Graduate Thesis Or Dissertation

 

New Phases and Phenomena of the Ferroelectric Nematic Realm Public Deposited

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https://scholar.colorado.edu/concern/graduate_thesis_or_dissertations/jw827d03z
Abstract
  • In 1916, Max Born envisioned a ferroelectric fluid in which all the dipoles point in the same direction. One century later, the ferroelectric nematic (NF) liquid crystal phase was finally found. I will present the first-principles evidence for this ferroelectric nematic phase including polarization measurements which showed that the polar ordering in the NF liquid was nearly perfect, the largest ever observed in a fluid, and comparable to that of solid-state ferroelectrics. In the work that followed, three other new phases were discovered, the chiral NF with helical polar order, and two phases with fluid layers, the antiferroelectric SmZA , and the ferroelectric SmAF with comparable polarization. The unique domain structures, defects, x-ray scattering, and electro-optic response of these phases of the ferroelectric nematic realm will be discussed.

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  • 2022-07-26
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  • 2022-09-17
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