://doi.org/10.1016/j.physleta.2012.04.042
Publication status	Published - 14 May 2012
Externally published	Yes

Keywords

Correlation length
Critical exponent
Magnetic alloy
Transition

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10.1016/j.physleta.2012.04.042

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abstract = "Although spin glass transitions have long been observed in diluted magnetic alloys, e.g. AuFe and CuMn alloys, previous numerical studies are not completely consistent with the experiment results. The abnormal critical exponents of the alloys remain still puzzling. By employing parallel tempering algorithm with finite-size scaling analysis, we investigated the phase transitions in canonical AuFe alloys. Our results strongly support that spin glass transitions occur at finite temperatures in the alloys. The calculated critical exponents agree well with those obtained from experiments.",

keywords = "Correlation length, Critical exponent, Magnetic alloy, Transition",

author = "Zhang, {Kai Cheng} and Li, {Yong Feng} and Liu, {Gui Bin} and Yan Zhu",

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T2 - A numerical study

AU - Zhang, Kai Cheng

AU - Li, Yong Feng

AU - Liu, Gui Bin

AU - Zhu, Yan

PY - 2012/5/14

Y1 - 2012/5/14

N2 - Although spin glass transitions have long been observed in diluted magnetic alloys, e.g. AuFe and CuMn alloys, previous numerical studies are not completely consistent with the experiment results. The abnormal critical exponents of the alloys remain still puzzling. By employing parallel tempering algorithm with finite-size scaling analysis, we investigated the phase transitions in canonical AuFe alloys. Our results strongly support that spin glass transitions occur at finite temperatures in the alloys. The calculated critical exponents agree well with those obtained from experiments.

AB - Although spin glass transitions have long been observed in diluted magnetic alloys, e.g. AuFe and CuMn alloys, previous numerical studies are not completely consistent with the experiment results. The abnormal critical exponents of the alloys remain still puzzling. By employing parallel tempering algorithm with finite-size scaling analysis, we investigated the phase transitions in canonical AuFe alloys. Our results strongly support that spin glass transitions occur at finite temperatures in the alloys. The calculated critical exponents agree well with those obtained from experiments.

KW - Correlation length

KW - Critical exponent

KW - Magnetic alloy

KW - Transition

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JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 24-25

ER -

Spin glass transition in canonical AuFe alloys: A numerical study

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Keywords

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