Magnetocaloric effect of Co(S1-xSex)2 under high pressure

Osamu Sadakuni, Akihiro Mituda, Hirofumi Wada

研究成果: ジャーナルへの寄稿記事

7 引用 (Scopus)

抄録

We examined the magnetocaloric effect of Co(S1-xSe x)2, which shows typical itinerant electron metamagnetism, under high pressures up to 1.2 GPa. It was found that the magnetic entropy change, δSM, of x = 0 increases with increasing pressure, while that for x = 0:05 is not sensitive to pressure. For x = 0:08, δS M is decreased with pressure. The temperature dependence of δSM was calculated on the basis of the spin fluctuation theory of itinerant electron metamagnetism. The calculated results reproduce the experimental δSM-T curves well. The pressure dependence of TC of Co(S1-xSex)2 is also discussed.

元の言語英語
記事番号024701
ジャーナルJournal of the Physical Society of Japan
79
発行部数2
DOI
出版物ステータス出版済み - 2 2010

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fluctuation theory
pressure dependence
electrons
entropy
temperature dependence
curves

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Magnetocaloric effect of Co(S1-xSex)2 under high pressure. / Sadakuni, Osamu; Mituda, Akihiro; Wada, Hirofumi.

:: Journal of the Physical Society of Japan, 巻 79, 番号 2, 024701, 02.2010.

研究成果: ジャーナルへの寄稿記事

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AB - We examined the magnetocaloric effect of Co(S1-xSe x)2, which shows typical itinerant electron metamagnetism, under high pressures up to 1.2 GPa. It was found that the magnetic entropy change, δSM, of x = 0 increases with increasing pressure, while that for x = 0:05 is not sensitive to pressure. For x = 0:08, δS M is decreased with pressure. The temperature dependence of δSM was calculated on the basis of the spin fluctuation theory of itinerant electron metamagnetism. The calculated results reproduce the experimental δSM-T curves well. The pressure dependence of TC of Co(S1-xSex)2 is also discussed.

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