Observation of a-b plane gap anisotropy in Bi2Sr2CaCu2O8 with a low temperature scanning tunneling microscope

Jeffrey Kane; Qun Chen; K. W. Ng; H. J. Tao

doi:10.1103/PhysRevLett.72.128

Observation of a-b plane gap anisotropy in Bi2Sr2CaCu2O8 with a low temperature scanning tunneling microscope

Jeffrey Kane, Qun Chen, K. W. Ng, H. J. Tao

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Abstract

Significant gap anisotropy within the a-b plane of Bi2Sr2CaCu2O8 has been observed with a low temperature scanning tunneling microscope. The energy gap is largest along the a-axis direction, with Δp-p=36.6 meV and decreases gradually to a value of 23 meV along the direction 45°from the a axis. The tunneling data have been fit well using a simple model which assumes a d-wave-pairing energy gap, and allows tunneling in all directions close to the normal of the surface.

Original language	English
Pages (from-to)	128-131
Number of pages	4
Journal	Physical Review Letters
Volume	72
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.72.128
State	Published - 1994

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.72.128

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title = "Observation of a-b plane gap anisotropy in Bi2Sr2CaCu2O8 with a low temperature scanning tunneling microscope",

abstract = "Significant gap anisotropy within the a-b plane of Bi2Sr2CaCu2O8 has been observed with a low temperature scanning tunneling microscope. The energy gap is largest along the a-axis direction, with Δp-p=36.6 meV and decreases gradually to a value of 23 meV along the direction 45°from the a axis. The tunneling data have been fit well using a simple model which assumes a d-wave-pairing energy gap, and allows tunneling in all directions close to the normal of the surface.",

author = "Jeffrey Kane and Qun Chen and Ng, {K. W.} and Tao, {H. J.}",

year = "1994",

doi = "10.1103/PhysRevLett.72.128",

language = "English",

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T1 - Observation of a-b plane gap anisotropy in Bi2Sr2CaCu2O8 with a low temperature scanning tunneling microscope

AU - Kane, Jeffrey

AU - Chen, Qun

AU - Ng, K. W.

AU - Tao, H. J.

PY - 1994

Y1 - 1994

N2 - Significant gap anisotropy within the a-b plane of Bi2Sr2CaCu2O8 has been observed with a low temperature scanning tunneling microscope. The energy gap is largest along the a-axis direction, with Δp-p=36.6 meV and decreases gradually to a value of 23 meV along the direction 45°from the a axis. The tunneling data have been fit well using a simple model which assumes a d-wave-pairing energy gap, and allows tunneling in all directions close to the normal of the surface.

AB - Significant gap anisotropy within the a-b plane of Bi2Sr2CaCu2O8 has been observed with a low temperature scanning tunneling microscope. The energy gap is largest along the a-axis direction, with Δp-p=36.6 meV and decreases gradually to a value of 23 meV along the direction 45°from the a axis. The tunneling data have been fit well using a simple model which assumes a d-wave-pairing energy gap, and allows tunneling in all directions close to the normal of the surface.

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JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

ER -

Observation of a-b plane gap anisotropy in Bi2Sr2CaCu2O8 with a low temperature scanning tunneling microscope

Abstract

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