Mukhopadhyay, Anup Kumar ; Chowdhury, Mihir (1977) Spectra of centrosymmetric rare-earth complexes: Nd3+-hexakis-antipyrine tri-iodide single crystals Physical Review B, 16 (7). pp. 3070-3080. ISSN 0163-1829
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Official URL: http://prb.aps.org/abstract/PRB/v16/i7/p3070_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.16.3070
Polarized absorption spectra of centrosymmetric neodymium hexakis-antipyrine tri-iodide single crystals at 77 and 20° K have been discussed. The spectrum is complicated by the appearance of a large number of vibronic lines. A phase transition destroying the inversion symmetry occurs between 77 and 20°K and this was used as a tool to locate the 0-0 lines. Some of the 0-0 lines have been shown to be magnetic dipole allowed. The calculated crystal-field parameters (Stevens) are B20=200 cm-1; B40=-130 cm-1; B60=60 cm-1; B43=3250 cm-1; B63=1000 cm-1; B66=400 cm-1.
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|Last Modified:||04 Feb 2011 09:46|
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