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Electron and nuclear spin dynamics in plastically deformed silicon crystals enriched in isotope 29Si

Paramagnetic defects of a new type with a concentration of about 10 15 cm −3 are shown to be generated during the plastic deformation of isotope-rich (72%, 76% 29 Si) silicon crystals at a temperature of 950°C. The electron paramagnetic resonance (EPR) spectra of these defects are anisotropic and ha...

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Published in:Journal of experimental and theoretical physics 2014-04, Vol.118 (4), p.621-629
Main Authors: Koplak, O. V., Dmitriev, A. I., Vasil’ev, S. G., Shteinman, E. A., Morgunov, R. B.
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description Paramagnetic defects of a new type with a concentration of about 10 15 cm −3 are shown to be generated during the plastic deformation of isotope-rich (72%, 76% 29 Si) silicon crystals at a temperature of 950°C. The electron paramagnetic resonance (EPR) spectra of these defects are anisotropic and have a significant width (up to 1 kOe). The nonuniform broadening of the EPR lines is caused by the variation of the internal magnetic field in correlated defect clusters. The nuclear magnetic resonance (NMR) spectra of the deformed crystals consist of Pake doublets split by nuclear spin-spin interaction. The broadening of the NMR spectra is caused by nuclear dipole-dipole relaxation.
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subjects Classical and Quantum Gravitation
Disorder
Elementary Particles
Order
Particle and Nuclear Physics
Phase Transition in Condensed System
Physics
Physics and Astronomy
Quantum Field Theory
Relativity Theory
Solid State Physics
title Electron and nuclear spin dynamics in plastically deformed silicon crystals enriched in isotope 29Si
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