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Growth and properties of ferromagnetic In(1-x)Mn(x)Sb alloys | | T. Wojtowicz
; W.L. Lim
; X. Liu
; G. Cywinski
; M. Kutrowski
; L.V. Titova
; K. Yee
; M. Dobrowolska
; J.K. Furdyna
; K.M. Yu
; W. Walukiewicz
; G.B. Kim
; M. Cheon
; X. Chen
; S.M. Wang
; H. Luo
; I. Vurgaftman
; J.R. Meyer
; | | Date: |
1 Jul 2003 | | Subject: | Materials Science | cond-mat.mtrl-sci | | Abstract: | We discuss a new narrow-gap ferromagnetic (FM) semiconductor alloy, In(1-x)Mn(x)Sb, and its growth by low-temperature molecular-beam epitaxy. The magnetic properties were investigated by direct magnetization measurements, electrical transport, magnetic circular dichroism, and the magneto-optical Kerr effect. These data clearly indicate that In(1-x)Mn(x)Sb possesses all the attributes of a system with carrier-mediated FM interactions, including well-defined hysteresis loops, a cusp in the temperature dependence of the resistivity, strong negative magnetoresistance, and a large anomalous Hall effect. The Curie temperatures in samples investigated thus far range up to 8.5 K, which are consistent with a mean-field-theory simulation of the carrier-induced ferromagnetism based on the 8-band effective band-orbital method. | | Source: | arXiv, cond-mat/0307032 | | Services: | Forum | Review | PDF | Favorites | |
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