Abstract
The reentrant Ising spin glass Fe0.62Mn0.38TiO3 has been studied with Mossbauer spectroscopy as well as with field-cooled and zero-field-cooled magnetization measurements. The Neel and spin glass temperatures obtained are TN=32.8 K and Tg=25.8 K respectively. The 57Fe Mossbauer spectra recorded below 32 K are described in terms of two subspectra emanating from paramagnetic iron atoms and from iron atoms with canted magnetic moments. The canting angle was determined to be theta approximately=45 degrees for all temperatures below TN. The intensity of the paramagnetic subspectrum decreases with decreasing temperature and is typically about 25% at Tg. Longitudinal as well as transverse reentrant spin glass behaviour is observed in magnetization measurements.
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