Low temperature scanning tunneling spectroscopy of Bi2Sr2CaCu2O8

Qun Chen; K. W. Ng

doi:10.1016/0925-8388(92)90329-8

Low temperature scanning tunneling spectroscopy of Bi₂Sr₂CaCu₂O₈

Qun Chen, K. W. Ng

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

A low temperature scanning tunneling microscope was used to measure the energy gap of Bi₂Sr₂CaCu₂O₈ in the direction perpendicular to the a-b plane. The derivative curve differs significantly from that expected for a Bardeen-Cooper-Schrieffer density of states. No multiple gap features have been observed. The energy gap was consistently measured to be about 21 meV.

Original language	English
Pages (from-to)	321-325
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	181
Issue number	1-2
DOIs	https://doi.org/10.1016/0925-8388(92)90329-8
State	Published - Apr 3 1992

Bibliographical note

Funding Information:
We gratefully thank Dr. H. J. Tao, Dr. Farun Lu and Dr. E. L. Wolf of Polytechnic University for providing the 2:2:1:2 samples for this experiment. This work is supported by the National Science Foundation (under Grant DMR 8913854) and the University of Kentucky Research Foundation.

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/0925-8388(92)90329-8

Cite this

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abstract = "A low temperature scanning tunneling microscope was used to measure the energy gap of Bi2Sr2CaCu2O8 in the direction perpendicular to the a-b plane. The derivative curve differs significantly from that expected for a Bardeen-Cooper-Schrieffer density of states. No multiple gap features have been observed. The energy gap was consistently measured to be about 21 meV.",

author = "Qun Chen and Ng, {K. W.}",

note = "Funding Information: We gratefully thank Dr. H. J. Tao, Dr. Farun Lu and Dr. E. L. Wolf of Polytechnic University for providing the 2:2:1:2 samples for this experiment. This work is supported by the National Science Foundation (under Grant DMR 8913854) and the University of Kentucky Research Foundation.",

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