TIME-DIFFERENTIAL PERTURBED-ANGULAR-CORRELATION AND EMISSION MOSSBAUER STUDIES ON RU-99 DISPERSED IN YBA2CU3O6.8 AND YBA2CU3O6

被引：3

作者：

OHKUBO, Y

KOBAYASHI, Y

HARASAWA, K

AMBE, S

OKADA, T

AMBE, F

ASAI, K

SHIBATA, S

机构：

[1] UNIV ELECTROCOMMUN,CHOFU,TOKYO 182,JAPAN

[2] UNIV TOKYO,INST NUCL STUDY,TANASHI,TOKYO 188,JAPAN

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1995年 / 99卷 / 26期

关键词：

D O I：

10.1021/j100026a029

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The hyperfine interactions at Ru-99(<--Rh-99) dispersed in YBa2Cu3O6.8 and YBa2Cu3O6 were studied by means of time-differential perturbed-angular-correlation (TDPAC) and emission Mossbauer spectroscopy. The TDPAC and Mossbauer measurements show that Ru ions are in the tetravalent state and exclusively occupy the Cu-1 sites, which form one-dimensional Cu-O chains in the orthorhombic phase. The oxygen coordinations around the Ru ions are discussed on the basis of the observed electric field gradients at Ru-99 in YBa2Cu3O6.8 and YBa2Cu3O6.

引用

页码：10629 / 10634

页数：6

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