Optical, resonant X-ray scattering, and calorimetric investigations of twoliquid crystal compounds exhibiting the SmA-SmCα*-SmC* transitions

C. C. Huang; Z. Q. Liu; A. Cady; R. Pindak; W. Caliebe; P. Barois; H. T. Nguyen; K. Ema; K. Takekoshi; H. Yao

doi:10.1080/02678290410001637167

Optical, resonant X-ray scattering, and calorimetric investigations of twoliquid crystal compounds exhibiting the SmA-SmC_α-SmC transitions

C. C. Huang, Z. Q. Liu, A. Cady, R. Pindak, W. Caliebe, P. Barois, H. T. Nguyen, K. Ema, K. Takekoshi, H. Yao

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Three experimental measurements have been conducted to investigate the nature of the SmA-SmC_α*-SmC* phase transitions of two liquid crystal compounds. The SmA-SmC_α* transition shows a continuous transition with XY-like critical exponents. The SmC _α*-SmC* transition displays a rapid variation of the incommensurate helical pitch. One of the compounds shows a small jump in the helical pitch, which signals a first order transition and is consistent with high resolution calorimetric results.

Original language	English (US)
Pages (from-to)	127-135
Number of pages	9
Journal	Liquid Crystals
Volume	31
Issue number	1
DOIs	https://doi.org/10.1080/02678290410001637167
State	Published - Jan 2004

Bibliographical note

Funding Information:
This work was partially supported by the National Science Foundation under Grants No. DMR-0106122 and INT-9815859, and Grant-in-Aid for Scientific Research by the Ministry of Education and Science, No. 12129204. The research was carried out in part at the National Synchrotron Light Source, Brookhaven National Laboratory, which is supported by the U.S. Department of Energy, Division of Materials Sciences and Division of Chemical Sciences, under Contract No. DE-AC02-98CH10886.

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Optical, resonant X-ray scattering, and calorimetric investigations of twoliquid crystal compounds exhibiting the SmA-SmC_α*-SmC* transitions. / Huang, C. C.; Liu, Z. Q.; Cady, A.; Pindak, R.; Caliebe, W.; Barois, P.; Nguyen, H. T.; Ema, K.; Takekoshi, K.; Yao, H.

In: Liquid Crystals, Vol. 31, No. 1, 01.2004, p. 127-135.

Research output: Contribution to journal › Article › peer-review

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title = "Optical, resonant X-ray scattering, and calorimetric investigations of twoliquid crystal compounds exhibiting the SmA-SmCα*-SmC* transitions",

abstract = "Three experimental measurements have been conducted to investigate the nature of the SmA-SmCα*-SmC* phase transitions of two liquid crystal compounds. The SmA-SmCα* transition shows a continuous transition with XY-like critical exponents. The SmC α*-SmC* transition displays a rapid variation of the incommensurate helical pitch. One of the compounds shows a small jump in the helical pitch, which signals a first order transition and is consistent with high resolution calorimetric results.",

author = "Huang, {C. C.} and Liu, {Z. Q.} and A. Cady and R. Pindak and W. Caliebe and P. Barois and Nguyen, {H. T.} and K. Ema and K. Takekoshi and H. Yao",

note = "Funding Information: This work was partially supported by the National Science Foundation under Grants No. DMR-0106122 and INT-9815859, and Grant-in-Aid for Scientific Research by the Ministry of Education and Science, No. 12129204. The research was carried out in part at the National Synchrotron Light Source, Brookhaven National Laboratory, which is supported by the U.S. Department of Energy, Division of Materials Sciences and Division of Chemical Sciences, under Contract No. DE-AC02-98CH10886.",

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AU - Huang, C. C.

AU - Liu, Z. Q.

AU - Cady, A.

AU - Pindak, R.

AU - Caliebe, W.

AU - Barois, P.

AU - Nguyen, H. T.

AU - Ema, K.

AU - Takekoshi, K.

AU - Yao, H.

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AB - Three experimental measurements have been conducted to investigate the nature of the SmA-SmCα*-SmC* phase transitions of two liquid crystal compounds. The SmA-SmCα* transition shows a continuous transition with XY-like critical exponents. The SmC α*-SmC* transition displays a rapid variation of the incommensurate helical pitch. One of the compounds shows a small jump in the helical pitch, which signals a first order transition and is consistent with high resolution calorimetric results.

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