POSITRON ANNIHILATION STUDY ON SUPERCONDUCTING SINGLE CRYSTAL BSCCO

POSITRON ANNIHILATION STUDY ON SUPERCONDUCTING SINGLE CRYSTAL BSCCO

Ⅰ. INTRODUCTIONPositron annihilation spectroscopy (PAS)is a sensitive probe for investigation of the electronic structure, the defects and phase transition of solids. For conventional superconductors, the BCS theory predicts a redistribution of occupied states in k space due to the formation of Coop...

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Veröffentlicht in:中国科学通报：英文版 1992 (8), p.646-650
1. Verfasser: 朱警生 周先意 龙期威 顾根大 蔡维理 阮耀钟 张裕恒
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annihilation
crystal
high
positron
single
superconductor
temperature
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description Ⅰ. INTRODUCTIONPositron annihilation spectroscopy (PAS)is a sensitive probe for investigation of the electronic structure, the defects and phase transition of solids. For conventional superconductors, the BCS theory predicts a redistribution of occupied states in k space due to the formation of Cooper pairs. The formation of Cooper pair leads to a smearing of the Fermi surface. Early theories suggested that one should observe an increase in positron
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INTRODUCTIONPositron annihilation spectroscopy (PAS)is a sensitive probe for investigation of the electronic structure, the defects and phase transition of solids. For conventional superconductors, the BCS theory predicts a redistribution of occupied states in k space due to the formation of Cooper pairs. The formation of Cooper pair leads to a smearing of the Fermi surface. Early theories suggested that one should observe an increase in positron</abstract></addata></record>
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subjects annihilation
crystal
high
positron
single
superconductor
temperature
title POSITRON ANNIHILATION STUDY ON SUPERCONDUCTING SINGLE CRYSTAL BSCCO
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