High-temperature spin dynamics studied by solid-state nuclear resonance and electron paramagnetic resonance in 29Si:B crystals

The relaxation of nuclear magnetization in the ²⁹Si:B crystals obeys power-law kinetics at 300 K due to direct electron–nuclear relaxation. Admixture of the exponential relaxation associated with spin diffusion was revealed at higher temperatures. The inhomogeneous distribution of linear deformation...

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Bibliographic Details
Published in:Journal of materials science 2016-02, Vol.51 (4), p.1838-1844
Main Authors: Morgunov, R. B, Koplak, O. V
Format: Article
Language:English
Subjects:
Admixtures
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Crystal defects
Crystallography and Scattering Methods
crystals
Deformation
Electron paramagnetic resonance
electron paramagnetic resonance spectroscopy
Electrons
High temperature
Materials Science
Nuclear relaxation
Nuclear spin
Original Paper
Polymer Sciences
Power law
Solid Mechanics
Spin dynamics
temperature
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Summary:The relaxation of nuclear magnetization in the ²⁹Si:B crystals obeys power-law kinetics at 300 K due to direct electron–nuclear relaxation. Admixture of the exponential relaxation associated with spin diffusion was revealed at higher temperatures. The inhomogeneous distribution of linear deformation defects was revealed by electron paramagnetic resonance. This factor mainly contributes to power-law kinetics of nuclear spin relaxation.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-015-9490-2