Magnetocaloric properties of (MnFe)2PGe and (MnFe)2PSi compounds fabricated by a melting method

Masahiro Hirashima, Hirofumi Wada

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

The compounds (MnFe)2PGe and (MnFe)2PSi are known to exhibit giant magnetocaloric effects due to a first-order magnetic transition (FOMT) near room temperature. These materials are usually prepared by a solid-phase reaction method, so that they are porous and brittle. In this study, we have fabricated (MnFe)2PGe and (MnFe)2PSi compounds by melting as-sintered compounds and examined structural and magnetic properties. It is found that for both compounds, the crystal structure is unchanged by melting. As-sintered samples undergo a sharp FOMT, while the samples after melting exhibit a broad magnetic transition. On the other hand, a sharp FOMT recovers by post-annealing. The origins of disappearance and recovery of the FOMT will be discussed.

本文言語英語
ホスト出版物のタイトルFrontiers in Materials Science, FMS 2015
ホスト出版物のサブタイトルProceedings of the 2nd International Symposium on Frontiers in Materials Science
編集者Masato Yoshiya, Nam-Nhat Hoang, Markus Munzenberg, Tomoyuki Yamamoto
出版社American Institute of Physics Inc.
ISBN(電子版)9780735414211
DOI
出版ステータス出版済み - 8 26 2016
イベント2nd International Symposium on Frontiers in Materials Science, FMS 2015 - Tokyo, 日本
継続期間: 11 19 201511 21 2015

出版物シリーズ

名前AIP Conference Proceedings
1763
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

その他

その他2nd International Symposium on Frontiers in Materials Science, FMS 2015
Country日本
CityTokyo
Period11/19/1511/21/15

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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