J
Josep Salud
Researcher at Polytechnic University of Catalonia
Publications - 63
Citations - 1848
Josep Salud 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 21, co-authored 61 publications receiving 1667 citations.
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Journal ArticleDOI
Phase behavior and properties of the liquid-crystal dimer 1′′,7′′-bis(4-cyanobiphenyl-4′-yl) heptane: A twist-bend nematic liquid crystal
Mirko Cestari,Mirko Cestari,S. Diez-Berart,D. A. Dunmur,Alberta Ferrarini,M. R. de la Fuente,D. J. B. Jackson,David López,Geoffrey R. Luckhurst,M. A. Perez-Jubindo,Robert M. Richardson,Josep Salud,Bakir A. Timimi,Herbert Zimmermann +13 more
TL;DR: It is concluded that the low-temperature mesophase of CB7CB is a new type of uniaxial nematic phase having a nonuniform director distribution composed of twist-bend deformations, and calculations using an atomistic model and the surface interaction potential with Monte Carlo sampling predict dielectric and elastic properties in the nematics phase.
Journal ArticleDOI
Understanding the twist-bend nematic phase: the characterisation of 1-(4-cyanobiphenyl-4′-yloxy)-6-(4-cyanobiphenyl-4′-yl)hexane (CB6OCB) and comparison with CB7CB
Daniel A. Paterson,Min Gao,Young-Ki Kim,Afsoon Jamali,Kirsten L. Finley,Beatriz Robles-Hernández,S. Diez-Berart,Josep Salud,M. Rosario de la Fuente,Bakir A. Timimi,Herbert Zimmermann,Cristina Greco,Alberta Ferrarini,John Storey,David López,Oleg D. Lavrentovich,Geoffrey R. Luckhurst,Corrie T. Imrie +17 more
TL;DR: A complementary extended molecular field theory was found to be in suggestive accord with the (2)H-NMR studies of CB6OCB-d2, and those already known for CB7CB-d4, including the reduced transition temperature, TNTBN/TNI, and the order parameter of the mesogenic arms in the N phase close to the NTB-N transition.
Journal ArticleDOI
Dielectric, calorimetric and mesophase properties of 1′′-(2′,4-difluorobiphenyl-4′-yloxy)-9′′-(4-cyanobiphenyl-4′-yloxy) nonane: an odd liquid crystal dimer with a monotropic mesophase having the characteristics of a twist-bend nematic phase
Nerea Sebastián,David López,Beatriz Robles-Hernández,Beatriz Robles-Hernández,M. R. de la Fuente,Josep Salud,M. A. Perez-Jubindo,D. A. Dunmur,Geoffrey R. Luckhurst,D. J. B. Jackson +9 more
TL;DR: It is concluded that the low temperature mesophase exhibits the characteristics of a twist-bend nematic phase, and the nematic-to-isotropic phase transition has been exhaustively studied from the accurate evolution of the heat capacity and the static dielectric permittivity data.
Journal ArticleDOI
Twist, tilt, and orientational order at the nematic to twist-bend nematic phase transition of 1″,9″-bis(4-cyanobiphenyl-4'-yl) nonane: A dielectric, 2 H NMR, and calorimetric study
Beatriz Robles-Hernández,Nerea Sebastián,Nerea Sebastián,M. Rosario de la Fuente,David López,S. Diez-Berart,Josep Salud,M. Blanca Ros,D. A. Dunmur,Geoffrey R. Luckhurst,Bakir A. Timimi +10 more
TL;DR: The nature of the nematic-nematic phase transition in the liquid crystal dimer 1″,9″-bis(4-cyanobiphenyl-4'-yl) nonane (CB9CB) has been investigated using techniques of calorimetry, dynamic dielectric response measurements, and (2)H NMR spectroscopy.
Journal ArticleDOI
Anisotropy of Intermolecular Interactions from the Study of the Thermal-Expansion Tensor
TL;DR: In this article, the anisotropy of the intermolecular interactions in the low-temperature ordered phases of three chemically and structurally related compounds [neopentyl glycol, (CH3)2C(CH2OH)2, pivalic acid, CH3)3C(COOH), and neopentylon alcohol, all of which display an orientationally disordered high temperature phase, has been shown by means of the isobaric thermalexpansion tensor.