2017年
Deep melting reveals liquid structural memory and anomalous ferromagnetism in bismuth
Proceedings of the National Academy of Sciences of the United States of America
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- 巻
- 114
- 号
- 13
- 開始ページ
- 3375
- 終了ページ
- 3380
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1073/pnas.1615874114
- 出版者・発行元
- NATL ACAD SCIENCES
As an archetypal semimetal with complex and anisotropic Fermi surface and unusual electric properties (e.g., high electrical resistance, large magnetoresistance, and giant Hall effect), bismuth (Bi) has played a critical role in metal physics. In general, Bi displays diamagnetism with a high volumetric susceptibility (similar to 10(-4)). Here, we report unusual ferromagnetism in bulk Bi samples recovered from a molten state at pressures of 1.4-2.5 GPa and temperatures above similar to 1,250 K. The ferromagnetism is associated with a surprising structural memory effect in the molten state. On heating, low-temperature Bi liquid (L) transforms to a more randomly disordered high-temperature liquid (L') around 1,250 K. By cooling from above 1,250 K, certain structural characteristics of liquid L' are preserved in L. Bi clusters with characteristics of the liquid L' motifs are further preserved through solidification into the Bi-II phase across the pressure-independent melting curve, which may be responsible for the observed ferromagnetism.
- リンク情報
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- DOI
- https://doi.org/10.1073/pnas.1615874114
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/28289195
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000397607300056&DestApp=WOS_CPL
- Scopus Url
- http://www.scopus.com/inward/record.url?eid=2-s2.0-85016425324&partnerID=MN8TOARS 本文へのリンクあり
- URL
- http://orcid.org/0000-0001-5916-7524
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85016425324&origin=inward
- ID情報
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- DOI : 10.1073/pnas.1615874114
- ISSN : 0027-8424
- eISSN : 1091-6490
- ORCIDのPut Code : 34976351
- PubMed ID : 28289195
- SCOPUS ID : 85016425324
- Web of Science ID : WOS:000397607300056