Electron paramagnetic resonance of Fe3+ in orthorhombic KNbO3 |
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| Authors: | F.M. Michel-Calendini M. Peltier F. Micheron |
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| Affiliation: | Laboratoire d''Electronique et Physique du Solide, Université Claude Bernard Lyon I, 69621 Villeurbanne, France;Laboratoire Central de Recherches, Thomson CSF, Domaine de Corbeville - B.P. 10, 91401 Orsay, France |
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| Abstract: | EPR spectra of KNbO3:Fe single crystals are obtained in the - 10–110°C temperature range. The angular dependence of resonant lines is well reproduced by spin Hamiltonian parameters relevant to a Fe3+ impurity ion substituted to Nb ion in KNbO3 crystal. The temperature behaviour of resonant lines is explained by a quadratic dependence of axial parameter D vs polarization Ps of the form D = βP2s in the orthorhombic phase. |
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