Semiconductorlike Behavior of Electrical Resistivity in Heusler-typeCompound
- 8 September 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 79 (10), 1909-1912
- https://doi.org/10.1103/physrevlett.79.1909
Abstract
An anomalous negative temperature dependence of electrical resistivity has been observed in alloys with V compositions up to . In particular, the Heusler-type compound is found to be on the verge of magnetic ordering and to exhibit a semiconductorlike behavior with the resistivity reaching at 2 K, in spite of the possession of a clear Fermi cutoff as revealed in photoemission valence-band spectra. A substantial mass enhancement deduced from specific heat measurements suggests that is a possible candidate for a heavy-fermion system.
Keywords
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