Quantitative investigation of the magnetic anisotropy in GaMnAs film by using Hall measurement
| Autor: | Hyunji Son, Sunjae Chung, Xiaofeng Liu, Jacek K. Furdyna, Sun Young Yea, Sanghoon Lee |
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| Rok vydání: | 2008 |
| Předmět: |
Condensed Matter::Materials Science
Magnetic anisotropy Materials science Ferromagnetism Condensed matter physics Hall effect Thermal Hall effect General Physics and Astronomy Magnetic semiconductor Quantum Hall effect Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Anisotropy Magnetic field |
| Zdroj: | Journal of Applied Physics. 103:07F313 |
| ISSN: | 1089-7550 0021-8979 |
| DOI: | 10.1063/1.2834448 |
| Popis: | We have performed a systematic Hall measurement on the GaMnAs ferromagnetic films. The angular dependences of the Hall effects were obtained by changing the magnetic field angle in two different crystal planes [i.e., (001) and (110)]. The in-plane and out-of-plane anisotropy fields were obtained by analyzing the angular dependence of planar Hall resistance and anomalous Hall resistance based on the magnetic free energy model. While the cubic anisotropy fields both for in-plane and out-of-plane showed strong temperature dependence, the uniaxial anisotropy fields were insensitive to the temperature. |
| Databáze: | OpenAIRE |
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