Electrical Properties of Gallium Manganese Antimonide: a New Diluted Magnetic Semiconductor

Abstract
Ga1- x Mn x Sb, a ternary diluted magnetic semiconductor (DMS) alloy was newly synthesised with different Mn concentrations (x=0.0048, 0.01, 0.05 and 0.14) using Bridgman growth technique. The stoichiometry and the composition were verified by the electron probe microanalysis and X-ray diffraction analysis. At room temperature electrical parameters like resistivity, Hall co-efficient, carrier concentration and mobility were determined. The variations of resistivity and Hall co-efficient with temperature were studied and it was found that the alloy was degenerate in nature.

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