PRESSURE-DEPENDENCE OF THE HYPERFINE FIELD OF A CD PROBE IN A RELAXED TRIVACANCY COMPLEX IN NI

被引：3

作者：

CHOW, L ^{[1
]}

ZHAO, X ^{[1
]}

COLLINS, GS ^{[1
]}

机构：

[1] WASHINGTON STATE UNIV,DEPT PHYS,PULLMAN,WA 99164

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.45.4672

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Perturbed gamma-gamma-angular-correlation experiments were carried out using extremely dilute Cd-111 probes to measure the pressure dependence of the magnetic hyperfine field at a vacancy-solute complex in Ni in which the Cd probe is relaxed to the center of a tetrahedron of vacancies. The pressure dependence of the hyperfine field of the defect-free substitutional site was found to be dH(hf)/dp = -0.038(6) kG/kbar, which agrees with a previous measurement. The pressure dependence of the hyperfine field associated with the vacancy complex was found to be dH(hf)/dp = -0.023(4) kG/kbar. Results are not found to be consistent with a simple picture of the hyperfine-field-production mechanism obtained from recent first-principles calculations.

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页码：4672 / 4675

页数：4

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