Low Temperature Specific Heat Enhancement in Fe2VGa
نویسندگان
چکیده
Low-temperature specific heat measurements on the Heusler-type compounds Fe2VGa have been performed. We observed the sample-dependent upturn in C/T at low temperatures which is attributed to the effect of magnetic impurities and/or clusters. After subtracting this extrinsic effect, the resulting γ still indicated heavy fermion behavior with an effective mass of about 20 times larger than the value extracted from NMR results. Possible mechanisms for such an enhancement will be discussed.
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تاریخ انتشار 2005