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Field dependence of the magnetocaloric effect in core-shell nanoparticles

Journal of Applied Physics, ISSN: 0021-8979, Vol: 107, Issue: 9
2010
  • 69
    Citations
  • 0
    Usage
  • 41
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    69
    • Citation Indexes
      69
  • Captures
    41

Conference Paper Description

The field dependence of the magnetic entropy change peak at the low temperature surface spin freezing transition in chemically synthesized, monodispersed Co, Co-Ag, and Ni-Ag core-shell nanoparticles is studied, with the aim of gaining insight into the critical exponents of this transition. It is evidenced that although the magnitude of the peak entropy change and position of the peak can be tuned by changing the composition and nature (metallic or organic) of the shell and surfactant layers, the characteristics of the spin freezing transition are not altered. The field dependence of the refrigerant capacity also confirms this finding. © 2010 American Institute of Physics.

Bibliographic Details

V. Franco; A. Conde; Deepti Sidhaye; B. L. V. Prasad; P. Poddar; S. Srinath; M. H. Phan; H. Srikanth

AIP Publishing

Physics and Astronomy

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