Microdeformations of domain walls in (210)-oriented garnet films (abstract)
| Autor: | E. N. Ilyicheva, J. A. Nyenhuis, A. V. Klushina, N. B. Shirokova |
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| Rok vydání: | 1997 |
| Předmět: | |
| Zdroj: | Journal of Applied Physics. 81:5678-5678 |
| ISSN: | 1089-7550 0021-8979 |
| Popis: | For appropriate values of perpendicular and in-plane magnetic fields, Hn and Hp, respectively, domain walls in (210) garnet films exhibit zig-zag and sinusoidal distortions along their lengths. Microdeformations of domain walls (DW) near these “instability loss lines”1 in the Hn, Hp plane were investigated in [120]-oriented stripe domain structures by a dark-field magneto-optical technique. Changes of brightness and contrast of the image along and across the DW occur in response to an in-plane field Hp. Figure 1 shows a stripe domain structure with Hp=120 Oe along [001]. The analysis of the images2 confirms the presence of alternating DW parts inclined at angles ±α of about 3°–5° from the film normal. The domain-wall displacement varies through the film thickness as the result of the DW being pinned to the transitional level of the film–substrate interface. In the completely aligned stripe array, in-phase microdeformations have been observed for neighboring domain walls. With an increase of Hp, the DW pa... |
| Databáze: | OpenAIRE |
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