| Autor: |
Songyou Wang, Lixing Yang, J.T. Wang, Shiyong Liu, Defang Shen, Bin Ma, Shihu Sun, Jian Zhou, Liang-Yao Chen, Yu-Xiang Zheng, Zhiqiang Zou |
| Rok vydání: |
2000 |
| Předmět: |
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| Zdroj: |
Physics Letters A. 271:115-120 |
| ISSN: |
0375-9601 |
| DOI: |
10.1016/s0375-9601(00)00324-8 |
| Popis: |
The effect of the Ni addition on the structural, magnetic and magneto-optical (MO) properties is investigated with Co 1− x Ni x Pt 3 alloy films. The result shows that the addition of Ni may greatly reduce the Curie temperature T c , thus enhancing MO recording. A large intrinsic perpendicular magnetic anisotropy (PMA) K u (0.644 MJ/m 3 ) was obtained in CoPt 3 alloy films. With the increase of the Ni content x , K u decreases, which indicates that excessive Ni will not enhance perpendicular recording. The high angle X-ray diffraction result shows that the 〈111〉 texture is not the only reason for a perpendicular magnetic anisotropy in present system. Although the addition of Ni reduces Kerr rotation angle in the blue-wave range, the films investigated can be considered as suitable for perpendicular magnetic recording applications ( T c =248°C, H c = 176 KA/m, θ k =0.43° at 4.2 eV photon energy), if a proper Ni content ( x = 0.25) is selected. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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