EPR of Cu2+ in Barium Formate Single Crystal
- 1 September 1985
- journal article
- research article
- Published by Wiley in Physica Status Solidi (b)
- Vol. 131 (1) , 357-367
- https://doi.org/10.1002/pssb.2221310137
Abstract
Results of an X‐band (≈ 9.3 GHz) EPR study of Cu2+ doped barium formate single crystal at RT and at LNT show that Cu2+ enters the host lattice at substitutional Ba2+ sites as well as at an interstitial site. Both the copper (II) complexes show a low symmetry and low site symmetry effects are evident in EPR at RT. The g and A tensors are non‐coaxial at RT for both the copper complexes, however, they become coaxial at LNT. From experimental EPR data the ground state orbitals are obtained and discussed. The ground states are found to be mainly d with some admixture of d. From the observed g‐value the energy splitting of the d‐orbitals of the metal ion are also obtained. The angular behaviour of EPR spectra is in conformity with the symmetry class of the host crystal as determined by X‐rays.Keywords
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