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Properties of the H-T phase diagram of the 3-K phase in eutectic Sr2RuO4-Ru: Evidence for chiral superconductivity
https://repo.qst.go.jp/records/78001
https://repo.qst.go.jp/records/78001c22b21bf-5a8f-43cb-ab17-ed196e381412
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-12-16 | |||||
タイトル | ||||||
タイトル | Properties of the H-T phase diagram of the 3-K phase in eutectic Sr2RuO4-Ru: Evidence for chiral superconductivity | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Kaneyasu, Hirono
× Kaneyasu, Hirono× Enokida, Yuya× Nomura, Takuji× Hasegawa, Yasumasa× Sakai, Toru× Sigrist, Manfred× Takuji, Nomura× Toru, Sakai |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We use the Ginzburg-Landau theory for a chiral p-wave superconductor to describe the filamentary superconducting phase nucleating at temperatures higher than the bulk transition temperature near the interfaces between Ru metal and Sr2RuO4 in eutectic Sr2RuO4-Ru.The peculiar phase diagram of magnetic field versus temperature shows very distinct properties for different directions of the magnetic field. A clear feature of the magnetic fields in the basal plane of Sr2RuO4, perpendicular to the chiral axis (c axis), is the occurrence of a second superconducting transition with a new order parameter visible as a zero-bias anomaly in tunneling spectroscopy. For the field along the c axis of Sr2RuO4, two transitions merge, indicating that the field drives the second-order parameter through the paramagnetic coupling to a chiral supercurrent. The resulting phenomenology shows that the assumption of a chiral superconducting order parameter in Sr2RuO4 yields an image reproducing the qualitative properties observed in the experiment. This discussion is qualitatively analogous to thecorresponding chiral even- and odd-parity channels. | |||||
書誌情報 |
Physical Review B 巻 100, p. 214501-1-214501-9, 発行日 2019-12 |
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出版者 | ||||||
出版者 | アメリカ物理学会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2469-9950 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1103/PhysRevB.100.214501 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.100.214501 |