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I. I. Abbasov
Temperature Behaviour of the EPR Spectrum of Polycrystalline ZnSe
0253–0260 (2023)

PACS numbers: 71.70.Ej, 76.30.Fc, 78.55.Et, 81.07.Wx, 81.15.Gh, 81.70.Jb, 82.80.Ms

The temperature behaviour of the EPR spectrum of polycrystalline ZnSe, which is characteristic of bivalent Jahn–Teller copper ions Cu++, is studied. The temperature dependence of the EPR spectra shows a decrease in the EPR-spectrum linewidth from 300 K to 120 K, but, at a temperature below 120 K, the EPR lines are broaden. This broadening can be associated with the transition of the bivalent ion Cu++ to the univalent state.

Key words: EPR in polycrystalline ZnSe, Jahn–Teller effect, ions Cu++, magnetic phase transitions, tetragonally distorted octahedrons.

https://doi.org/10.15407/nnn.21.02.253

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