Experimental study of a SmA*-SmCA* phase transition

• Tipo: Artigo em Revista Científica Internacional
• Data: 2001

Autores

Sarmento, S (Autor) Outra; Chaves, MR (Autor) FCUP; Carvalho, PS (Autor) FCUP; Nguyen, HT (Autor) Outra

Revista

Título: Liquid Crystals

Vol. 28

Páginas: 1561-1571

ISSN: 0267-8292

Editora: Taylor & Francis

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 2 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-000-T6A

DOI: 10.1080/02678290110068415

Abstract (EN): We have performed a detailed experimental study of the electroclinic behaviour in the SmA* phase above a SmA*-SmCA* phase transition. The tilt angle and polarization were measured as a function of the applied a.c. electric field. and the dielectric constant was obtained under different values of the bias field (0 less than or equal to E-d.c. less than or equal to 3 V mum(-1)). In the region of linear regime, the behaviour observed for this SmA*-SmCA* phase transition is very similar to the one previously described for SmA*-SmC* phase transitions. The experimental results obtained under high bias field are in good agreement with the predictions of the simple theoretical model considered.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11