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Enhanced magnetocaloric properties of FeZr amorphous films by C ion implantation
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics. Univ Hassan II Casablanca, Fac Sci Ain Chock, LPMMAT, BP 5366, Casablanca, Morocco..
Univ Hassan II Casablanca, Fac Sci Ain Chock, LPMMAT, BP 5366, Casablanca, Morocco..
Univ Hassan II Casablanca, Fac Sci Ain Chock, LPMMAT, BP 5366, Casablanca, Morocco..
IPCMS, UMR UDS CNRS UDS ECPM 7504, 23 Rue Loess,BP 43, F-67034 Strasbourg 2, France..
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2016 (English)In: Materials letters (General ed.), ISSN 0167-577X, E-ISSN 1873-4979, Vol. 175, 5-8 p.Article in journal (Refereed) Published
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Abstract [en]

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.
Keyword [en]
Magnetocaloric materials, Thin films, Relative cooling power, Magnetic entropy, Ion implantation
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-298050DOI: 10.1016/j.matlet.2016.03.124ISI: 000375851200002OAI: oai:DiVA.org:uu-298050DiVA: diva2:946885
Funder
Swedish Research Council
Available from: 2016-07-06 Created: 2016-06-29 Last updated: 2016-07-06Bibliographically approved

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Hjörvarsson, BjörgvinJönsson, Petra
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