Regular structures in 5CB under the joint action of AC and DC voltages

LUIS E. AGUIRRE; E. ANOARDO; NANDOR EBER; AGNES BUKA

PHYSICAL REVIEW E

AMER PHYSICAL SOC

Lugar: New York; Año: 2012 p. 1 - 9

1539-3755

A nematic liquid crystal with high, positive dielectric anisotropy (5CB) has been studied under the influence of the combined action of a dc and an ac electric field. Broad frequency, voltage, and cell thickness ranges were considered. Pattern morphologies were identified; the thresholds and critical wave numbers were measured and analyzed as a function of frequency, dc-to-ac voltage ratio, and thickness. The current-voltage characteristics were simultaneously detected.