Avtor/Urednik		Mieda, Yoshitaka; Hoshi, Hajime; Takanishi, Yoichi; Takezoe, Hideo; Žekš, Boštjan
Naslov		The mechanism of sign inversion of spontaneous polarization in ferroelectric SmC liquid crystals
Tip		članek
Vir		Phys Rev, E Stat Phys Plasmas Fluids Relat
Vol. in št.		Letnik 67, št. 2
Leto izdaje		2003
Obseg		str. 1-6
Jezik		eng
Abstrakt		The ferroelectric liquid crystal FLC-117, which is known to exhibit at a certain temperature the sign inversion of spontaneous polarization (P-s), is studied under an electric field. From the analysis of the electro-optic response and the direct texture observations, it is concluded that the inversion temperature of P-s has the applied voltage dependence. To interpret our experimental result, we introduce a coupling term between the molecular dipole moments and the magnitude of the applied electric fields to the asymmetric rotational potential about the molecular long axis. The simulated results using this potential are in accordance with our experimental result.
Deskriptorji		BIOPHYSICS ELECTROMAGNETIC FIELDS CRYSTALLIZATION FERROUS COMPOUNDS