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Perturbed Angular Correlation Measurements of Vacancy Trapping at Indium Atoms in Quenched Aluminum

Published online by Cambridge University Press:  25 February 2011

M. L. Swanson ,
T. H. Wichert ,
L. M. Howe ,
A. F. Quenneville  and
O. M. Westcott
M. L. Swanson
Affiliation:
Chalk River Nuclear Laboratories, AECL, Chalk River, Ont., KOJ IJO
T. H. Wichert
Affiliation:
Chalk River Nuclear Laboratories, AECL, Chalk River, Ont., KOJ IJO
L. M. Howe
Affiliation:
Chalk River Nuclear Laboratories, AECL, Chalk River, Ont., KOJ IJO
A. F. Quenneville
Affiliation:
Chalk River Nuclear Laboratories, AECL, Chalk River, Ont., KOJ IJO
O. M. Westcott
Affiliation:
Chalk River Nuclear Laboratories, AECL, Chalk River, Ont., KOJ IJO
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Abstract

The perturbed angular correlation (PAC) method was used to study vacancy trapping at 111In atoms in quenched Al single crystals containing up to 10 ppm In. During annealing from 200–230 K, two different electric field gradients appeared, characterized by the interaction frequencies ν 01 = 67 MHz with asymmetry parameter η = 0.41, and νQ2 = 133 MHz with η = 0. The assignment of ν01 to a single vacancy-In atom pair is discussed. The results indicate that the migration energy of single vacancies in Al is = 0.55 eV.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 41: Symposium K – Advanced Photon and Particle Techniques for the Characterization of Defects in Solids , 1984 , 35
Copyright
Copyright © Materials Research Society 1985

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