Abstract

The spin correlation in a reentrant spin glass of 79FeTiO 3 –21Fe 2 O 3 has been studied by neutron scattering from a single-crystal. The spin correlation parallel and perpendicular to the c-axis has been separately discussed. It has been found that the squared Lorentzian type spin correlations between perpendicular components develop below the ferromagnetic transition temperature. The reentrant spin glass transition temperature defined as the temperature where the magnetization starts to decrease has been found to correspond to the temperature where the parallel (transverse) components appear and the system is devided into large domains with the canted spin structure.

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