Spectroscopy of a Single Superconducting Fine Particle Using a Scanning Tunneling Microscope
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概要
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We have carried out spectroscopy of a single superconducting fine particle using a scanning tunneling microscope (STM). We observed the superconducting energy gap by making the tunnel resistance between the STM tip and the particle very low to avoid the Coulomb blockade. We measured the particle-size dependence of the spacing between the two peaks 2⊿_<p-p> in the tunneling spectrum. It is found that 2⊿_<p-p> increases with decreasing particle diameter from 250 Å to 50 Å. We discuss the result in connection with the fluctuation of the order parameter.
- 社団法人日本物理学会の論文
- 1995-04-15
著者
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YAGI Ryuta
Department of Pure and Applied Sciences, University of Tokyo
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Yagi Ryuta
Department Of Physics Faculty Of Science University Of Tokyo
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Yagi Ryuta
Department Of Physics School Of Science University Of Tokyo
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Kobayashi Shun-ichi
Department of Physics, Faculty of Science, University of Tokyo
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Kobayashi Shun-ichi
Department Of Physics Faculty Of Science University Of Tokyo
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Uchihashi Takashi
Department of Physics, School of Science, University of Tokyo
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Kobayashi Shun-ichi
Department Of Physics School Of Science University Of Tokyo
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Kobayashi Shunichi
Department Of Physics Graduate School Of Science The University Of Tokyo
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Uchihashi Takashi
Department Of Physics School Of Science University Of Tokyo
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Kobayashi Shun-ichi
Department Of Pediatrics Institute Of Health Bioscience The University Of Tokushima Graduate School
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Kobayashi Shunichi
Department of Physics, Faculty of Science, University of Tokyo
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Kobayashi Shun-ichi
Department of Functional Machinery and Mechanics, Shinshu University
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Kobayashi Shun-ichi
Department of Physics,Graduate School of Science,The University of Tokyo
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