Premium
ESR study of the paramagnetic 10 3 2− centre in an α‐LiIO 3 crystal
Author(s) -
Martirosyan V. O.,
Meilman M. L.,
Marov I. N.,
Shukov V. V.
Publication year - 1975
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.2220680241
Subject(s) - multiplet , electron paramagnetic resonance , ion , impurity , paramagnetism , chemistry , crystal (programming language) , polar , crystallography , atomic physics , spectral line , physics , condensed matter physics , nuclear magnetic resonance , organic chemistry , astronomy , computer science , programming language
In crystals of a polar phase of α‐LiIO 3 an ESR spectrum at a frequency of v = 34.633 GH z and T = 290 °K is observed. The spectrum consists of two sextets. Each line of the sextet splits into a doublet and a multiplet. The spectrum is attributed to two centres of IO 3− 2with an equivalent structure. It is shown that a 27‐electron centre, IO 3− 2 , is formed from 10 3− 2ions under γ‐irradiation. The charge compensation is based on the oxidation of Fe 2+ present in crystals as an impurity. Experimental values of g ‐tensor, hf splitting and shf splitting are determined. The values of spin‐Hamiltonian parameters and the mechanism of the centre formation and its location in the crystal are discussed.