Anomaly in the Dynamic Behavior of the Electroclinic Effect Below the Nematicsmectic-A Phase Transition

Authors

Zili Li, Case Western Reserve University
Robert B. Akins, Case Western Reserve University
Gregory A. DiLisi, Case Western Reserve University
Charles Rosenblatt, Case Western Reserve UniversityFollow
Rolfe G. Petschek, Case Western Reserve UniversityFollow

Document Type

Article

Publication Date

1-15-1991

Abstract

The electroclinic effect and dielectric response have been investigated in the British Drug House material SCE12 over its entire 15-K smectic-A range. Near the smectic-Asmectic-C*-phase transition both the electroclinic coefficient and dynamic response behave normally, the former diverging and the latter exhibiting a critical slowing down on approaching TA-C* from above. Similar behavior is seen in the dielectric response. Approximately 10 to 12 K above TA-C*, however, it was found that the electroclinic relaxation time levels off and even begins to increase again on approaching the nematicsmectic-A transition from below. The magnitude of the electroclinic coefficient, however, decreases monotonically on approaching the nematicsmectic-A transition.

Publication Title

Physical Review A

Rights

© 1991 The American Physical Society.

Recommended Citation

Anomaly in the Dynamic Behavior of the Electroclinic Effect Below the Nematicsmectic-A Phase Transition. Li Z., Akins R.B., Dilisi G.A., Rosenblatt C., Petschek R.G., Physical Review A 43:2, 852-857 (1991).