Comparison of the magneto-optical figure of merit of NdFeCo and TbFeCo alloys
Due to the magneto-optical (MO) activity of light rare earths, NdFeCo alloys have been suggested as candidates for use in future high density MO media designed for use at shorter wavelengths. We have measured the MO indices of refraction and computed the maximum Kerr rotation figure of merit as a fu...
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| Published in | Journal of applied physics Vol. 79; no. 8; pp. 5693 - 5695 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
15.04.1996
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| Online Access | Get full text |
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| Summary: | Due to the magneto-optical (MO) activity of light rare earths, NdFeCo alloys have been suggested as candidates for use in future high density MO media designed for use at shorter wavelengths. We have measured the MO indices of refraction and computed the maximum Kerr rotation figure of merit as a function of wavelength from 400 to 900 nm for a wide range of NdFeCo and TbFeCo alloys. Only a marginal gain in MO media performance is expected by incorporating NdFeCo into optimized TbFeCo thin film stacks. |
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| ISSN: | 0021-8979 1089-7550 |
| DOI: | 10.1063/1.362219 |