| 1. |
- Gryglas-Borysiewicz, M., et al.
(författare)
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Hydrostatic pressure study of the paramagnetic-ferromagnetic phase transition in (Ga,Mn)As
- 2010
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Ingår i: Physical Review B (Condensed Matter and Materials Physics). - 1098-0121. ; 82:15
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Tidskriftsartikel (refereegranskat)abstract
- The effect of hydrostatic pressure on the paramagnetic-ferromagnetic phase transition has been studied in (Ga,Mn)As. The variation in the Curie temperature (T-C) with pressure was monitored by two transport methods: (1) measurement of zero-field resistivity versus temperature rho(T) and (2) dependence on temperature of the Hall voltage hysteresis loop. Two specimens of different resistivity characteristics were examined. The measured pressure-induced changes in T-C were relatively small (on the order of 1 K/GPa) for both samples, however they were opposite for the two.
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| 2. |
- Juszynski, P., et al.
(författare)
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Magnetic anisotropy investigations of (Ga,Mn)As with a large epitaxial strain
- 2015
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Ingår i: Journal of Magnetism and Magnetic Materials. - : Elsevier BV. - 0304-8853. ; 396, s. 48-52
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Tidskriftsartikel (refereegranskat)abstract
- Magnetic properties of 20 nm thick (Ga,Mn)As layer deposited on (Ga,ln)As buffer with very large epitaxial tensile strain are investigated. Gal,In,As buffer with x=30% provides a 2% lattice mismatch, which is an important extension of the mismatch range studied so far (up to 0.5%). Evolution of magnetic anisotropy as a function of temperature is determined by magnetotransport measurements. Additionally, results of direct measurements of magnetization are shown. (C) 2015 Published by Elsevier B.V.
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| 3. |
- Juszynski, P., et al.
(författare)
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Influence of Epitaxial Strain on Magnetic Anisotropy in (Ga,Mn)As
- 2012
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Ingår i: Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics. - 0587-4246. ; 122:6, s. 1004-1006
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Tidskriftsartikel (refereegranskat)abstract
- Two (Ga,Mn)As samples having different magnetic anisotropy (one with in-plane easy axis and another one with out-of-plane easy axis) were studied by means of magnetotransport experiments. Anisotropy field B-A was determined for both samples as a function of temperature. For the sample having in-plane easy axis, an inversion of the direction of planar Hall effect hysteresis was observed upon increase of temperature. This result was simulated using the Stoner-Wohlfarth model.
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