Specific Features of the Electron Spin Resonance of an Iron Impurity in HgSe Crystals

The electron-spin-resonance spectra of transition metal ions Fe in the HgSe matrix are analyzed. The spectra have an appearance typical of the Fe 3+ ion, i.e., they consist of five fine-structure lines with a splitting that corresponds to a weak crystal field. The spectra are observed at temperature...

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Bibliographic Details
Published in:	Semiconductors (Woodbury, N.Y.) Vol. 53; no. 3; pp. 298 - 303
Main Authors:	Veinger, A. I., Kochman, I. V., Okulov, V. I., Govorkova, T. A., Andriichuk, M. D., Paranchich, L. D.
Format:	Journal Article
Language:	English
Published:	Moscow Pleiades Publishing 01-03-2019 Springer Nature B.V
Subjects:	CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY CRYSTAL FIELD Crystal structure CRYSTALS CURIE POINT Curie temperature Deformation Electron paramagnetic resonance Electron spin ELECTRON SPIN RESONANCE Electronic Properties of Semiconductors Electrons Ferromagnetism FINE STRUCTURE IMPURITIES IRON IRON IONS Line spectra Magnetic Materials Magnetism MATRIX MATERIALS MERCURY SELENIDES PARAMAGNETISM Physics Physics and Astronomy SPECTRA Spin resonance Temperature TEMPERATURE DEPENDENCE Transition metals
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Summary:	The electron-spin-resonance spectra of transition metal ions Fe in the HgSe matrix are analyzed. The spectra have an appearance typical of the Fe 3+ ion, i.e., they consist of five fine-structure lines with a splitting that corresponds to a weak crystal field. The spectra are observed at temperatures of up to 50 K. The spectral lines are deformed and have a Dyson shape. An analysis of the temperature dependences of the line amplitudes shows that a transition from paramagnetic ordering to ferromagnetic ordering occurs with decreasing temperature, with the Curie temperature T ≈ 7 K.
ISSN:	1063-7826 1090-6479
DOI:	10.1134/S1063782619030199