Abstract
We report the effect of Fe substitution on the structural and magnetic properties of quaternary Heusler alloys Co2Ti1-xFexSn. These alloys with varying Ti to Fe ratio (x = 0.1, 0.2, 0.3) are found to crystallize in well-ordered L21 structure. The saturation magnetization value is found to increase with increasing Fe concentration and is in close agreement with the Slater-Pauling rule, which is a prerequisite for half-metallic ferromagnetic materials. The Curie temperature is also found to increase with Fe concentration and lies above the room temperature for all the compositions under study.
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