Electric field gradient in bixbyite rare-earth oxides R2O3 (R = Tl, Eu, Lu, Tm) measured by perturbed angular correlation

被引：6

作者：

Carbonari, AW

Mestnik, J

Attili, RN

Moralles, M

Saxena, RN

机构：

[1] IPEN, BR-05422970 Sao Paulo, Brazil

[2] Univ Grande ABC, UniABC, Sao Caetano do Sul, SP, Brazil

来源：

HYPERFINE INTERACTIONS | 1999年 / 120卷 / 1-8期

关键词：

D O I：

10.1023/A:1017009809253

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The electric field gradient (EFG) at Cd-111 nuclei dilutely substituting the cation site in bixbyite rare-earth oxides Tl2O3, Eu2O3, Lu2O3 and Tm2O3 has been measured using perturbed angular correlation technique. The In-111(EC) Cd-111 probe nuclei were introduced into the samples by thermal diffusion. The experimental EFG values are compared with those calculated using the point charge model (PCM). The results are discussed in terms of a correlation between the electric field gradient and cation-oxygen bond length in metal oxides.

引用

页码：475 / 478

页数：4

共 5 条

[1] Electric-field gradients at Cd-111 in delafossite oxides ABO(2) (A=Ag, Cu; B=Al, Cr, Fe, In, Nd, Y) [J].