Abstract
Electron paramagnetic resonance (EPR) study of Mn2+ ions doped in sarcosinium oxalate monohydrate (SOM) single crystal is done at liquid nitrogen temperature (LNT). EPR spectrum shows a bunch of five fine structure lines and further they split into six hyperfine components. Only one interstitial site was observed. With the help of EPR spectra the spin Hamiltonian parameters including zero field splitting (ZFS) parameters are evaluated. The optical absorption study at room temperature is also done in the wavelength range 195–1100nm. From this study cubic crystal field splitting parameter, Dq=730cm−1 and Racah inter-electronic repulsion parameters B=792cm−1, C=2278cm−1 are determined. ZFS parameters D and E are also calculated using crystal field parameters from superposition model and microscopic spin Hamiltonian theory. The calculated ZFS parameter values are in good match with the experimental values obtained by EPR.
Published Version
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