Phase Diagram of the Nematic-Smectic A Transition of the Binary Mixture of Parallel Hard Cylinders of Different Lengths

1994 ◽  
Vol 63 (3) ◽  
pp. 984-994 ◽  
Author(s):  
Tomonori Koda ◽  
Hatsuo Kimura
Keyword(s):  
Phase Diagram ◽  
Binary Mixture ◽  
Smectic A

Separation of nematic and smectic-A potential effects on solute ordering in a series of binary 6OCB–8OCB mixtures

2011 ◽  
Vol 89 (7) ◽  
pp. 900-908 ◽  
Author(s):  
E. Elliott Burnell ◽  
Ronald Y. Dong ◽  
Adrian C.J. Weber ◽  
Xuan Yang ◽  
Anand Yethiraj
Keyword(s):  
Phase Diagram ◽  
Binary Mixture ◽  
Optical Microscopy ◽  
Absolute Magnitude ◽  
Order Parameters ◽  
The Novel ◽  
Temperature Range ◽  
H Nmr ◽  
Smectic A ◽  
Phase Sequence

1H NMR and optical microscopy have been used to study four solutes dissolved in samples of a binary mixture of 4-n-hexyloxy-4′-cyanobiphenyl (6OCB) and 4-n-octyloxy-4′-cyanobiphenyl (8OCB) that are close to the region of the phase diagram where the smectic-A (SmA) and re-entrant nematic (RN) phases exist. Optical microscopy clearly indicates that one of the four studied samples shows the phase sequence of isotropic–nematic–SmA–RN. The derived solute order parameters were interpreted by means of two Maier–Saupe mechanisms in conjunction with the Kobayashi–McMillan theory in the case of the SmA phase. The novel feature of this study is that the nematic potential is extrapolated from the nematic to the SmA phase based on concentrations of the 6OCB–8OCB mixtures. The derived smectic order parameters for each of the studied solutes clearly show a maximum absolute magnitude near the centre of the SmA temperature range. The different partitioning of these solutes in the binary mixture is also discussed.

Studies of critical behaviour at the nematic to smectic A phase transition in C6 and C7 binary mixture system

2008 ◽  
Vol 41 (6) ◽  
pp. 062002 ◽  
Author(s):  
SeungYeon Jeong ◽  
DongWoo Kim ◽  
KungWon Rhie ◽  
MunPyo Hong ◽  
Satyendra Kumar ◽  
...  
Keyword(s):  
Phase Transition ◽  
Binary Mixture ◽  
Critical Behaviour ◽  
Smectic A ◽  
Smectic A Phase ◽  
Mixture System

Phase diagram exhibiting a smectic-A–smectic-C–smectic-Fmeeting point

1992 ◽  
Vol 46 (2) ◽  
pp. R726-R728 ◽  
Author(s):  
V. N. Raja ◽  
D. S. Shankar Rao ◽  
S. Krishna Prasad
Keyword(s):  
Phase Diagram ◽  
Smectic A ◽  
Smectic C

PHASE DIAGRAM OF BINARY MIXTURE TM74A:E48 LIQUID CRYSTALS

2001 ◽  
Vol 366 (1) ◽  
pp. 101-106 ◽  
Author(s):  
Serafin Delica ◽  
Melvin Estonactoc ◽  
Mary Claire Micaller ◽  
Leorina Cada ◽  
Zenaida Domingo
Keyword(s):  
Phase Diagram ◽  
Liquid Crystals ◽  
Binary Mixture
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