Abstract

AbstractThe absorption spectra of single crystals of VI2 in the region6000 to 26000 cm−1 are reported. The spectra show a large number of narrow absorption lines which disappear above the magnetic orderingtemperature TN = 15 K. The absorption bands are assigned to electronic transitions of the d electrons of vanadium. From the spectra the ligand field splitting 10Dq = 7870 cm−1 and the Racah parameters B = 540 cm−1 and C = 2322 cm−1 are calculated. The results are compared with data for VC12 and VBr2.

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