Dimensional crossover and flux pinning of decoupled Cu50Ni 50/Nb multilayers

S. Y. Huang; J. J. Liang; T. C. Tsai; L. K. Lin; M. S. Lin; Shih-ying Hsu; S. F. Lee

doi:10.1063/1.2829607

Dimensional crossover and flux pinning of decoupled Cu₅₀Ni ₅₀/Nb multilayers

S. Y. Huang, J. J. Liang, T. C. Tsai, L. K. Lin, M. S. Lin, Shih-ying Hsu, S. F. Lee

Department of Electrophysics

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

5 Scopus citations

Abstract

The behaviors of superconducting transition temperature Tc and upper critical field Hc2 as a function of different superconductor thicknesses have been investigated in Cu50 Ni50 Nb trilayers and multilayers. We deduced superconductor critical thickness, below which superconductivity vanishes, by analyzing the data in terms of proximity theory. The temperature dependence of Hc2 measurement reveals the spatial dimensional crossover and the flux pinning mechanism in the superconductor. A strong pair-breaking effect was observed in the weak ferromagnetic Cu50 Ni50 layers from both measurements. We attribute our observation to the high interface transparency between Cu50 Ni50 and Nb.

Original language	English
Article number	07C704
Journal	Journal of Applied Physics
Volume	103
Issue number	7
DOIs	https://doi.org/10.1063/1.2829607
State	Published - 21 Apr 2008

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title = "Dimensional crossover and flux pinning of decoupled Cu50Ni 50/Nb multilayers",

abstract = "The behaviors of superconducting transition temperature Tc and upper critical field Hc2 as a function of different superconductor thicknesses have been investigated in Cu50 Ni50 Nb trilayers and multilayers. We deduced superconductor critical thickness, below which superconductivity vanishes, by analyzing the data in terms of proximity theory. The temperature dependence of Hc2 measurement reveals the spatial dimensional crossover and the flux pinning mechanism in the superconductor. A strong pair-breaking effect was observed in the weak ferromagnetic Cu50 Ni50 layers from both measurements. We attribute our observation to the high interface transparency between Cu50 Ni50 and Nb.",

author = "Huang, {S. Y.} and Liang, {J. J.} and Tsai, {T. C.} and Lin, {L. K.} and Lin, {M. S.} and Shih-ying Hsu and Lee, {S. F.}",

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T1 - Dimensional crossover and flux pinning of decoupled Cu50Ni 50/Nb multilayers

AU - Huang, S. Y.

AU - Liang, J. J.

AU - Tsai, T. C.

AU - Lin, L. K.

AU - Lin, M. S.

AU - Hsu, Shih-ying

AU - Lee, S. F.

PY - 2008/4/21

Y1 - 2008/4/21

N2 - The behaviors of superconducting transition temperature Tc and upper critical field Hc2 as a function of different superconductor thicknesses have been investigated in Cu50 Ni50 Nb trilayers and multilayers. We deduced superconductor critical thickness, below which superconductivity vanishes, by analyzing the data in terms of proximity theory. The temperature dependence of Hc2 measurement reveals the spatial dimensional crossover and the flux pinning mechanism in the superconductor. A strong pair-breaking effect was observed in the weak ferromagnetic Cu50 Ni50 layers from both measurements. We attribute our observation to the high interface transparency between Cu50 Ni50 and Nb.

AB - The behaviors of superconducting transition temperature Tc and upper critical field Hc2 as a function of different superconductor thicknesses have been investigated in Cu50 Ni50 Nb trilayers and multilayers. We deduced superconductor critical thickness, below which superconductivity vanishes, by analyzing the data in terms of proximity theory. The temperature dependence of Hc2 measurement reveals the spatial dimensional crossover and the flux pinning mechanism in the superconductor. A strong pair-breaking effect was observed in the weak ferromagnetic Cu50 Ni50 layers from both measurements. We attribute our observation to the high interface transparency between Cu50 Ni50 and Nb.

UR - http://www.scopus.com/inward/record.url?scp=42149132185&partnerID=8YFLogxK

U2 - 10.1063/1.2829607

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M3 - Article

AN - SCOPUS:42149132185

SN - 0021-8979

VL - 103

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 7

M1 - 07C704

ER -

Dimensional crossover and flux pinning of decoupled Cu₅₀Ni ₅₀/Nb multilayers

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