Vdovichev, S. N. Polushkin, N. I. Rodionov, I. D. Prudnikov, V. N. Chang, J. Fraerman, A. A. 2024-01-19T22:04:37Z 2024-01-19T22:04:37Z 2021-09-03 2018-07-26 2469-9950 https://pubs.kist.re.kr/handle/201004/121134 The isothermal magnetic entropy changes Delta S (i.e., the magnetocaloric potential) are studied in Ni80Fe20/Ni67Cu33/Co90Fe10/Mn80Ir20 stacks at temperatures near the Curie point of the Ni67Cu33 spacer by applying magnetic fields of a few milli-Tesla. Such fields were sufficient for toggling magnetic moments in the soft ferromagnetic layer ( Ni80Fe20). It is found that this switching provides a significant enhancement of Delta S in the heterostructure system with respect to that achieved in a single Ni67Cu33 film under such weak magnetic fields. Our finding is believed to have the potential to be utilized in magnetocaloric devices (e.g., thin-film coolers) that would be based on ferromagnetic/paramagnetic/ferromagnetic heterostructures and would operate with moderate magnetic fields. English AMER PHYSICAL SOC THIN-FILMS MAGNETORESISTANCE High magnetocaloric efficiency of a NiFe/NiCu/CoFe/MnIr multilayer in a small magnetic field Article 10.1103/PhysRevB.98.014428 1 Physical Review B, v.98, no.1 Physical Review B 98 1 scie scopus 000439786100002 2-s2.0-85051439037 Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Materials Science Physics Article THIN-FILMS MAGNETORESISTANCE magnetocaloric effect NiFe/NiCu/CoFe/IrMn magnetic multilayer magnetic entropy