Electron paramagnetic resonance and relaxation study of copper (II) and silver (II) in CsCdF3 single crystals
|Published in||Journal of Chemical Physics. 1993, vol. 99, no. 9, p. 6378-6383|
|Abstract||Copper and silver, respectively, were introduced into single crystals of CsCdF3. Our detailed electron paramagnetic resonance (EPR) study showed that both elements enter the Cd lattice site—copper as Cu2+, silver as Ag+, which then was converted into Ag2+ by x raying the corresponding samples. Cu2+ and Ag2+ were shown to present in their ground state a pseudostatic Jahn–Teller effect. Motional effects were observed in the respective EPR spectra and studied in some detail for Cu2+ as they are seen over a wide temperature range. Predictions of a stochastic Kubo model [J. Phys. Soc. Jpn. 9, 935 (1954)] were compared with the temperature dependent linewidths of the motionally averaged EPR spectrum. A power law (Tn with n1.9) was determined for the temperature dependence of the reorientation frequency between 30 and 90 K.|
|Keywords||Electron spin resonance — Relaxation — Cesium fluorides — Cadmium fluorides, — Monocrystals — Copper ions, — Silver ions — Cations — Reorientation — Temperature dependence — Temperature range 0013-0065 k — Temperature range 0065-0273 k — Ternary compounds — Spin-lattice relaxation|
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|Research group||Groupe Bill|
|MINNER, Edith Marie Claudine, LOVY, Dominique, BILL, Hans. Electron paramagnetic resonance and relaxation study of copper (II) and silver (II) in CsCdF3 single crystals. In: Journal of Chemical Physics, 1993, vol. 99, n° 9, p. 6378-6383. https://archive-ouverte.unige.ch/unige:2904|