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Series

Kent State University

1979

Articles 1 - 4 of 4

Full-Text Articles in Physics

Nmr Measurement Of Biaxial Molecular Order In The Smectic C-Phase, Demetri J. Photinos, Philip J. Bos, J. William Doane Nov 1979

Nmr Measurement Of Biaxial Molecular Order In The Smectic C-Phase, Demetri J. Photinos, Philip J. Bos, J. William Doane

Chemical Physics Publications

No abstract provided.


Investigation Of The Indexes Of Refraction Near The Smectic-A Smectic-C Transition: Orientational Order, Thomas E. Lockhart, David W. Allender, Edward Gelerinter, David L. Johnson Oct 1979

Investigation Of The Indexes Of Refraction Near The Smectic-A Smectic-C Transition: Orientational Order, Thomas E. Lockhart, David W. Allender, Edward Gelerinter, David L. Johnson

Physics Publications

The results of direct measurements of the principal indices of refraction in the smectic-A and smectic-C phases of two homologous liquid crystals are reported. These results are compared qualitatively with the orientational model of Straley and with a model based on anisotropic nematic fluctuations due to coupling between orientational and translational order.


Self-Consistent Treatment Of The Layer Spacing In Smectic A Liquid-Crystals, David W. Allender, M. Kuzma Jun 1979

Self-Consistent Treatment Of The Layer Spacing In Smectic A Liquid-Crystals, David W. Allender, M. Kuzma

Physics Publications

No abstract provided.


Nmr In Spinning Samples Of Biaxial Liquid-Crystals, Demetri J. Photinos, Philip J. Bos, Paul Ukleja, J. William Doane Jan 1979

Nmr In Spinning Samples Of Biaxial Liquid-Crystals, Demetri J. Photinos, Philip J. Bos, Paul Ukleja, J. William Doane

Chemical Physics Publications

Magnetic resonance measurements on a spinning sample of deuterated n-heptyloxyazoxybenzene (HOAB dsp) are presented. The resulting spectral patterns for the deuterated terminal methyl groups display the biaxial character of the smectic-C phase. Values for those biaxial order parameters which survive under free molecular rotation are directly determined from the shape of the spectral patterns. Parameters expressing biased rotation are also present and contribute significantly to the biaxiality.