| アイテムタイプ |
学術雑誌論文 / Journal Article.(1) |
| 公開日 |
2019-08-26 |
| 書誌情報 |
en : Journal of Magnetism and Magnetic Materials
巻 465,
p. 260-269,
発行日 2018-11-01
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| タイトル |
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|
タイトル |
Specific heat in magnetic field and magnetocaloric effects of α-R2S3 (R = Tb, Dy) single crystals |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Rare earth sulfides |
| キーワード |
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|
言語 |
en |
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主題Scheme |
Other |
|
主題 |
Specific heat |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Magnetocaloric effect |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Successive magnetic phase transition |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
国, 慶
TEGUS, O
戎, 修二
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| 室蘭工業大学研究者データベースへのリンク |
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表示名 |
戎 修二（EBISU Shuji） |
|
URL |
http://rdsoran.muroran-it.ac.jp/html/100000219_ja.html |
| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
The magnetocaloric effects (MCE) of α-Tb2S3 and α-Dy2S3 single crystals exhibiting successive antiferromagnetic (AFM) transitions have been investigated by analyzing specific heat measured in magnetic field. The temperature dependence of specific heat in the vicinity of the successive transitions shows obvious distinction depending on the orientations of the applied magnetic field for both α-Tb2S3 and α-Dy2S3 that having orthorhombic crystal structures. When the magnetic field is increased, the specific heat is as follows: For α-Tb2S3 in H‖b, the peak around TN2 shifts to lower temperature but the other one peak around TN1 barely moves; In H⊥b, the peak around TN2 has no shift almost within 3 T but suddenly moves to lower temperature in 4 T and the other one peak around TN1 shifts to lower temperature in specific heat versus temperature. In the case of α-Dy2S3, the two peaks around TN2 and TN1 shift to lower temperatures in H‖b but move to higher temperatures when the magnetic field is increased up to 5 T by H⊥b in spite of antiferromagnetic transitions. Therefore, the maximum value and corresponding temperature of both isothermal magnetic entropy change (ΔSm) and adiabatic temperature change (ΔTad) in the magnetic field H⊥b are extremely different in low temperature range from that in the field of H‖b. The results propone that the MCE of α-Tb2S3 and α-Dy2S3 could be controlled at low temperature by the magnitude and orientation of magnetic field. It also indicates that the refrigerating capacity and thermal absorption capacity will be controlled by changing magnitude and orientation of magnetic field on the α-Tb2S3 and α-Dy2S3 single crystals. |
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言語 |
en |
| 出版者 |
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出版者 |
Elsevier |
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言語 |
en |
| 出版者版へのリンク |
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表示名 |
10.1016/j.jmmm.2018.05.072 |
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URL |
https://doi.org/10.1016/j.jmmm.2018.05.072 |
| DOI |
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|
関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.jmmm.2018.05.072 |
| 日本十進分類法 |
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主題Scheme |
NDC |
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主題 |
436 |
| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
0304-8853 |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA00701394 |
| 権利 |
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権利情報 |
© 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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言語 |
en |
| 著者版フラグ |
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出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| フォーマット |
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内容記述タイプ |
Other |
|
内容記述 |
application/pdf |
JMMM_465_260_269 (2.1 MB)
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