Effects of substrate bias and annealing on the properties of amorphous alloy films of Gd‐Co, Gd‐Fe, and Gd‐Co‐X(X=Mo,Cu,Au)
| Autor: | V. J. Minkiewicz, N. Kazama, Neil Heiman, D. F. Kyser |
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| Rok vydání: | 1978 |
| Předmět: | |
| Zdroj: | Journal of Applied Physics. 49:366-375 |
| ISSN: | 1089-7550 0021-8979 |
| DOI: | 10.1063/1.324344 |
| Popis: | We have examined the dependence of various properties of sputter‐deposited amorphous GdCo, GdFe, and GdCoX (X=Mo,Cu,Au) films upon substrate bias and annealing. Particular interest was directed to changes in magnetization, anisotropy, composition, x‐ray diffraction patterns, and Ar content of the films. In the case of the binary films, we applied substrate bias voltages to 400 V. We found that for the GdCo system, Ku rises with increasingly negative bias voltage to about Vb=−200 V. Further increases in Vb cause Ku to decrease, so that Ku?0 for Vb?−400 V. Furthermore, it was found that the Ar content of the films tends to correlate with Vb, reaching a maximum for Vb?−200 V. X‐ray diffraction patterns of these films also appear to correlate with Ku but in a more subtle manner than has been suggested by other workers. The results for amorphous GdFe films were considerably different. In particular, it was found that Ku was large for Vb?0 but decreased rapidly with negative bias. The behavior of ternary GdCoX ... |
| Databáze: | OpenAIRE |
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