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- W2992994610 abstract "Fe/sub 1-x/Mg/sub x/Cl/sub 2/ is a diluted Ising antiferromagnet with competing first and second neighbor exchange interactions. A previous magnetization study by Bertrand et al has found that at x approx. = 0.45, the system undergoes a Neel transition at T/sub N/ approx. = 7.4K which is followed by a spin-glass transition at T/sub sg/ approx. = 3.0K. We report a quasielastic neutron scattering study on a single crystal sample with this composition. We find that the antiferromagnetic Bragg peak persists down to 1.2K, well below T/sub sg/, and the diffuse scattering becomes temperature independent below about 6.0K, with the correlation length frozen at about 2.3 lattice spacings. No scattering related to the transverse spin-component are observed. These results suggests that there is coexistence between long range antiferromagnetic order and short-range spin-glass order for the longitudinal spin-component. Such a behavior is consistent with the predictions of the vector mean-field theory (infinite range model) for spin-glasses with strong unaxial anisotropy." @default.
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- W2992994610 date "1984-10-01" @default.
- W2992994610 modified "2023-09-24" @default.
- W2992994610 title "Coexistence of antiferromagnetism and spin-glass ordering in the Ising system Fe/sub 0/ /sub 55/Mg/sub 0/ /sub 45/Cl/sub 2/" @default.
- W2992994610 hasPublicationYear "1984" @default.
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