Isothermal entropy changes in nanocomposite Co:Ni₆₇Cu₃₃

Authors

Steven A. Michalski, University of Nebraska-LincolnFollow
Ralph Skomski, University of Nebraska-LincolnFollow
Xingzhong Li, University of Nebraska-LincolnFollow
Damien Le Roy, University of Nebraska-LincolnFollow
Tathagata Mukherjee, University of Nebraska-LincolnFollow
Christian Binek, University of Nebraska-LincolnFollow
David J. Sellmyer, NCMNFollow

Document Type

Article

Date of this Version

2012

Citation

JOURNAL OF APPLIED PHYSICS 111, 07A930 (2012). doi:10.1063/1.3676423

Comments

Copyright © 2012 American Institute of Physics. Used by Permission.

Abstract

The temperature-dependent magnetic properties of artificial rare-earth, free-magnetic nanostructures are investigated for magnetic cooling. We consider two-phase nanocomposites, where 2 nm nanoclusters of cobalt are embedded in a Ni₆₇Cu₃₃ matrix. Several composite films were produced by cluster deposition. The average Co nanocluster size can be tuned by varying the deposition conditions. Isothermalmagnetization curves weremeasured at various temperatures 150K