National Changhua University of Education Institutional Repository : Item 987654321/15785

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NCUEIR > College of Science > Department of Physics > Periodical Articles > Item 987654321/15785

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/15785

Title:	Evidence for Suppression of Superconductivity by Spin Imbalance in Co-Al-Co Single-Electron Transistors
Authors:	Chen, C. D.;Kuo, Watson;Chung, D. S.;Shyu, J. H.;Wu, Cen-Shawn
Contributors:	物理學系
Date:	2002-01
Issue Date:	2013-03-12T04:06:03Z
Publisher:	The American Physical Society
Abstract:	Spin imbalance can lead to suppression of superconductivity. We report the phenomena manifesting this effect under spin-polarized quasiparticle currents in ferromagnet-superconductor-ferromagnet single-electron transistors. The measured superconducting gap as a function of magnetic field reveals a dramatic decrease when the magnetizations of the two leads are misaligned. The effect of suppression increases with increasing source-drain voltage. A comparison with theoretical calculations is presented. This method may render it applicable to control superconductivity at low temperatures within low fields.
Relation:	Physical Review Letters, 88(4): 047004
Appears in Collections:	[Department of Physics] Periodical Articles

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