Enhanced magnetocaloric properties of FeZr amorphous films by C ion implantation
2016 (English)In: Materials letters (General ed.), ISSN 0167-577X, E-ISSN 1873-4979, Vol. 175, 5-8 p.Article in journal (Refereed) PublishedText
For a high magnetic refrigeration efficiency, a large change of magnetic entropy (-Delta S-M) associated with a high relative cooling power (RCP) are highly desirable. Here, the ion implantation is used to enhance both parameters in FeZr amorphous films. A considerable enhancement of both (-Delta S-M) and RCP, from 0.66 to 1.01 J/kg K and 84.5 to 155.5 J/kg respectively, for the as-grown sample compared to the C -implanted sample is obtained for a magnetic field change of mu(0)Delta H = 1.5 T. The increase of (-Delta S-M) and RCP values, are attributed to the increase of the magnetization and the chemical inhomogeneity, respectively upon C implantation.
Place, publisher, year, edition, pages
2016. Vol. 175, 5-8 p.
Magnetocaloric materials, Thin films, Relative cooling power, Magnetic entropy, Ion implantation
IdentifiersURN: urn:nbn:se:uu:diva-298050DOI: 10.1016/j.matlet.2016.03.124ISI: 000375851200002OAI: oai:DiVA.org:uu-298050DiVA: diva2:946885
FunderSwedish Research Council