Anisotropy of resistivity and its reversal in ferromagnets U3As4 and U3P4

Anisotropy of electrical resistivity exceeding 50% was observed in single-crystal samples of cubic ferromagnets U3As4 and U3P4. Unusual reversal of this anisotropy was discovered in both compounds. As existing models of the anisotropy of resistivity in ferromagnets seem insufficient to explain such...

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Veröffentlicht in:	Physica. B, Condensed matter Condensed matter, 2006-05, Vol.378-80, p.1001-1002
Hauptverfasser:	WISNIEWSKI, Piotr, KROWICKI, Bernard, KUCAJ, Malgorzata
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Conductivity phenomena in semiconductors and insulators Electronic transport in condensed matter Exact sciences and technology Low-field transport and mobility piezoresistance Physics
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Zusammenfassung:	Anisotropy of electrical resistivity exceeding 50% was observed in single-crystal samples of cubic ferromagnets U3As4 and U3P4. Unusual reversal of this anisotropy was discovered in both compounds. As existing models of the anisotropy of resistivity in ferromagnets seem insufficient to explain such behaviour, we suggest the distortion-induced anisotropy of the Fermi surface to play a leading role in the appearance of such unusual anisotropy.
ISSN:	0921-4526
DOI:	10.1016/j.physb.2006.01.384