Wednesday, December 5, 2012

1212.0666 (A. Podgórni et al.)

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

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
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 ?eld H/C/ = 5?63 mT and the saturation magnetization M/S/ View original:

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