Artículo
Nanostructuring as a procedure to control the field dependence of the magnetocaloric effect
Autor/es | Doblas, David
Moreno Ramírez, Luis Miguel Franco García, Victorino Conde Amiano, Alejandro Svalov, A.V. Kurlyandskaya, G.V. |
Coordinador/Director | Franco García, Victorino |
Departamento | Universidad de Sevilla. Departamento de Física de la Materia Condensada |
Fecha de publicación | 2017-01 |
Fecha de depósito | 2020-07-15 |
Publicado en |
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Resumen | In this work, the field dependence of the magnetocaloric effect of Gd bulk samples has been enhanced through
nanostructuring of the material. Nanostructuring consists in multilayers preparation by alternative rf-sputter ... In this work, the field dependence of the magnetocaloric effect of Gd bulk samples has been enhanced through nanostructuring of the material. Nanostructuring consists in multilayers preparation by alternative rf-sputtering deposition of Gd layers and Ti spacers onto glass substrates. The results obtained for the multilayers were compared to those obtained for the Gd bulk. Assuming a power law for the field dependence of the magnetic entropy change (ΔSM ∝ Hn ), higher field dependences close to the transition in a wider temperature range are obtained for the multilayer material (n = 1.0) with respect to the bulk counterpart (n = 0.78). The effect of a Curie temperature distribution in the multilayer material (due to variations of the layer thickness) has been studied through numerical simulations to explain the observed field dependence of the magnetocaloric effect, obtaining a remarkable agreement between experiments and results. |
Agencias financiadoras | Ministerio de Economía y Competitividad (MINECO). España European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) Junta de Andalucía Ministry of Education and Science of the Russian Federation |
Identificador del proyecto | MAT2013-45165-P
MAT2016-77265-R Project No. 2582 |
Cita | Doblas, D., Moreno Ramírez, L.M., Franco García, V., Conde Amiano, A., Svalov, A.V. y Kurlyandskaya, G.V. (2017). Nanostructuring as a procedure to control the field dependence of the magnetocaloric effect. Materials and Design, 114, 214-219. |
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