Size-Dependent Superconductivity of Pb Islands under Magnetic Fields Studied by Low-Temperature Scanning Tunneling Microscopy/Spectroscopy
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概要
- 論文の詳細を見る
Using a low-temperature scanning tunneling microscope, we investigated the superconducting gap of single-crystalline Pb islands, approximately 100 nm in diameter with 11–13 monolayers (3–4 nm) in thickness, under magnetic fields. The superconducting gap was observed under magnetic fields up to 2.2 T, higher than the critical field of bulk Pb. The critical fields of the Pb islands were evaluated from the magnetic field dependence of the zero-bias conductances. We found that the critical field depends on the volume $V$ of the Pb islands as $V^{-1/2}$.
- Japan Society of Applied Physicsの論文
- 2007-10-25
著者
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Ono Masanori
The Institute For Solid State Physics The University Of Tokyo
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Hasegawa Yukio
The Institute For Solid State Physics The University Of Tokyo
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Sakata Hideaki
Department Of Physics Faculty Of Science Tokyo Institute Of Technology
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Eguchi Toyoaki
The Institute For Solid State Physics The University Of Tokyo
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Ono Masanori
The Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
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Nishio Takahiro
The Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
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Sakata Hideaki
Department of Physics, Tokyo University of Science, Tokyo 162-8601, Japan
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Sakata Hideaki
Department of Otolaryngology, Saitama Children's Medical Center
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