Vertical gradient of magnetic anisotropy in the ferromagnetic semiconductor (Ga,Mn)As film
| Autor: | Sanghoon Lee, Taehee Yoo, Sunjae Chung, S. C. Kim, Sun Young Yea, Xiaofeng Liu, Jacek K. Furdyna, Hyunji Son |
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| Rok vydání: | 2010 |
| Předmět: |
Magnetic anisotropy
Materials science Physics and Astronomy (miscellaneous) Magnetic domain Magnetic shape-memory alloy Condensed matter physics Hall effect Thermal Hall effect Quantum Hall effect Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Magnetocrystalline anisotropy Magnetic susceptibility |
| Zdroj: | Applied Physics Letters. 96:092105 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/1.3339301 |
| Popis: | The properties of magnetic anisotropy of GaMnAs films along the growth direction were studied by Hall effect measurements. The magnetic anisotropy fields were obtained by analyzing the angular dependence of the planar Hall resistance and the anomalous Hall resistance for in-plane and out-of plane components of the Hall signal, respectively. The magnetic anisotropy fields obtained by this process were used to construct a three-dimensional magnetic free energy diagram, which clearly shows that the out-of-plane characteristics of magnetic anisotropy become more pronounced as we approach the bottom part of the film. |
| Databáze: | OpenAIRE |
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