Abstract
A decrease of both the longitudinal and transverse spin freezing temperatures occurs in the uniaxially anisotropic spin glass Fe2TiO5 when 5% of Fe3+ ions are replaced by Mn3+. This is understood on the basis of the mean field theory of anisotropic spin glasses, the increase in bond disorder on Mn3+ doping and the presence of weak, random Dzyaloshinsky-Moriya interaction which couples the longitudinal and transverse irreversibilities.
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