Thermomagnetic writing in thin Co/Pt layered structures
| Autor: | Willem Frederik Godlieb, P. F. Carcia, F. J. A. den Broeder, F. J. A. M. Greidanus, W. B. Zeper |
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| Rok vydání: | 1989 |
| Předmět: |
Materials science
Physics and Astronomy (miscellaneous) Condensed matter physics chemistry.chemical_element Thermomagnetic convection Optical storage Coercivity Corrosion Condensed Matter::Materials Science Nuclear magnetic resonance chemistry Remanence Condensed Matter::Superconductivity Thin film Platinum Cobalt |
| Zdroj: | Applied Physics Letters. 54:2481-2483 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/1.101073 |
| Popis: | In this letter we demonstrate thermomagnetic writing in a Co/Pt thin‐film layered structure or multilayer: 25×(4.1 A Co+19 A Pt). This film exhibits perpendicular magnetic anisotropy, 100% remanence, and a coercive field of 76 kA/m at room temperature. The coercive field is a strong function of temperature and decreases to zero at 250 °C. In this layered film regular domains can be written with low applied fields (below 50 kA/m) and the writing threshold is about 4 mW. Their good magnetic and magneto‐optical properties together with their high corrosion resistance make these layers promising candidates for magneto‐optical recording. |
| Databáze: | OpenAIRE |
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