Coexistence of Spin-Glass and Antiferromagnetic Orders in the Ising System Fe0.55Mg0.45Cl2
- Wong, Po-zen
- Molnar, S. von
- Palstra, T.T.M.
- Mydosh, J.A.
- Yoshizawa, H.
- Shapiro, S.M.
- Ito, A.
Publication date
January 1985
DOIAbstract
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
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