Download all files (1.57MB)

コレクション

引用

説明:

Applying a magnetic field to a solid changes its thermal-transport properties. Although such magneto-thermal-transport phenomena are usually small effects, giant magneto-thermal resistance has recently been observed in spintronic materials and superconductors, opening up new possibilities in thermal management technologies. However, the thermal conductivity conventionally changes only when a magnetic field is applied due to the absence of nonvolatility, which limits potential applications of thermal switching devices. Here, we report the observation of nonvolatile thermal switching that changes the electron thermal conductivity when a magnetic field is applied and retains the value even when the field is turned off. This unconventional magneto-thermal switching arises in commercial Sn-Pb solders and is realized by phase-separated superconducting states and resultant nonuniform magnetic flux distributions. This result confirms the versatility of the observed phenomenon and aids the development of active solid-state thermal management devices.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: thermal switch, superconductor, magneto-thermal switching

刊行年月日: 2024-03-15

出版者: Springer Science and Business Media LLC

掲載誌:

• Communications Materials (ISSN: 26624443) vol. 5 34

研究助成金:

• MEXT | JST | Exploratory Research for Advanced Technology JPMJER2201

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1038/s43246-024-00465-9

関連資料:

その他の識別子:

連絡先:

更新時刻: 2024-05-24 12:30:18 +0900

MDRでの公開時刻: 2024-05-24 12:30:18 +0900