Determination of phase transition from nematic to isotropic state in carbon nano-balls' doped nematic liquid crystals by electrical conductivity-dielectric measurements

Okutan M., San S. E., Başaran E., Yakuphanoglu F.

PHYSICS LETTERS A, vol.339, pp.461-465, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 339
  • Publication Date: 2005
  • Doi Number: 10.1016/j.physleta.2005.04.009
  • Journal Name: PHYSICS LETTERS A
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.461-465
  • Yıldız Technical University Affiliated: No

Abstract

The phase transition in carbon nano-balls' doped nematic liquid crystals has been investigated by electrical conductivity-dielectric measurements. The results of electrical conductivity and dielectric constant as a function temperature and frequency indicate that a phase transition, which is of the first order, takes place from nematic state and isotropic state. The phase transition for E7 and E7/C60 samples takes place at 326 and 321 K temperatures, respectively. (c) 2005 Elsevier B.V. All rights reserved.