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

Article

关键词: TEMPERATURE-DEPENDENCE;    ELECTRONIC-STRUCTURE;    IMPURITIES;    SYSTEMATICS;    METALS;    SHIFT;   

DOI  :  10.1103/PhysRevB.45.4672

来源: SCIE

【 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.

【 授权许可】

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