Low-temperature dynamics of incommensurate biphenyl as probed by spectral hole burning

Authors
Suisalu, A Zazubovich, V Kikas, J Friebel, J Friedrich, J
Citation
A. Suisalu et al., Low-temperature dynamics of incommensurate biphenyl as probed by spectral hole burning, EUROPH LETT, 44(5), 1998, pp. 613-619
Citations number
29
Categorie Soggetti
Physics
Journal title
EUROPHYSICS LETTERS
ISSN journal
02955075 → ACNP
Volume
44
Issue
5
Year of publication
1998
Pages
613 - 619
Database
ISI
SICI code
0295-5075(199812)44:5<613:LDOIBA>2.0.ZU;2-A
Abstract
We have measured the temperature dependence of the homogeneous width of spe ctral holes in the incommensurate phase III of chlorin-doped biphenyl from 60 mK to 10 K. Below 2 K a power law (similar to T-alpha, alpha = 1.36, 1.7 4 for different spectral peaks) prevails. Above 2 K a strong coupling to lo w-energy (5 and 9 cm(-1)) vibrational modes dominates. No indication of a l ow-temperature lock-in transition was found.