Abstract
Magnetic semiconductors are of interest for emerging spintronic applications, such as the integration of electronic information processing with magnetic data storage. We report on a new approach - furnace annealing under controlled ambients–aimed at increasing Mn incorporation and synthesizing new magnetic semiconductors with Tc greater than/around room temperature. These annealing treatments are hypothesized to reduce the effect of Mn interstitials. We have obtained preliminary SQUID magnetometry results which indicate ferromagnetic Curie temperatures of around 130 K in (In,Mn) Sb and 60 K in (In, Mn)P. X-ray diffraction was used to characterize phase homogeneity.
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Acknowledgments
We acknowledge the use of facilities at the W.M. Keck Center for Interface Materials Science at UCSD.
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Hollingsworth, J., Bandaru, P. Investigation of magnetic properties in Mn incorporated InSb, InP, and GaAs, synthesized through controlled-ambient annealing. MRS Online Proceedings Library 825, 21 (2004). https://doi.org/10.1557/PROC-825-G2.1
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DOI: https://doi.org/10.1557/PROC-825-G2.1