In this paper we report the measurements of the thermally induced depolarization currents in a metallorganic liquid crystal. The depolarization current dependence on temperature has been interpreted in term of an internal electric field set up during the tooling down of the sample under a d.c. external applied voltage. The transition temperature shift verifies a Clausius-Clapeyron type equation also giving evidence of the saturation of the polarization. By analyzing the experimental data, we can hypothesize that there is a double order in the system: the nematic order, concerning the director n which behaves quite normally, and an electric order, concerning the electric dipoles. Whereas the first type of order induces a phase in the system (the nematic phase) it is doubtful that the second ones induces a real phase in the system.

In this paper we report the measurements of the thermally induced depolarization currents in a metallorganic liquid crystal. The depolarization current dependence on temperature has been interpreted in term of an internal electric field set up during the tooling down of the sample under a d.c. external applied voltage. The transition temperature shift verifies a Clausius-Clapeyron type equation also giving evidence of the saturation of the polarization. By analyzing the experimental data, we can hypothesize that there is a double order in the system: the nematic order, concerning the director n which behaves quite normally, and an electric order, concerning the electric dipoles. Whereas the first type of order induces a phase in the

Thermally induced depolarization currents in a palladium containing metallorganic liquid crystal

SCARAMUZZA, Nicola;STRANGI, Giuseppe;VERSACE, Consolato Carlo;
2000-01-01

Abstract

In this paper we report the measurements of the thermally induced depolarization currents in a metallorganic liquid crystal. The depolarization current dependence on temperature has been interpreted in term of an internal electric field set up during the tooling down of the sample under a d.c. external applied voltage. The transition temperature shift verifies a Clausius-Clapeyron type equation also giving evidence of the saturation of the polarization. By analyzing the experimental data, we can hypothesize that there is a double order in the system: the nematic order, concerning the director n which behaves quite normally, and an electric order, concerning the electric dipoles. Whereas the first type of order induces a phase in the system (the nematic phase) it is doubtful that the second ones induces a real phase in the system.
2000
In this paper we report the measurements of the thermally induced depolarization currents in a metallorganic liquid crystal. The depolarization current dependence on temperature has been interpreted in term of an internal electric field set up during the tooling down of the sample under a d.c. external applied voltage. The transition temperature shift verifies a Clausius-Clapeyron type equation also giving evidence of the saturation of the polarization. By analyzing the experimental data, we can hypothesize that there is a double order in the system: the nematic order, concerning the director n which behaves quite normally, and an electric order, concerning the electric dipoles. Whereas the first type of order induces a phase in the
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/135890
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 2
social impact