Linear and nonlinear dielectric constant tensor for monolayer films in terms of orientational order parameters

Citation
Cx. Wu et al., Linear and nonlinear dielectric constant tensor for monolayer films in terms of orientational order parameters, J CHEM PHYS, 112(23), 2000, pp. 10548-10555
Citations number
39
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF CHEMICAL PHYSICS
ISSN journal
0021-9606 → ACNP
Volume
112
Issue
23
Year of publication
2000
Pages
10548 - 10555
Database
ISI
SICI code
0021-9606(20000615)112:23<10548:LANDCT>2.0.ZU;2-M
Abstract
We give a general expression of the dielectric constant tensor in orientati onal orders in the applied static or low-frequency electric field for the s emi-two-dimensional monolayer films with C-infinity upsilon symmetry. The d ielectric anisotropic orientational tensor and orientational polarization t ensor are derived in orientational order parameters. The nonlinear electro- optical Pockels effect including the local-field influence is also discusse d using the orientational orders. A numerical calculation result shows that the first orientational order parameter S-1 is a destructive order while t he second orientational orientational order parameter S-2 is a constructive one to the dielectric constant in the normal direction of monolayer films. (C) 2000 American Institute of Physics. [S0021-9606(00)70323-0].