Manifestation of Donor Hybridized Electron States in Magnetism of Nickel Impurities in Mercury Selenide Crystals

T.E. Govorkova; A.F. Gubkin; A.T. Lonchakov; Vsevolod I. Okulov; M.A. Andriichuk; L.D. Paranchich

doi:10.4028/www.scientific.net/SSP.233-234.121

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Manifestation of Donor Hybridized Electron States in Magnetism of Nickel Impurities in Mercury Selenide Crystals

Abstract:

The temperature dependences of the magnetic susceptibility χ (T) of diluted magnetic semiconductor HgSe:Ni (1·10¹⁸ < N_Ni < 1·10¹⁹) cm^-3 were investigated. It was found that paramagnetic part of the susceptibility which is wholly due to the effect of the impurities in the range of temperature from 1.8 to 200 K is described by the Curie-Weiss law. The analysis of the concentration dependence of the Curie constant C(N_Ni) based on the model of the hybridized electronic states was carried out. The application of this model allowed us to determine the microscopic parameters of the electronic structure of these crystals (the effective spin of the hybridized electronic states at the nickel impurity S_i and the resonance concentration of donor electrons n_0d).

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Solid State Phenomena (Volumes 233-234)

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121-124

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.233-234.121

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Online since:

July 2015

Authors:

T.E. Govorkova, A.F. Gubkin, A.T. Lonchakov, Vsevolod I. Okulov*, M.A. Andriichuk, L.D. Paranchich

Keywords:

3D-Impurities of Transition Metals, Curie Constant, Diluted Magnetic Semiconductors, Hybridized Electron States, Localized Magnetic Moments, Magnetic Susceptibility

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