Superconductivity in Y-doped (Tl1-xYx)Ba2Ca2Cu3O10-δ

被引：1
|
作者：
Mumtaz, M. [1 ]
Khan, Nawazish A. [2 ]
Abbas, Saleem [2 ]
机构：
[1] IIU, Dept Phys FBAS, Mat Res Lab, Islamabad 44000, Pakistan
[2] Quaid I Azam Univ, Dept Phys, Mat Sci Lab, Islamabad 45320, Pakistan
来源：
SCRIPTA MATERIALIA | 2013年 / 69卷 / 07期
关键词：
(Tl1-xYx)Ba2Ca2Cu3O10-delta superconductor; Doping; Charge reservoir layer; Antiferromagnetism; INFRARED-ACTIVE MODES; THIN-FILMS; CUPRATE SUPERCONDUCTORS; SUSCEPTIBILITY MEASUREMENTS; AC SUSCEPTIBILITY; LATTICE-DYNAMICS; Y=0; ZN; NI; TC;
D O I：
10.1016/j.scriptamat.2013.06.012
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Superconducting Y-doped (Tl1-xYx)Ba2Ca2Cu3O10-delta samples are synthesized by a solid-state reaction method and characterized by X-ray diffraction, DC resistivity (rho), AC susceptibility (chi(ac)) and Fourier transform infrared absorption spectroscopy. The suppression of zero resistivity critical temperature (T-c (R = 0)) and the magnitude of diamagnetism is most likely due to the reduced efficiency with which (Tl1-xYx)Ba2O4-delta charge reservoir layer supplies the carriers to the CuO2 planes. The localization at Y3+ reduces the number of carriers in the CuO2 planes and thereby promotes antiferromagnetism, which is fatal for superconductivity. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：517 / 520
页数：4
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