Energy gap of proximity-effect-induced superconductivity in NbCu multilayers

G. q. Zheng; Y. Kitaoka; Y. Oda; Y. Kohori; K. Asayama; Y. Obi; H. Fujimori; R. Aoki

doi:10.1016/S0921-4526(90)81090-B

Energy gap of proximity-effect-induced superconductivity in NbCu multilayers

G. q. Zheng, Y. Kitaoka, Y. Oda, Y. Kohori, K. Asayama, Y. Obi, H. Fujimori, R. Aoki

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

1 Citation (Scopus)

Abstract

The nuclear spin-lattice relaxation rate, T₁^-1, for ⁶³Cu in zero field from 4.2K down to 0.3K, has been measured in a series of NbCu multilayers. A BCS-like temperature dependence of T₁^-1 followed gradually by A Korringa-law-like one at low temperatures, has been found. It has been confirmed that such behavior of T₁^-1 comes from the anisotropic energy gap in the Cu-layers.

Original language	English
Pages (from-to)	481-482
Number of pages	2
Journal	Physica B: Physics of Condensed Matter
Volume	165-166
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4526(90)81090-B
Publication status	Published - Aug 1990
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(90)81090-B

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title = "Energy gap of proximity-effect-induced superconductivity in NbCu multilayers",

abstract = "The nuclear spin-lattice relaxation rate, T1-1, for 63Cu in zero field from 4.2K down to 0.3K, has been measured in a series of NbCu multilayers. A BCS-like temperature dependence of T1-1 followed gradually by A Korringa-law-like one at low temperatures, has been found. It has been confirmed that such behavior of T1-1 comes from the anisotropic energy gap in the Cu-layers.",

author = "Zheng, {G. q.} and Y. Kitaoka and Y. Oda and Y. Kohori and K. Asayama and Y. Obi and H. Fujimori and R. Aoki",

year = "1990",

month = aug,

doi = "10.1016/S0921-4526(90)81090-B",

language = "English",

volume = "165-166",

pages = "481--482",

journal = "Physica B: Condensed Matter",

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T1 - Energy gap of proximity-effect-induced superconductivity in NbCu multilayers

AU - Zheng, G. q.

AU - Kitaoka, Y.

AU - Oda, Y.

AU - Kohori, Y.

AU - Asayama, K.

AU - Obi, Y.

AU - Fujimori, H.

AU - Aoki, R.

PY - 1990/8

Y1 - 1990/8

N2 - The nuclear spin-lattice relaxation rate, T1-1, for 63Cu in zero field from 4.2K down to 0.3K, has been measured in a series of NbCu multilayers. A BCS-like temperature dependence of T1-1 followed gradually by A Korringa-law-like one at low temperatures, has been found. It has been confirmed that such behavior of T1-1 comes from the anisotropic energy gap in the Cu-layers.

AB - The nuclear spin-lattice relaxation rate, T1-1, for 63Cu in zero field from 4.2K down to 0.3K, has been measured in a series of NbCu multilayers. A BCS-like temperature dependence of T1-1 followed gradually by A Korringa-law-like one at low temperatures, has been found. It has been confirmed that such behavior of T1-1 comes from the anisotropic energy gap in the Cu-layers.

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