Mossbauer and magnetization studies of amorphous NdFeB compositionally modulated thin films
Several NdFeB compositionally modulated thin films are studied by using both conversion electron Mossbauer spectra and SQUID (superconducting quantum-interference-device) magnetometry. Both the hyperfine fields and the easy magnetization magnitude are not correlated with the modulation characteristi...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1988 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/8606 |
| Acceso en línea: | https://hdl.handle.net/2445/8606 |
| Access Level: | acceso abierto |
| Palabra clave: | Efecte de Mössbauer Propietats magnètiques Aliatges Substàncies amorfes Pel·lícules fines Interaccions hiperfines Mossbauer effect Magnetic properties Alloys Amorphous substances Thin films Hyperfine interactions |
| Sumario: | Several NdFeB compositionally modulated thin films are studied by using both conversion electron Mossbauer spectra and SQUID (superconducting quantum-interference-device) magnetometry. Both the hyperfine fields and the easy magnetization magnitude are not correlated with the modulation characteristic length (lambda) while the magnetization perpendicular to the thin-film plane decreases as lambda increases. The spectra were recorded at room temperature being the gamma rays perpendicular to the substrate plane. The magnetization measurements were recorded by using a SHE SQUID magnetometer in applied magnetic fields up to 5.5 T and in the temperature range between 1.8 and 30 K. |
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