The magnetic and transport properties of the Co2FeGa Heusler alloy
| Autor: | Ming Zhang, Zhuang-Zhi Li, Guangheng Wu, Frank R. de Boer, Ekkes Brück |
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| Přispěvatelé: | Hard Condensed Matter (WZI, IoP, FNWI) |
| Rok vydání: | 2004 |
| Předmět: |
Acoustics and Ultrasonics
Condensed matter physics Spin polarization Magnetoresistance Scattering Chemistry Electron Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Andreev reflection Condensed Matter::Materials Science Magnetization Spin wave Electrical resistivity and conductivity |
| Zdroj: | Journal of physics. D, Applied physics, 37 (15), 2049-2053. IOP Publishing Ltd. |
| ISSN: | 0022-3727 |
| DOI: | 10.1088/0022-3727/37/15/001 |
| Popis: | The magnetic and transport properties of the Co2FeGa Heusler alloy have been investigated. The results show that the temperature dependence of the magnetization follows the spin-wave behaviour at low temperature. The electrical resistivity behaves according to a ~T2 power law, which may be mainly attributed to electron–electron scattering, and the contribution of electron–phonon scattering to the resistivity seems to be small. We have not observed remarkable magnetoresistance in our measurements. Point contact Andreev reflection measurements of the spin-polarization yield a polarization of 59%, which is consistent with the theoretical prediction by a first-principles calculation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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