TEMPERATURE-DEPENDENCE OF THE HYPERFINE ELECTRIC-FIELD-GRADIENT TENSOR AT TA-181 IN HFO(2)

被引：32
作者：
AYALA, A
ALONSO, R
LOPEZGARCIA, A
机构：
[1] Departamento de Física, Universidad Nacional de La Plata, 1900 La Plata
来源：
PHYSICAL REVIEW B | 1994年 / 50卷 / 06期
关键词：
D O I：
10.1103/PhysRevB.50.3547
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A systematic high-resolution and high-statistics time-differential perturbed-angular-correlations study of the temperature dependence, from 77 to 1373 K, of the electric-field-gradient (EFG) tensor at Ta-181 in HfO2 is presented. Three interactions were detected. One that was observed previously corresponds to the monoclinic structure, while the other two interactions have a reversible behavior with temperature and probably belong to equilibrium defect structures. The three components of the EFG tensor V(xx), V(yy), and V(zz) corresponding to the monoclinic structure have different temperature behavior and are analyzed in terms of known models.
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页码：3547 / 3552
页数：6
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