Different path of pressure-induced oxygen ordering and disordering processes in YBa2Cu3O6+x near a metal-insulator transition

被引：5

作者：

Fita, IM ^{[1
]}

D'yakonov, VP

Puzniak, R

Szymczak, H

机构：

[1] Ukrainian Acad Sci, Donetsk Physicotech Inst, UA-340114 Donetsk, Ukraine

[2] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

来源：

PHYSICS OF THE SOLID STATE | 1998年 / 40卷 / 11期

关键词：

D O I：

10.1134/1.1130656

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The relaxation of the superconducting transition temperature T-c in YBa2Cu3O6.38 is investigated with increasing oxygen order in the CuOx plane under 1 GPa pressure and with decreasing oxygen order after the pressure is relieved. It is established that the oxygen disordering process is more rapid than the pressure-induced ordering process: The ratio of the relaxation times of T-c in these processes tau(ord)/t(disord)approximate to 5. This behavior could be caused by different mechanisms of the pressure-induced increase in the Cu-O chain length and decrease of this length after pressure relief. (C) 1998 American Institute of Physics. [S1063-7834(98)00211-1].

引用

页码：1783 / 1787

页数：5

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