OXYGEN ORDERING AND SUPERCONDUCTING TEMPERATURE OF YBA2CU3O6+X

被引：19

作者：

LAPINSKAS, S

ROSENGREN, A

TORNAU, EE

机构：

[1] Department of Theoretical Physics, Royal Institute of Technology

来源：

PHYSICA C | 1992年 / 199卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90544-M

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An analysis of the relation between the superconducting temperature T(c) and the oxygen ordering in the basal CuOx plane of the high-temperature superconductor YBa2Cu3O6+x is presented. Superconductivity in the CuO2 planes of a non-stoichiometric compound is assumed to appear locally, just in the neighbourhood of the regions with O-Cu-O chains. Bulk superconductivity occurs when these regions form a percolation network characterized by the minimal width d of a percolation path with T(c) depending on d. The evaluation of d by the cluster field method allows one to obtain quantitative agreement of the calculated and experimental T(c)(x) dependences.

引用

页码：91 / 94

页数：4

共 14 条

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