Carregant...
Fitxers
Tipus de document
ArticleVersió
Versió publicadaData de publicació
Llicència de publicació
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/223436
Multicaloric effects and magnetostructural coupling in the Cr2Ge2Te6 van der Waals crystal
Títol de la revista
Director/Tutor
ISSN de la revista
Títol del volum
Recurs relacionat
Resum
Materials with significant coupling between magnetism and their crystal structure are prone to exhibit multicaloric effects, which offer a novel approach to addressing the bottlenecks of ecologic solid-state refrigeration by optimizing the interplay of multiple driving fields. Here we uncover the multicaloric properties of CrGeTe, establishing ferromagnetic van der Waals (vdW) crystals, famous for their spintronics applications, as a previously unrecognized class of multicaloric materials. By combining magnetization measurements with an ab initio disordered local moment theory, we report, for the first time, pronounced barocaloric and multicaloric effects induced by the application of magnetic fields and hydrostatic pressure around CrGeTe’s ferromagnetic phase transition. Our experimental and ab initio analysis quantifies the underlying magnetostructural coupling in this material, which accounts for approximately 25% of the total multicaloric entropy change. Significant multicaloric effects are expected to be found in other vdW ferromagnets with strong magnetostructural coupling.
Matèries
Matèries (anglès)
Citació
Citació
ABADIA-HUGUET, Aleix, MENDIVE TAPIA, Eduardo, STERN TAULATS, Enric, PLANES VILA, Antoni, EGGERT, Benedikt, WENDE, Heiko, ACET, Mehmet, STURZA, Mihai-ionut, KOHLMANN, Holger, COSTACHE, Marius v., MAÑOSA, Lluís. Multicaloric effects and magnetostructural coupling in the Cr2Ge2Te6 van der Waals crystal. _Applied Materials Today_. 2025. Vol. 44, núm. 102749. [consulta: 23 de gener de 2026]. ISSN: 2352-9407. [Disponible a: https://hdl.handle.net/2445/223436]