| Numéro |
J. Phys. II France
Volume 2, Numéro 3, March 1992
|
|
|---|---|---|
| Page(s) | 279 - 284 | |
| DOI | https://doi.org/10.1051/jp2:1992132 | |
DOI: 10.1051/jp2:1992132
J. Phys. II France 2 (1992) 279-284
1 Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, U.S.A.
2 Hawaii Institute of Geophysics, University of Hawaii, Honolulu, Hawaii 96822, U.S.A.
3 Iwan-N.-Stranski-Institut, Technische Universität Berlin, Sekr. ER 11, Str. des 17. Juni 135, 1000 Berlin 12, Germany
61.30 - 77.60 - 78.20J
© Les Editions de Physique 1992
J. Phys. II France 2 (1992) 279-284
Electrostriction dynamics of blue phase II crystallites
H.-S. Kitzerow1, P.P. Crooker1, J. Rand1, J. Xu2 and G. Heppke31 Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, U.S.A.
2 Hawaii Institute of Geophysics, University of Hawaii, Honolulu, Hawaii 96822, U.S.A.
3 Iwan-N.-Stranski-Institut, Technische Universität Berlin, Sekr. ER 11, Str. des 17. Juni 135, 1000 Berlin 12, Germany
(Received 11 October 1991, accepted 20 December 1991)
Abstract
The dynamics of electrostriction occurring in the cubic blue phase BPII is investigated. We find that the lattice constants
relax exponentially and that the time constants are independent of the electric field strength. Near the BPI-BPII transition
temperature, the time constants increase with increasing sample thickness. For higher temperatures, the time constants depend
strongly on temperature as a result of the temperature-dependent crystallite dimensions. These results are discussed with
respect to recent theories.
61.30 - 77.60 - 78.20J
© Les Editions de Physique 1992