Coexistence of Spin-Glass and Antiferromagnetic Orders in the Ising System Fe0.55Mg0.45Cl2

Po Zen Wong*, S. Von Molnar, T. T.M. Palstra, J. A. Mydosh, H. Yoshizawa, S. M. Shapiro, A. Ito

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

104 Citations (Scopus)
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Abstract

The low-temperature phase of the dilute Ising antiferromagnet Fe0.55Mg0.45Cl2 in zero field is studied by specific-heat, ac-susceptibility, and neutron-scattering experiments. We find that in this phase, spin-glass behavior and antiferromagnetic long-range order coexist. Such a mixed-order phase is predicted by the mean-field theory of reentrant spin-glasses, but has never been observed before.

Original languageEnglish
Pages (from-to)2043-2046
Number of pages4
JournalPhysical review letters
Volume55
Issue number19
DOIs
Publication statusPublished - 1 Jan 1985
Externally publishedYes

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