Modeling of SuperconductivityNo Access

PROPERTIES OF Y_1-XSR_XBA_2-XLA_XCU₃O_Y CARRIER COMPENSATION SYSTEM

Materials Physics Laboratory, State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, China

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X. F. SUN

Materials Physics Laboratory, State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, China

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Y. Y. XU

Materials Physics Laboratory, State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, China

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, and

H. ZHANG

Materials Physics Laboratory, State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, China

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https://doi.org/10.1142/S0217979207044081Cited by:0 (Source: Crossref)

Abstract

The samples of Y_1-xSr_xBa_2-xLa_xCu₃O_y (YSBLCO) were synthesized and characterized by DC magnetization measurements and X-ray diffraction. The structures of the samples were refined by Rietveld method. Although the carrier concentration in the samples is constant at different dopant levels, the superconductivity evidently changes. We attribute decrease in Tc to a charge redistribution in the crystalline lattice. Comparing the change of the T_c value caused by structural influence and carrier concentration, it is suggested that the influence of structural changes on the superconductivity is independent of that induced by carrier concentration.