Abstract

EPR of Mn2+ doped in Co(HC4H2O4)2 · 4H2O single crystals has been studied at room temperature and at liquid nitrogen temperature using X-band frequencies. The spin-Hamiltonian parameters were caculated. Mn2+ has been found to substitute for Co2+. Observation of resolved Mn2+ spectrum and broadening of the resonance lines on decreasing the temperature have been explained on the basis of host spin-lattice relaxation narrowing. The T1 of Co2+ has been estimated to be ≈8.3 x 10-12S at 300K.

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