The low-field susceptibility along the easy axis of the spin glass Fe2TiO5 exhibits a sharp cusp at Tg=48 K, whereas the susceptibility in transverse directions exhibits a broad maximum around 6 K. In all directions irreversibility appears already below Tg. Transverse irreversibility, however, is weaker by an order of magnitude than the longitudinal one. This behavior is discussed in terms of a model of a spin glass which has a weak random anisotropy in addition to a uniform easy axis.
Transverse ordering in anisotropic spin glasses
Authors: Yeshurun Y, Sompolinsky H.
Year of publication: 1985
Journal: Phys Rev B Condens Matter. 1985 Mar 1;31(5):3191-3193.
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