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Science 18 August 1989:
Vol. 245. no. 4919, pp. 731 - 733
DOI: 10.1126/science.245.4919.731
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Articles

Superconducting Gap in Bi-Sr-Ca-Cu-O by High-Resolution Angle-Resolved Photoelectron Spectroscopy

C. G. OLSON 1, R. LIU 1, A. -B. YANG 1, D. W. LYNCH 1, A. J. ARKO 2, R. S. LIST 2, B. W. VEAL 3, Y. C. CHANG 3, P. Z. JIANG 3, and A. P. PAULIKAS 3

1 Department of Physics and Ames Laboratory, USDOE, Iowa State University, Ames, IA 50010.
2 Los Alamos National Laboratory, Los Alamos, NM 87545.
3 Argonne National Laboratory, Argonne, IL 60439.

Detailed studies indicate a superconducting gap in the high-temperature superconductor Bi2Sr2CaCu2O8. Photoemission measurements with high energy and angle resolution isolate the behavior of a single band as it crosses the Fermi level in both the normal and superconducting states, giving support to the Fermi liquid picture. The magnitude of the gap is 24 millielectron volts.

Submitted on May 4, 1989
Accepted on June 21, 1989


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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