Journal ArticleDOI
Damage studies on the system\(^{111} \mathop {In}\limits^ \to \underline {Ni}\)
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TLDR
In this paper, a microscopic model for defect-associated sites was presented, which took into account magnetic and electric hyperfine interaction strengths, binding energies and site populations as a function of temperature.Abstract:
Lattice damage after implantation of111In in Ni has been studied applying the DPAC technique to the 171–245 keV γ-ray cascade in the daughter nucleus111Cd. Implantations were carried out at 10 K and at 300 K. The low temperature implantation yields a higher regular substitutional fraction (80%) than the room temperature implantation (40%). The annealing behaviour of both implants above RT is the same. In addition, two distinct defect-associated sites were observed in isochronal annealing sequences. A microscopic model for these defects is presented, which takes into account magnetic and electric hyperfine interaction strengths, binding energies and site populations as a functions of temperature.read more
Citations
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Table of hyperfine fields for impurities in Fe, Co, Ni, Gd and Cr
TL;DR: In this article, all data available in the literature for the impurity hyperfine fields in Fe, Co, Ni and Gd matrices are collected and tabulated, and the literature search was carried out for all references listed in Physics Abstracts on papers published till the end of December 1978.
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Emission channeling and blocking
Hans Hofsäss,Gerhard Lindner +1 more
TL;DR: Emission channeling allows the lattice location of radioactive probe atoms in crystalline solids by measuring channeling effects of electrons, positrons or α particles emitted in the nuclear decay as mentioned in this paper.
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Data reduction methodology for perturbed angular correlation experiments
TL;DR: In this article, data reduction schemes for time differential perturbed angular correlation measurements are evaluated in terms of their relative effectiveness in eliminating irrelevant variables, including single counter efficiencies and spectrum time shifts; and their effectiveness in putting data in a form that can easily be fitted by theoretical correlation functions.
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Impurity-induced vacancy clustering in cold-worked nickel
TL;DR: In this article, annealing of pure nickel and dilute NiSb-alloys (0.03 and 0.1 at.%Sb) cold rolled to different thickness reductions was studied by positron lifetime, angular correlation and Doppler-broadening measurements.
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The study of lattice defects by channelling
TL;DR: In this article, the channelling of ions in crystals is described and its application to the study of a variety of lattice defects is outlined, including the trapping of vacancies and self-interstitials by solute atoms and the identification of the resulting trapping configurations.
References
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Theory of Nuclear Resonance Intensity in Dilute Alloys
Walter Kohn,S. H. Vosko +1 more
TL;DR: In this article, it was shown that at large distances from a solute atom, the electron density behaves as cos(2{k}^{0}r+\ensuremath{\phi}){r}^{3}} where k is the Fermi wave number and σ is a phase.
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