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Diluted magnetic semiconductors based on Sb2ÀxVxTe3 „0.01ÏxÏ0.03.
Physical Review B (2002)
  • Jeffrey Dyck, John Carroll University
  • Pavel Hájek
  • Petr Lošťák
  • Ctirad Uher
Abstract

We report on a diluted magnetic semiconductor based on the [formula] tetradymite structure doped with very low concentrations of vanadium (1—3 at. %). The anomalous transport behavior and robust magnetic hysteresis loops observed in magnetotransport and magnetic measurements are experimental manifestations of the ferromagnetic state in these materials. The [formula] exchange between holes and vanadium [formula] spins is estimated from the behavior of the magnetoresistance. A Curie temperature of at least 22 K is observed for [formula] This discovery offers possibilities for exploring magnetic properties of other tetradymite structure semiconductors doped with a wide range of [formula] transition metals.

Publication Date
March 15, 2002
Publisher Statement
Dyck, J.S., Hájek, P., Lošťák, P., and Uher, C. "Diluted magnetic semiconductors based on Sb2ÀxVxTe3 „0.01ÏxÏ0.03." Physical Review B 65:11 (2002):115212-115212-7. © 2002 American Physical Society DOI: 10.1103/PhysRevB.65.115212
Citation Information
Jeffrey Dyck, Pavel Hájek, Petr Lošťák and Ctirad Uher. "Diluted magnetic semiconductors based on Sb2ÀxVxTe3 „0.01ÏxÏ0.03." Physical Review B Vol. 65 Iss. 11 (2002)
Available at: http://works.bepress.com/jeffrey_dyck/45/