EPR IN GD-DOPED YBA2CU3O6+Y (O LESS-THAN-OR-EQUAL-TO Y LESS-THAN-OR-EQUAL-TO 1) - LOCAL METHOD TO DETERMINE OXYGEN ORDERING

被引：15

作者：

JANOSSY, A ^{[1
]}

ROCKENBAUER, A ^{[1
]}

PEKKER, S ^{[1
]}

OSZLANYI, G ^{[1
]}

FAIGEL, G ^{[1
]}

KORECZ, L ^{[1
]}

机构：

[1] CENT RES INST CHEM,H-1525 BUDAPEST,HUNGARY

来源：

PHYSICA C | 1990年 / 171卷 / 5-6期

关键词：

D O I：

10.1016/0921-4534(90)90258-G

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The Gd3+9GHz EPR spectra of a series of 10 magnetic field oriented Y0.999Gd0.001Ba2Cu3O6+y (0≤y ≤1) compounds show 7 well resolved fine structure sets corresponding to various configurations of oxygen in the Cu(1) planes. The oxygen contents are confirmed by X-ray diffraction lattice constants. The data suggest that for y≥0.3 oxygen on the O(1) sites forms alternating occupied and vacant chains. The chains themselves are at least partially ordered. The relation between oxygen order at intermediate y and the superconducting transition temperature is briefly discussed. © 1990.

引用

页码：457 / 464

页数：8

共 14 条

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