論文

査読有り
2016年

Magnetocaloric effect in a cluster-glass system Ho5Pd2-xNix

TMU INTERNATIONAL SYMPOSIUM ON NEW QUANTUM PHASES EMERGING FROM NOVEL CRYSTAL STRUCTURE
  • Saori Toyoizumi
  • ,
  • Hideaki Kitazawa
  • ,
  • Kengo Morita
  • ,
  • Akira Tamaki

683
012036
記述言語
英語
掲載種別
研究論文(国際会議プロシーディングス)
DOI
10.1088/1742-6596/683/1/012036
出版者・発行元
IOP PUBLISHING LTD

In order to investigate the effect of chemical pressure on the large magnetocaloric effect in Ho5Pd2, we conducted X-ray diffraction, magnetization, and specific heat measurements on Ho5Pd2-xNix(0 <= x <= 1.0) rare-earth intermetallic compounds. The linear x dependence of the lattice constant a suggests that Ni is replaced with Pd in the case of Ho5Pd2-xNix (0 <= x <= 0.5). The spin-glass transition temperature T-g and paramagnetic Curie temperature theta(p) indicate a weak oscillatory x dependence. However, the magnetic entropy change -Delta S-m and the relative cooling power (RCP) are rapidly suppressed with increasing x. These large reductions in -Delta S-m and RCP cannot be explained only in terms of normal Ruderman-Kittel-Kasuya-Yoshida (RKKY)-type indirect exchange interactions.

Web of Science ® 被引用回数 : 1

リンク情報
DOI
https://doi.org/10.1088/1742-6596/683/1/012036
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000372176100036&DestApp=WOS_CPL

エクスポート
BibTeX RIS