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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
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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.

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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. 2003-07-01. Growth and properties of ferromagnetic In(1-x)Mn(x)Sb alloys. https://doi.org/10.1016/j.physe.2003.08.028

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