Molecular probing of low-temperature incommensurate phases
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Molecular probing of low-temperature incommensurate phases
|
|
| Creator |
Kikas, J.
Suisalu, A. Laisaar, A. Kuznetsov, An. |
|
| Subject |
Biological Systems at Low Temperatures
|
|
| Description |
Two-dimensional (2D) excitation-emission spectra of biphenyl doped with free-base chlorin were measured at 5 K under various pressures up to 350 MPa. Besides the features related to zero-phonon lines and their phonon sidebands, a broad spectral band amounting to 80% of the total intensity at 5 K was revealed in the 2D spectra. The obtained inhomogeneous distribution function shows drastic changes with increasing pressure — the triplet structure observable at normal pressure in the incommensurate phase ICIII of biphenyl converges to a singlet in the high-pressure commensurate phase CI. These observations are assumed to reflect specific for incommensurate phases relaxation after an optical excitation of probe molecules and interaction of them with the incommensurate modulation wave.
|
|
| Date |
2018-01-14T13:00:22Z
2018-01-14T13:00:22Z 2003 |
|
| Type |
Article
|
|
| Identifier |
Molecular probing of low-temperature incommensurate phases / J. Kikas, A. Suisalu, A. Laisaar, An. Kuznetsov // Физика низких температур. — 2003. — Т. 29, № 9-10. — С. 1057-1060. — Бібліогр.: 13 назв. — англ.
0132-6414 PACS: 61.44.Fw, 62.50.+p, 64.70.Rh, 78.55.Kz http://dspace.nbuv.gov.ua/handle/123456789/128922 |
|
| Language |
en
|
|
| Relation |
Физика низких температур
|
|
| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
|
|