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

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

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ASJC Scopus subject areas

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

Cite this

Zheng, G. Q., Kitaoka, Y., Oda, Y., Kohori, Y., Asayama, K., Obi, Y., Fujimori, H., & Aoki, R. (1990). Energy gap of proximity-effect-induced superconductivity in NbCu multilayers. Physica B: Physics of Condensed Matter, 165-166(PART 1), 481-482. https://doi.org/10.1016/S0921-4526(90)81090-B

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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",

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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

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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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10.1016/S0921-4526(90)81090-B