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arXiv · 1212.0666

Spinodal Decomposition of Magnetic Ions in Eu-Codoped Ge/1-x/Cr/x/Te

A. Podgórni·L. Kilanski·W. Dobrowolski·M. Górska·A. Reszka·V. Domukhovski·B. J. Kowalski·B. Brodowska·J. R. Anderson·N. P. Butch·V. E. Slynko·E. I. Slynko
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Abstract

We present the experimental evidence for the presence of spinodal decomposition of the magnetic ions in the Ge/1-x-y/Cr/x/Eu/y/Te samples with chemical composition varying in the range of 0.015 < x < 0.057 and 0.003 < y < 0.042. The ferromagnetic transition at temperatures 50 < T < 57 K was observed, independent of the chemical composition. The long-range carrier mediated itinerant magnetic interactions seem to be responsible for the observed ferromagnetic order. The magnetic irreversibility with coercive field H/C/ = 5?63 mT and the saturation magnetization M/S/ <? 2?6 emu/g are found to strongly depend on the chemical composition of the alloy.

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A. Podgórni, L. Kilanski, W. Dobrowolski, M. Górska, A. Reszka, V. Domukhovski, B. J. Kowalski, B. Brodowska, J. R. Anderson, N. P. Butch, V. E. Slynko, E. I. Slynko. 2012-12-04. Spinodal Decomposition of Magnetic Ions in Eu-Codoped Ge/1-x/Cr/x/Te. https://doi.org/10.12693/aphyspola.122.1012

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