Giant and time-dependent magnetocaloric effect in high-spin molecular magnets
We have measured and calculated the magnetocaloric effect in macroscopic samples of oriented high-spin molecular clusters like Mn12 and Fe8 as a function of the temperature and both the intensity and the sweeping rate of the applied magnetic field. We have observed a high magnetic entropy variation...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2000 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:116274 |
| Acceso en línea: | https://ddd.uab.cat/record/116274 https://dx.doi.org/urn:doi:10.1063/1.1325393 |
| Access Level: | acceso abierto |
| Palabra clave: | Entropy Magnetic fields Magnetocaloric effect Atomic and molecular clusters Magnetic field measurements Magnetic moments Molecular magnets |
| Sumario: | We have measured and calculated the magnetocaloric effect in macroscopic samples of oriented high-spin molecular clusters like Mn12 and Fe8 as a function of the temperature and both the intensity and the sweeping rate of the applied magnetic field. We have observed a high magnetic entropy variation around the blocking temperature of the magnetic moment of molecules and calculated the shift of the entropy variation and cooling temperature, with the sweeping rate of the magnetic field. |
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