title: Liquid crystal binary mixtures of 8OCB + 10OCB. Evidence for a smectic A-to-nematic tricritical point.
abstract: The two-component system octyloxycyanobiphenyl (8OCB) + decyloxycyanobiphenil (10OCB) has been studied by means of modulated differential scanning calorimetry as well as optical microscopy. The general trends of the phase diagram are similar to the two-component system octylcyanobiphenyl (8CB) + decylcyanobiphenil (10CB), previously published. Evidence for the existence of a TCP have been reported, the molar composition being about 0.33 of 10OCB. Additionally, the smectic mesophase of the 8OCB + 10OCB mixtures has been unmistakably characterized through optical measurements as smectic A for the whole composition range.
authors.affiliation: Laboratori de Caracterització de Materials (LCM), Departament de Física i Enginyeria Nuclear, ETSEIB Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain.
authors.forename: Mohamed B
authors.initials: MB
authors.lastname: Sied
authors.forename: Sergio
authors.initials: S
authors.lastname: Diez
authors.forename: Josep
authors.initials: J
authors.lastname: Salud
authors.forename: David O
authors.initials: DO
authors.lastname: López
authors.forename: Paul
authors.initials: P
authors.lastname: Cusmin
authors.forename: Josep Ll
authors.initials: JL
authors.lastname: Tamarit
authors.forename: María
authors.initials: M
authors.lastname: Barrio