EPR of Mn2+ in hydrated double sulphates

Jain, V. K. ; Venkateswarlu, P. (1979) EPR of Mn2+ in hydrated double sulphates Journal of Physics C: Solid State Physics, 12 (5). pp. 865-873. ISSN 0022-3719

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Official URL: http://iopscience.iop.org/0022-3719/12/5/015

Related URL: http://dx.doi.org/10.1088/0022-3719/12/5/015


The electron paramagnetic resonance of Mn2+ in single crystals of CoM2'(SO4)2.6H2O(M'=Rb, Cs, Tl), M"Tl2(SO4)2.6H2O(M"=Mg, Zn), ZnNa2(SO4)2.4H2O and CdNa2(SO4)2.2H2O has been studied in X-band at room temperature (300K). Two magnetically inequivalent, but otherwise identical, complexes of Mn2+ have been found in all the systems. The complexes are related to each other by two-fold symmetry about the b axis. The resonance line positions are fitted to the spin-Hamiltonian of orthorhombic symmetry. The hyperfine splittings of Mn2+, surrounded by an octahedron of water molecules and by an octahedron of oxygens, were used to calculate the covalency in crystals containing Mn2+ surrounded both by water and by oxygen molecules.

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