Superconductivity in Sn nanocomposites

Y. S. Ciou; M. K. Lee; E. V. Charnaya; C. Tien; L. J. Chang; Yu A. Kumzerov; M. I. Samoylovich

doi:10.1088/0953-2048/26/5/055009

Superconductivity in Sn nanocomposites

Y. S. Ciou, M. K. Lee, E. V. Charnaya, C. Tien, L. J. Chang, Yu A. Kumzerov, M. I. Samoylovich

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

11 Citations (Scopus)

Abstract

An ac magnetization technique was used to study superconductivity in tin loaded nanoporous silica matrices, opal matrix and two porous glasses. The behavior of type-II superconductors with a sharp transition at zero bias field was observed. Regular increase in the superconducting temperature up to 4.2 K and in a critical field up to H_c2(0) ≅ 54 kOe with decreasing pore size was found. A crossover from the upturn to the common downturn curvature in the H_c2(T) line was seen for all nanocomposites; the upturn curvature was more pronounced for the matrix with the finest pores.

Original language	English
Article number	055009
Journal	Superconductor Science and Technology
Volume	26
Issue number	5
DOIs	https://doi.org/10.1088/0953-2048/26/5/055009
Publication status	Published - 2013 May

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1088/0953-2048/26/5/055009

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abstract = "An ac magnetization technique was used to study superconductivity in tin loaded nanoporous silica matrices, opal matrix and two porous glasses. The behavior of type-II superconductors with a sharp transition at zero bias field was observed. Regular increase in the superconducting temperature up to 4.2 K and in a critical field up to Hc2(0) ≅ 54 kOe with decreasing pore size was found. A crossover from the upturn to the common downturn curvature in the Hc2(T) line was seen for all nanocomposites; the upturn curvature was more pronounced for the matrix with the finest pores.",

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AU - Ciou, Y. S.

AU - Lee, M. K.

AU - Charnaya, E. V.

AU - Tien, C.

AU - Chang, L. J.

AU - Kumzerov, Yu A.

AU - Samoylovich, M. I.

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N2 - An ac magnetization technique was used to study superconductivity in tin loaded nanoporous silica matrices, opal matrix and two porous glasses. The behavior of type-II superconductors with a sharp transition at zero bias field was observed. Regular increase in the superconducting temperature up to 4.2 K and in a critical field up to Hc2(0) ≅ 54 kOe with decreasing pore size was found. A crossover from the upturn to the common downturn curvature in the Hc2(T) line was seen for all nanocomposites; the upturn curvature was more pronounced for the matrix with the finest pores.

AB - An ac magnetization technique was used to study superconductivity in tin loaded nanoporous silica matrices, opal matrix and two porous glasses. The behavior of type-II superconductors with a sharp transition at zero bias field was observed. Regular increase in the superconducting temperature up to 4.2 K and in a critical field up to Hc2(0) ≅ 54 kOe with decreasing pore size was found. A crossover from the upturn to the common downturn curvature in the Hc2(T) line was seen for all nanocomposites; the upturn curvature was more pronounced for the matrix with the finest pores.

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Superconductivity in Sn nanocomposites

Abstract

All Science Journal Classification (ASJC) codes

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