P
P. Cusmin
Researcher at Polytechnic University of Catalonia
Publications - 6
Citations - 101
P. Cusmin is an academic researcher from Polytechnic University of Catalonia. The author has contributed to research in topics: Liquid crystal & Phase transition. The author has an hindex of 4, co-authored 6 publications receiving 94 citations.
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Critical behavior and scaling relationships at the SmA(d)-N and N-I transitions in nonyloxycyanobiphenyl (9OCB).
TL;DR: It is proved that both phase transitions are weakly first order, displaying a nearly tricritical behavior, and the width of metastable regions seems to be dependent on the physical magnitude, although specific heat and volumetric determinations allow for comparable results.
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Liquid crystal binary mixtures of 8OCB + 10OCB. Evidence for a smectic A-to-nematic tricritical point.
Mohamed B. Sied,Sergio Diez,Josep Salud,David López,P. Cusmin,Josep Ll. Tamarit,Maria Barrio +6 more
TL;DR: The Smectic mesophase of the 8OCB + 10OCB mixtures has been unmistakably characterized through optical measurements as smectic A for the whole composition range.
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Re-entrant Nematic Behavior in the 7OCB+9OCB Mixtures: Evidence for Multiple Nematic−Smectic Tricritical Points
P. Cusmin,Josep Salud,David López,Maria R. De La Fuente,Sergio Diez,M. A. Perez-Jubindo,Maria Barrio,Josep Ll. Tamarit +7 more
TL;DR: It was experimentally established that the 7OCB+9OCB two-component system exhibits a monotropic re-entrant nematic behavior.
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Study of the Critical Behavior and Scaling Relationships at the N-to-I Phase Transition in Hexyloxycyanobiphenyl
TL;DR: An exhaustive analysis of the critical behavior of the nematic to isotropic (N-to-I) phase transition on the liquid crystal hexyloxycyanobiphenyl (6OCB) has been performed and some discrepancies have been observed for the dielectric data in relation to such a scaling relationship.
Journal ArticleDOI
Overall analysis of first‐order phase transitions in some alkyloxycyanobiphenyl liquid crystals
P. Cusmin,Josep Salud,David López,S. Diez-Berart,M. R. de la Fuente,M. A. Perez-Jubindo,N. Veglio +6 more
TL;DR: In this paper, measurements of pressure, molar volume and specific heat as functions of temperature in the isotropic (I) phase as well as in the smectic A (SmA) and nematic (N) mesophases of some alkyloxycyanobiphenyl compounds were carried out using differential thermal analysis under pressure, densitometry, X-ray powder diffraction and modulated differential scanning calorimetry.