Cobalt-Doped Chalcopyrites CuGaSe2: Synthesis and Magnetic Properties

M. A. Zykin; Зыкин М. А.; S. V. Golodukhina; Голодухина С. В.; N. N. Efimov; Ефимов Н. Н.

doi:10.31857/S0044457X22601845

Cobalt-Doped Chalcopyrites CuGaSe2: Synthesis and Magnetic Properties

Authors: Zykin M.A.¹, Golodukhina S.V.¹, Efimov N.N.¹
Affiliations:
1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Issue: Vol 68, No 4 (2023)
Pages: 569-578
Section: НЕОРГАНИЧЕСКИЕ МАТЕРИАЛЫ И НАНОМАТЕРИАЛЫ
URL: https://rjsvd.com/0044-457X/article/view/665280
DOI: https://doi.org/10.31857/S0044457X22601845
EDN: https://elibrary.ru/FLSFPM
ID: 665280

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Abstract

Two series of cobalt-doped CuGa1 – xCoxSe2 and Cu1 – x/2Ga1 – x/2CoxSe2 chalcopyrites were prepared. Cobalt in part entered the chalcopyrite structure to ensure the appearance of paramagnetic properties, while in part it remained involved in cobalt selenide admixtures. High-temperature quenching forced almost all of the cobalt to enter the crystal structure in the Cu1 – x/2Ga1 – x/2CoxSe2 samples. Significant ferromagnetism appears in the Cu0.9Ga0.9Co0.2Se2 sample, which had the highest cobalt concentration, in particular at room temperature.

Keywords

chalcopyrite, cobalt, CuGaSe2, magnetic properties, dilute magnetic semiconductor

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