Electronic Resource
Springer
The European physical journal
233 (1970), S. 94-100
ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Near infrared absorption measurements by Gross and Bron led to the suggestion that the threefold degeneracy of the localized vibration ofH i − andD i − centres in KI is completely lifted in KBr. Using thermal annealing procedures,H i − -D i − substitution and far infrared techniques we found that the lines at 794, 840, and 896 cm−1 cannot be interpreted as a splitting of the main line. Only the 794 cm−1 line can be correlated with the direct excitation of theH i − oscillator. The absence of any splitting in this line (its halfwidth at 9 °K is only 1.5 cm−1) indicates that also in KBrH i − centres have at most only slightly perturbedT d symmetry.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01396521
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