Anomalous low-temperature specific heat of Fe2-xV1+xAl (x=0; 0.1) alloys

27th International Conference on Low Temperature Physics

Lonchakov, A.T.^1 ; Marchenkov, V.V.^1 ; Okulov, V.I.^1 ; Okulova, K.A.^1 ; Govorkova, T.E.^1 ; Podgornykh, S.M.^1 ; Weber, H.W.^2

Institute of Metal Physics, Ekaterinburg

620990, Russia^1

Atominstitut, Vienna University of Technology, VIENNA

1020, Austria^2

关键词: Current carriers;    Heusler alloys;    Low temperature heat capacities;    Low-temperature specific heat;    Magnetic defects;    Pseudo-gap;    Temperature intervals;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/568/5/052018/pdf
DOI  :  10.1088/1742-6596/568/5/052018

来源: IOP

【 摘 要 】

The low-temperature specific heat of stoichiometric and off-stoichiometric Fe2-xV1+xAl (x 0; 0.1) Heusler alloys was measured in the temperature interval from 1.8 to 12 K. We report on specific features in the low-temperature heat capacity, which reflect the scattering of the current carriers by magnetic defects in both alloys and the existence of a narrow pseudogap in the V-enriched alloy.