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    题名: X-ray spectroscopy of EuBa2(Cu1-yZny)3O7-x: Suppression of superconductivity
    作者: Horn, S.;Reilly, K.;Fisk, Z.;Kwok, R. S.;Thompson, J. D.;Borges, H. A.;Chang, C. L.;Denboer, M. L.
    贡献者: 淡江大學物理學系
    日期: 1988-08
    上传时间: 2013-07-09 15:05:32 (UTC+8)
    出版者: College Park: American Physical Society
    摘要: We have studied the x-ray-absorption near-edge spectra of EuBa2(Cu1-yZny)3O7 as a function of Zn and O content. There is clear evidence for the development of Cu1+ ions as the O content is reduced to levels sufficient to suppress superconductivity. However, there is no effect on the electronic state of the Cu ion as the Zn content is increased and superconductivity vanishes. We tentatively conclude that the suppression of superconductivity is in both cases due to the preferred occupancy of certain planes by nonmagnetic (filled d subshell) atoms, as proposed in YBa2Cu3O6 on the basis of neutron scattering.
    關聯: Physical Review B (Condensed Matter) 38(4), pp.2930-2933
    DOI: 10.1103/PhysRevB.38.2930
    显示于类别:[物理學系暨研究所] 期刊論文


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