Microstrains in Lal.85Sro.15Cul-yMyO4 (M=Zn,Ni,Mg) cuprates with Y≤0.30，成果详细信息-中国科技论文在线

吴小山

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Microstrains in Lal.85Sro.15Cul-yMyO4 (M=Zn,Ni,Mg) cuprates with Y≤0.30

吴小山， X. S. Wu a ， * ， S. S. Jiang a ， W. M. Chen a Z. S.Lin a ， X. Jin a ， Z. Q.Mao b ， G. J. Xu b ， Y. H. Zhang b

Physica C 294(1998)122-128，-0001，（）：

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摘要/描述

Lai. 85Sro. 15Cul-yMy04 ceramic cuprates with M-Zn, Ni, Mg, and). ≤0.30 have been synthesized. The superconduct-ing critical temperatures and the room temperature resistivities for M doping have been determined by a standard four-probemethod. The width of each reflection of X-ray diffraction for each sample is analyzed by Rietveld refinements which is related to the average grain size and the average lattice microstrain. In this way we attempt to explain the stronger suppression for non-magnetic doping such aS Zn or Mg than that for magnetic doping such as Ni.

关键词: La1 ， 85Sr0 ， 15Cul-yMy(M=Zn,Ni,Mg)cuprates; Room temperature resistivity; X-ray diffraction; Broadening of reflection; Average lattice microstrain

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