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Electromultipole Interaction and Paramagnetic Relaxation in Ruby I. EPR Line Shape in Ruby
Author(s) -
Peskovatskii S. A.
Publication year - 1970
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19700400136
Subject(s) - quadrupole , line (geometry) , dipole , relaxation (psychology) , paramagnetism , crystal (programming language) , electron paramagnetic resonance , condensed matter physics , atomic physics , physics , molecular physics , nuclear magnetic resonance , quantum mechanics , psychology , social psychology , geometry , mathematics , computer science , programming language
The concentration dependence of the line shape in ruby is investigated experimentally at frequencies 9000, 11500 (crystal field splitting frequency), and 40000 MHz. Assumption of pure magnetic dipole‐dipole interaction does not explain the experimental results. The line broadening caused by quadrupole‐quadrupole interaction of spin states is calculated using a statistical theory. The calculated and experimental data are in good qualitative and quantitative agreement.