Investigating the Elastic Properties of N4 through Freedericksz Transitions

David J. Merriman and Shila Garg

Utilizing a combination of geometries and external fields, we were able to measure the splay elastic constant K1 and the diamagnetic anisotropy (χa) for the liquid crystal mixture N4. Data were collected over various temperatures for these measurements. Splay magnetic Freedericksz transitions enabled us to obtain the ratio K1a. Currently, we are in the process of collecting more data for splay electrical Freedericksz transitions, from which we will obtain the splay elastic constant K1 which will allow us to indirectly measure χa. This research was supported by NSF DMR 9987850.