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|Title:||Observation of the Smectic-C—Smectic-I Critical Point|
|Authors:||Krishna Prasad, S.|
Shankar Rao, D.S.
|Publisher:||The American Physical Society|
|Citation:||Physical Review Letters, 1995, Vol.74, 270-273|
|Abstract:||We report the first observation of the smectic-C—smectic-I (C-I) critical point by x-ray diffraction studies on a binary system. These results are in agreement with the theoretical idea of Nelson and Halperin that coupling to the molecular tilt should induce hexatic order even in the C phase, and as such both C and I (a tilted hexatic phase) should have the same symmetry. The results provide evidence in support of the recent theory of Defontaines and Prost proposing a new universality class for critical points in layered systems.|
|Copyright:||(1995) by the American Physical Society|
|Appears in Collections:||Research Papers (SCM)|
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