ELECTRON-PARAMAGNETIC-RESONANCE INVESTIGATIONS OF CR3-II AND PHASE-III OF KGAF4( AND FE3+ IN PHASE)

Authors
FOUEJIO D ROUSSEAU JJ
Citation
D. Fouejio et Jj. Rousseau, ELECTRON-PARAMAGNETIC-RESONANCE INVESTIGATIONS OF CR3-II AND PHASE-III OF KGAF4( AND FE3+ IN PHASE), Journal of physics. Condensed matter, 8(15), 1996, pp. 2663-2672
Citations number
9
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
8
Issue
15
Year of publication
1996
Pages
2663 - 2672
Database
ISI
SICI code
0953-8984(1996)8:15<2663:EIOCAP>2.0.ZU;2-1
Abstract
E.P.R. studies of the Cr3+ (S = 3/2) and Fe3+ (S = 5/2) ions in the hi gh- (II) and low- (III) temperature phases of KGaF4 are reported. The structural phase transition close to 202 degrees C has been demonstrat ed, using the temperature dependence of the spin-Hamiltonian parameter s. The main mechanism of the phase transition is driven by the rotatio n of the GaF6 octahedra around the c-axis.