Observation of the Finite Superconducting Gap States in La_<1.86>Sr_<0.14>CuO_<4-x> by Electron Tunneling
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概要
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In order to investigate symmetry of the Cooper pairing in high-T_c superconductors, quasiparticle tunneling studies were carried out by means of micro-break SIS junction which was in situ prepared at the LT-STM/STS stage. For La_<1.86>Sr_<0.14>CuO_<4-x> single crystal, a distinct gap structure with a definite bias range of almost zero conductance level was observed on the tunneling spectrum. This result is essentially different from the spectrum predicted by d-wave theories, and rather suggests s-wave superconductivity.
- 社団法人日本物理学会の論文
- 1994-07-15
著者
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AOKI Ryozo
Department of Physics,Faculty of Science,Kyushu University
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Aoki R
Department Of Electrical Engineering Faculty Of Engineering Osaka University
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Aoki R
Osaka Univ. Suita
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Aoki Ryozo
Osaka University Department Of Electrical Engineering
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Aoki Ryozo
Department Of Electrical Engineering Osaka University
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Murakami Hironaru
Department Of Electrical Engineering Osaka University
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Ohbuchi Syuzo
Department of Electrical Engineering, Osaka University
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Ohbuchi Syuzo
Department Of Electrical Engineering Osaka University
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