Impact of Surface Conditions on the Superconductivity of Si(111)-(√7 × √3)-In
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- Yoshizawa Shunsuke
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science
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- Kim Howon
- Institute for Solid State Physics, The University of Tokyo
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- Kawakami Takuto
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science
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- Nagai Yuki
- CCSE, Japan Atomic Energy Agency
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- Nakayama Tomonobu
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science
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- Hu Xiao
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science
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- Hasegawa Yukio
- Institute for Solid State Physics, The University of Tokyo
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- Uchihashi Takashi
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science
書誌事項
- タイトル別名
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- Impact of Surface Conditions on the Superconductivity of Si(111)-(√7 × √3)-In
説明
We performed low-temperature scanning tunneling microscopy and spectroscopy on Si(111)-(√7 × √3)-In in magnetic fields. Superconducting vortices were observed by mapping zero-bias conductance in an area consisting of flat terraces separated by atomic steps. While vortices in the terrace regions have an isotropic shape with a normal-state core, those at the atomic steps have anisotropic shapes and the superconductivity is only weakly suppressed in the cores. These properties are understood as a crossover from a normal vortex to a Josephson vortex. We conclude that the atomic steps work as Josephson junctions limiting the density of supercurrents. [DOI: 10.1380/ejssnt.2015.151]
収録刊行物
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- e-Journal of Surface Science and Nanotechnology
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e-Journal of Surface Science and Nanotechnology 13 (0), 151-154, 2015
公益社団法人 日本表面真空学会
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詳細情報 詳細情報について
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- CRID
- 1390282680162337280
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- NII論文ID
- 130005063564
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- ISSN
- 13480391
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
