ELECTRON-PARAMAGNETIC-RESONANCE STUDY OF VO2-CRYSTALS CA(HCOO)(2)-SR(HCOO)(2)( IN TETRAGONAL MIXED)

Authors
KALKAN H KOKSAL F
Citation
H. Kalkan et F. Koksal, ELECTRON-PARAMAGNETIC-RESONANCE STUDY OF VO2-CRYSTALS CA(HCOO)(2)-SR(HCOO)(2)( IN TETRAGONAL MIXED), Physica status solidi. b, Basic research, 205(2), 1998, pp. 651-656
Citations number
17
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica status solidi. b, Basic research → ACNP
ISSN journal
03701972
Volume
205
Issue
2
Year of publication
1998
Pages
651 - 656
Database
ISI
SICI code
0370-1972(1998)205:2<651:ESOVC>2.0.ZU;2-I
Abstract
A detailed study of VO2+ in tetragonal mixed crystals Ca(HCOO)(2)-Sr(H COO)(2) has been carried out at room temperature. Impurity sites in th e unit, cell and the molecular structure of the vanadyl complexes in t he crystal are discussed. The spin-Hamiltonian parameters have been ca lculated from single crystal as well as the powder spectra. The g and A tensors are found to be axially symmetric. Correlating the optical a nd EPR data the molecular orbital coefficients and crystal-field param eters are calculated and discussed.