Critical phenomena of canonical spin glass systems with large Dzyaloshinsky–Moriya anisotropy

Taniguchi, Tomoyo; Makisaka, K

doi:10.1088/1742-6596/320/1/012046

Cited by 7 publications

(2 citation statements)

References 16 publications

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“…The latter one compares well with values from orientational (g D 0.95À1.7) [29] and magnetic spin and cluster glasses (g D 1.75À2.0). [30,31] Two remarks are in order being added to this delicate topic. First, the divergence of x 3 in Figure 7(c) is necessarily smeared in its asymptotic critical temperature range, 175 K < T < T g , mainly because of the finite frequency applied.…”

Section: Relaxor and Cluster Glass Properties Of Isovalent Relaxor Fementioning

confidence: 99%

The cluster glass route of relaxor ferroelectrics

2014

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Section: Relaxor and Cluster Glass Properties Of Isovalent Relaxor Fementioning

confidence: 99%

The cluster glass route of relaxor ferroelectrics

2014

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“…The canonical SG is a group of SG materials consisting of a nonmagnetic metal with low-concentration magnetic impurities, such as Au(Fe), Cu(Mn), Ag(Mn), and Pt(Mn), which is categorized into the RKKY Heisenberg SG with weak random anisotropy. Most of the canonical SG materials exhibit a universal critical behavior with critical exponents γ ∼ 2, β ∼ 1, δ ∼ 3, and zν ∼ 7 [23][24][25][26] . On the other hand, Fe x Mn 1−x TiO 3 is a model magnet of the Ising SG with short-range (superexchange) interaction and shows a SG transition with critical exponents γ ≃ 4.0, β ≃ 0.54, δ ≃ 8.4, and zν ≃ 10 13,14,27 .…”

Section: A Critical Exponents and Universality Classmentioning

confidence: 99%

Dynamic scaling analysis of the long-range RKKY Ising spin glass DyxY1−xRu2Si2

2017

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Dynamic scaling analyses of linear and nonlinear ac susceptibilities in a model magnet of the longrang Ruderman-Kittel-Kasuya-Yoshida (RKKY) Ising spin glass (SG) Dy0.103Y0.897Ru2Si2 were examined. The obtained set of critical exponents, γ ∼ 1, β ∼ 1, δ ∼ 2, and zν ∼ 3.4, indicates the SG phase transition belongs to a universality class different from that of either the canonical (Heisenberg) or short-range Ising SGs. The analyses also reveal a finite-temperature SG transition with the same critical exponents under a magnetic field and the phase-transition line Tg(H) described by Tg(H) = Tg(0)(1 − AH 2/φ ) with φ ∼ 2. The crossover exponent φ obeys the scaling relation φ = γ + β within the margin of errors. These results strongly suggest spontaneous replica-symmetry breaking (RSB) with a non-or marginal-mean-field universality class in the long-range RKKY Ising SG.

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