Normal State Electronic Structure and the Superconducting Energy Gap in HTSC’s as Determined from Photoemission Spectroscopy

A. J. Arko, R. S. List, R. J. Bartlett,S.-W. Cheong,Z. Fisk,J. D. Thompson, C. G. Olson,A.-B. Yang,R. Liu, C. Gu,B. W. Veal, J. Z. Liu, A. P. Paulikas, K. Vandervoort, H. Claus,J. C. Campuzano

mag（1989）

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摘要

Photoemission spectroscopy is utilized to determine the electronic structure of high-Tc materials. The observation of dispersive bands at EF suggests a Fermi surface similar to that obtained from a band calculation. These results, together with a BCS-like energy gap, are not inconsistent with the notion of a Fermi liquid consisting of hybridized p-d bands.

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关键词

Photoemission,Band Structure,Fermi Surface,BCS Gap,Correlated Fermi Liquid

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