Crystallographic, magnetic and magnetocaloric properties in Yb-based alloy
The crystallographic and magnetic properties as well as the magnetocaloric effect (MCE) of the polycrystalline Yb0.5Gd0.5Ni5 alloy were investigated. The alloy crystallizes in the hexagonal CaCu5 structure. The magnetic properties showed the transition to a ferromagnetic state at Tc = 21.8 K. The he...
| Autores: | , , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universidad de Cantabria (UC) |
| Repositorio: | UCrea Repositorio Abierto de la Universidad de Cantabria |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unican.es:10902/28103 |
| Acceso en línea: | https://hdl.handle.net/10902/28103 |
| Access Level: | acceso abierto |
| Palabra clave: | Rare earth Magnetic properties Heat capacity Magnetocaloric effect Spin fluctuations |
| Sumario: | The crystallographic and magnetic properties as well as the magnetocaloric effect (MCE) of the polycrystalline Yb0.5Gd0.5Ni5 alloy were investigated. The alloy crystallizes in the hexagonal CaCu5 structure. The magnetic properties showed the transition to a ferromagnetic state at Tc = 21.8 K. The heat capacity confirmed such behaviour. The Sommerfeld coefficient yielded a heavy-fermion value 790 mJ/mol.K2. Moreover, a −ln T dependence below 3 K at zero applied magnetic field was observed. The magnetocaloric effect shows an asymmetric shape of the −ΔSM dependence due to the presence of spin fluctuations. |
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