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    题名: Current enhanced magnetic proximity in Nd0.7Ca0.3MnO3/YBa2Cu3O7 bilayer
    作者: Hsu, Daniel;Lin, J. G.;Chang, C. P.;Chen, C. H.;Wu, W. F.;Chiang, C. H.;Chan, W. C.
    贡献者: 淡江大學物理學系
    关键词: neodymium compounds;calcium compounds;yttrium compounds;barium compounds;high-temperature superconductors;pulsed laser deposition;proximity effect (superconductivity);superconducting transition temperature;electron spin polarisation;quasiparticles;exchange interactions (electron);melting;charge-ordered states
    日期: 2007-04
    上传时间: 2013-05-31 11:31:21 (UTC+8)
    出版者: College Park: American Institute of Physics
    摘要: The Nd0.7Ca0.3MnO3/YBa2Cu3O7 (NCMO/YBCO) bilayer is fabricated with the method of pulsed laser deposition, and the current dependent proximity effects are investigated. Our experimental data show that the suppression rate of superconducting transition temperature (Tc) with respect to the applied current (>1 mA) is enhanced by one order of magnitude in NCMO/YBCO compared with that in pure YBCO. The enhanced Tc suppression is attributed to pair breaking via the interactions with the spin-polarized quasiparticles and the magnetic exchange, in association with a current-induced melting of the charge-order state in NCMO.
    關聯: Applied Physics Letters 90(16), 162504(3pages)
    DOI: 10.1063/1.2722673
    显示于类别:[物理學系暨研究所] 期刊論文


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