Novel Ferromagnetic Mn-Doped ZnSiAs2 Chalcopyrite with Curie Point Exceeded Room Temperature

S.F. Marenkin; V.M. Novotortsev; I.V. Fedorchenko; S.A. Varnavskiy; L.A. Koroleva; D.M. Zashchirinskii; T.M. Khapaeva; R.A. Szymczak; B. Krzymanska; W. Dobrowolski; L. Kilanski

doi:10.4028/www.scientific.net/SSP.152-153.311

Paper Titles

Ferromagnetism in Diluted Magnetic Semiconductors Pb_1-x-yGe_xCr_yTe
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Antiferromagnetic Ordering of the 3d Ions in Compounds with Ca₃Ga₂Ge₄O₁₄ Structure
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Magnetic Properties of Mn-Doped ZnO Nanowires
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Anomalous Magnetism in Eu(Ca)B₆
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Novel Ferromagnetic Mn-Doped ZnSiAs₂ Chalcopyrite with Curie Point Exceeded Room Temperature
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Influence of Glass Coating Thickness on Magnetoimpedance Ratio in Co-Based Amorphous Microwires
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Minimizing the Effect of Noise in High-Speed Reversal of a Magnetic Dipole
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A Microwave Study of Intrinsic Permeability of Mechanically Activated Powders of Fe-Based Alloys
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Bias Current Effect on Nonlinear Magnetoimpedance Response in Amorphous Wires with Circular Anisotropy
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Novel Ferromagnetic Mn-Doped ZnSiAs₂ Chalcopyrite with Curie Point Exceeded Room Temperature

Abstract:

Based on Mn-doped chalcopyrite ZnSiAs2 the new dilute magnetic semiconductor with p-type conductivity was produced. The Curie temperature behavior of the produced semiconductor is distinctly dependent on the Mn concentration: 325 K for 1 wt.% and 337 K for 2 wt.% of Mn, consequently. Magnetization, electrical resistance, magnetic resistance and Hall effect of mentioned compositions were studied. Temperature dependence of magnetization M(T) have complicate behavior. For T  15 K the M(T) dependence is characteristic for superparamagnetic and at T > 15 K magnetization is sum of magnetizations of ensemble of superparamagnetic clusters and ferromagnetic phase contained frustration regions.