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arXiv · 1108.3960

Hydrostatic pressure study of paramagnetic-ferromagnetic phase transition in (Ga,Mn)As

M. Gryglas-Borysiewicz·A. Kwiatkowski·M. Baj·D. Wasik·J. Przybytek·J. Sadowski
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Abstract

The effect of hydrostatic pressure on the paramagnetic - ferromagnetic phase transition has been studied in (Ga,Mn)As. The variation of the Curie temperature (TC) with pressure was monitored by two transport methods: (1) - measurement of zero field resistivity versus temperature ρ(T), (2) - dependence on temperature of the Hall voltage hysteresis loop. Two specimens of different resistivity characteristics were examined. The measured pressure-induced changes of TC were relatively small (of the order of 1K/GPa) for both samples, however they were opposite for the two.

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M. Gryglas-Borysiewicz, A. Kwiatkowski, M. Baj, D. Wasik, J. Przybytek, J. Sadowski. 2011-08-19. Hydrostatic pressure study of paramagnetic-ferromagnetic phase transition in (Ga,Mn)As. https://doi.org/10.1103/physrevb.82.153204

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