Inhomogeneous electron paramagnetic resonance line broadening in ruby
- 1 August 1968
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 1 (4), 913-918
- https://doi.org/10.1088/0022-3719/1/4/311
Abstract
The angular variations of the electron paramagnetic resonance linewidths of the ΔM = 1 transitions at 35 GHz have been studied in rubies grown by the vapour phase, Verneuil and Czochralski processes and having chromium concentrations in the range 0.015 to 0.20 at.%. Using a strain and mosaic model, parameters characterizing the strain at the Cr3+ sites and the axial misorientation have been derived by a least-squares analysis. The spread in zero-field splitting is typically about 5×10-4 cm-1, giving Δ(2D)/2D similar, equals 10-3. The values of the strain components exx, ezz and exz lie in the range 10-4 to 2×10-2 and appear to be growth dependent.Keywords
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