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http://hdl.handle.net/2289/1278
Title: | Optical investigations on the biaxial smectic-A phase of a bent-core compound |
Authors: | Wang, S.T. Han, X.F. Cady, A. Liu, Z.Q. Kamenev, A. Glazman, L. Sadashiva, B.K. Reddy, Amaranatha R. Huang, C.C. |
Issue Date: | 21-Dec-2004 |
Publisher: | The American Physical Society |
Citation: | Physical Review E, 2004, Vol.70, 061705 |
Abstract: | Several unique optical properties have been obtained from freestanding films of a bent-core compound. Our experimental results indicate the existence of the antiferroelectric biaxial smectic-A (Sm A) phase. The critical exponent associated with the biaxiality through the uniaxial–antiferroelectric biaxial Sm A transition has been measured to be 0.82±0.04, which is in good agreement with our theoretical calculation. Our theoretical advances further demonstrate that the critical behavior of the optical biaxiality with the order parameter being a vector is described by the secondary-order parameter of the three-dimensional XY model. We also observe a remarkable even–odd layering effect exhibited by the surface layers of freestanding films under an applied electric field (approximately 20 V/cm) in the film plane. |
URI: | http://hdl.handle.net/2289/1278 |
ISSN: | ISSN 1550-2376 (online) 1539-3755 |
Alternative Location: | http://link.aps.org/abstract/PRE/v70/e061705 |
Copyright: | (2004) by the American Physical Society |
Appears in Collections: | Research Papers (SCM) |
Files in This Item:
File | Description | Size | Format | |
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2004 PRE 70 p061705.pdf | 6 pages | 232.06 kB | Adobe PDF | View/Open |
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