Induced smectic A phase by homeotropic orientation in 4, n‐octyloxybenzoic acid (OOBA) at nematic‐smectic C phase transition | Zendy

Simova P. | Zendy; Petrov M. | Zendy

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Induced smectic A phase by homeotropic orientation in 4, n‐octyloxybenzoic acid (OOBA) at nematic‐smectic C phase transition

Author(s) -

Simova P.,

Petrov M.

Publication year - 1985

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.2170200927

Subject(s) - homeotropic alignment , liquid crystal , phase (matter) , condensed matter physics , materials science , phase transition , orientation (vector space) , chemistry , geometry , physics , organic chemistry , mathematics

Using homeotropic and quasi‐homeotropic orientation in thin film of 4‐n‐octyloxybenzoic acid, we indicated intermediate smectic A‐like state during the nematic‐smectic C phase transition. Pseudoisotropic and focal conic textures are characteristic for homeotropic and quasihomeotropic orientations respectively. The smectic A‐like state induced by the boundary conditions exists in a very short (about 0.5 °C) temperature region.

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