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PhysRevLett.111.056601.pdf | 580.91 kB | Adobe PDF | 見る/開く |
タイトル: | Extremely Large Magnetoresistance in the Nonmagnetic Metal PdCoO_{2} |
著者: | Takatsu, Hiroshi https://orcid.org/0000-0001-5792-0113 (unconfirmed) Ishikawa, Jun J. Yonezawa, Shingo https://orcid.org/0000-0002-7476-3604 (unconfirmed) Yoshino, Harukazu Shishidou, Tatsuya Oguchi, Tamio Murata, Keizo Maeno, Yoshiteru |
著者名の別形: | 米澤, 進吾 |
発行日: | Aug-2013 |
出版者: | American Physical Society |
誌名: | Physical Review Letters |
巻: | 111 |
号: | 5 |
論文番号: | 056601 |
抄録: | Extremely large magnetoresistance is realized in the nonmagnetic layered metal PdCoO2. In spite of a highly conducting metallic behavior with a simple quasi-two-dimensional hexagonal Fermi surface, the interlayer resistance reaches up to 35 000% for the field along the [11̅ 0] direction. Furthermore, the temperature dependence of the resistance becomes nonmetallic for this field direction, while it remains metallic for fields along the [110] direction. Such severe and anisotropic destruction of the interlayer coherence by a magnetic field on a simple Fermi surface is ascribable to orbital motion of carriers on the Fermi surface driven by the Lorentz force, but seems to have been largely overlooked until now. |
記述: | 単純な金属を磁気センサーに応用できる新メカニズムの発見. 京都大学プレスリリース. 2013-07-31. |
著作権等: | © 2013 American Physical Society |
URI: | http://hdl.handle.net/2433/176996 |
DOI(出版社版): | 10.1103/PhysRevLett.111.056601 |
PubMed ID: | 23952426 |
関連リンク: | https://www.kyoto-u.ac.jp/static/ja/news_data/h/h1/news6/2013/130731_1.htm |
出現コレクション: | 学術雑誌掲載論文等 |
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