ESR study of vanadyl ion in tripotassium citrate |
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| Affiliation: | 1. Key laboratory of State Forestry Administration on Soil and Water Conservation, School of Soil and Water Conservation, Forestry University, Beijing 100083, China;2. China Institute of Water Resources and Hydro-power Research, Beijing 100048, China |
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| Abstract: | ESR spectra of VO2+ doped tripotassium citrate are recorded at room temperature. The observed spectra are fitted to a spin Hamiltonian of orthorhombic symmetry with gx = 2.001 ± 0.001, gy = 1.997 ± 0.001, gz = 1.945 ± 0.001, Ax = (49.0 ± 1) × 10−4 cm−1, Ay = (66.8 ± 1) × 10−4 cm−1 and Az = (168.4 ± 1) × 10−4 cm−1. The covalency and Fermi contact terms are evaluated and compared with those of other lattices. |
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