An e.p.r. study of vacancy-impurity association in MgO
- 1 January 1971
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 4 (1) , 107-116
- https://doi.org/10.1088/0022-3719/4/1/014
Abstract
Paramagnetic resonance measurements have been made at X and Q bands on an axially symmetric spectrum of Fe3+ in MgO. The tetragonal symmetry around the Fe3+ ions arises from the presence of next nearest neighbour vacancies along a (100) axis. The orientation dependence of twelve transitions at X and Q band frequencies is found to be consistent with a spin Hamiltonian of the form, H=g// beta BzSz+g perpendicular to beta (BxSx+BySy)+D3/O02+a-120/(O04+5O44) with D=+0.470 cm-1, a=0.00262 cm-1, g//=2.0026 and g perpendicular to =2.0037.Keywords
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