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Thermal and magnetic properties of regenerator material Gd2O2S
https://doi.org/10.24517/00049669
https://doi.org/10.24517/00049669b1ce6f92-389c-4dcf-a78e-72333a61f980
| 名前 / ファイル | ライセンス | アクション |
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SC-PR-MATSUMOTO-K-012010.pdf (738.9 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||
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| 公開日 | 2018-01-05 | |||||||
| タイトル | ||||||||
| タイトル | Thermal and magnetic properties of regenerator material Gd2O2S | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
| 資源タイプ | journal article | |||||||
| ID登録 | ||||||||
| ID登録 | 10.24517/00049669 | |||||||
| ID登録タイプ | JaLC | |||||||
| 著者 |
Matsumoto, Koichi
× Matsumoto, Koichi× Numazawa, Takenori× Ura, Yutaro× Ujiyama, T.× Abe, Susumu |
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| 著者別表示 |
松本, 宏一
× 松本, 宏一
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| 提供者所属 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 金沢大学理工研究域数物科学系 | |||||||
| 書誌情報 |
Journal of Physics: Conference Series 巻 897, 号 1, p. 12010, 発行日 2017-09-21 |
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| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 1742-6588 | |||||||
| DOI | ||||||||
| 関連タイプ | isIdenticalTo | |||||||
| 識別子タイプ | DOI | |||||||
| 関連識別子 | 10.1088/1742-6596/897/1/012010 | |||||||
| 出版者 | ||||||||
| 出版者 | Institute of Physics Publishing | |||||||
| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | Magnetic materials play a significant role in improvement of regenerative cryocooler performance, because they have high volumetric specific heat at magnetic transition temperatures. Gadolinium oxysulfide (Gd2O2S, GOS) that has an antiferromagnetic transition at 5 K improved the cooling performance of cryocoolers when it was used in colder side of the second stage regenerator operating below 10 K. Small magnetic susceptibility and specific heat insensitive to magnetic field is important in order to reduce influence of magnetic field on the performance of cryocooler. We measured magnetization and specific heat of ceramic GOS in magnetic field up to 5 T. The magnetization of GOS represented typical temperature dependence for antiferromagnetic materials and no metamagnetic transition was observed. As for specific heat of GOS, peak temperature decreased from 5.5 to 5.0 K with increasing magnetic field from 0 to 5 T and the transitions remained sharp in magnetic fields. Thermal conductivity of GOS was observed to have very small magnetic field dependence. © Published under licence by IOP Publishing Ltd. | |||||||
| 権利 | ||||||||
| 権利情報 | Copyright © Published under licence by IOP Publishing Ltd. | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
