Suppression of superconductivity by interparticle interactions in Al nanoparticle assembly

Shih Bin Liu; Chia Tang Chen; Chun Ming Wu; Chin Wei Wang; Chih Jen Wang; Sunil K. Karna; Wen Hsien Li

doi:10.1063/1.3564936

Suppression of superconductivity by interparticle interactions in Al nanoparticle assembly

Shih Bin Liu, Chia Tang Chen, Chun Ming Wu, Chin Wei Wang, Chih Jen Wang, Sunil K. Karna, Wen Hsien Li

物理學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

4 引文斯高帕斯（Scopus）

摘要

We report on the observations of enhanced superconductivity in a very loosely packed 6.8 nm Al nanoparticle assembly and the suppression of superconductivity by interparticle interactions, through ac magnetic susceptibility and magnetization measurements. T_C and H_C of the 6.8 nm Al particles are, respectively, 1.9 and 77 times higher than that of bulk Al. M(H_a) curves taken below and above T_C can all be described by a Langevin profile, showing the existence of a spontaneous magnetic component in superconducting phase. Superconductivity is found to be gradually suppressed by interparticle interactions.

原文	???core.languages.en_GB???
文章編號	07E153
期刊	Journal of Applied Physics
卷	109
發行號	7
DOIs	https://doi.org/10.1063/1.3564936
出版狀態	已出版 - 1 4月 2011

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10.1063/1.3564936

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title = "Suppression of superconductivity by interparticle interactions in Al nanoparticle assembly",

abstract = "We report on the observations of enhanced superconductivity in a very loosely packed 6.8 nm Al nanoparticle assembly and the suppression of superconductivity by interparticle interactions, through ac magnetic susceptibility and magnetization measurements. TC and HC of the 6.8 nm Al particles are, respectively, 1.9 and 77 times higher than that of bulk Al. M(Ha) curves taken below and above TC can all be described by a Langevin profile, showing the existence of a spontaneous magnetic component in superconducting phase. Superconductivity is found to be gradually suppressed by interparticle interactions.",

author = "Liu, {Shih Bin} and Chen, {Chia Tang} and Wu, {Chun Ming} and Wang, {Chin Wei} and Wang, {Chih Jen} and Karna, {Sunil K.} and Li, {Wen Hsien}",

note = "Funding Information: This work is supported by the National Science Council of Taiwan, under Grant No. NSC 98-2112-M-008-016-MY3.",

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AU - Liu, Shih Bin

AU - Chen, Chia Tang

AU - Wu, Chun Ming

AU - Wang, Chin Wei

AU - Wang, Chih Jen

AU - Karna, Sunil K.

AU - Li, Wen Hsien

N1 - Funding Information: This work is supported by the National Science Council of Taiwan, under Grant No. NSC 98-2112-M-008-016-MY3.

PY - 2011/4/1

Y1 - 2011/4/1

N2 - We report on the observations of enhanced superconductivity in a very loosely packed 6.8 nm Al nanoparticle assembly and the suppression of superconductivity by interparticle interactions, through ac magnetic susceptibility and magnetization measurements. TC and HC of the 6.8 nm Al particles are, respectively, 1.9 and 77 times higher than that of bulk Al. M(Ha) curves taken below and above TC can all be described by a Langevin profile, showing the existence of a spontaneous magnetic component in superconducting phase. Superconductivity is found to be gradually suppressed by interparticle interactions.

AB - We report on the observations of enhanced superconductivity in a very loosely packed 6.8 nm Al nanoparticle assembly and the suppression of superconductivity by interparticle interactions, through ac magnetic susceptibility and magnetization measurements. TC and HC of the 6.8 nm Al particles are, respectively, 1.9 and 77 times higher than that of bulk Al. M(Ha) curves taken below and above TC can all be described by a Langevin profile, showing the existence of a spontaneous magnetic component in superconducting phase. Superconductivity is found to be gradually suppressed by interparticle interactions.

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JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

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Suppression of superconductivity by interparticle interactions in Al nanoparticle assembly

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