Abstract
The structural and the magnetic properties of spin- and charge-doped Sr0.8La0.2Ti0.9Co0.1O3 have been investigated. The sample shows a cubic structure at room temperature. The temperature dependence of magnetization (M) of Sr0.8La0.2Ti0.9Co0.1O3, in both zero-field-cooled (ZFC) and field-cooled (FC) modes between 100 and 70000Oe, was measured. It is found that the sample undergoes the paramagnetic-ferrimagnetic phase transition at around 50K, and the MZFC curve lies above the MFC one below 32K when the applied field is less than 2000Oe. This unusual behavior can be understood as a superposition of ferrimagnetic and paramagnetic contributions to the magnetization.
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