Riccardo Barberi
Collège de France
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Publication
Featured researches published by Riccardo Barberi.
Physics of the Solid State | 2006
E. D. Mishina; N.K. Sherstyuk; V.O. Val'dnera; A.V. Mishina; K. A. Vorotilov; V.A. Vasil'ev; A. S. Sigov; M. P. De Santo; E. Cazzanelli; Riccardo Barberi; T.H.M. Rasing
Ferroelectric composite two-dimensional ferroelectric/aluminum oxide nanostructures were studied. A porous aluminum oxide matrix was used as a template into which a ferroelectric precursor was introduced, followed by annealing. The prepared nanostructures were studied using optical second harmonic generation and micro-Raman scattering.
Molecular Crystals and Liquid Crystals | 1997
I. Lelidis; J. J. Bonvent; Riccardo Barberi; Roberto Bartolino
Abstract We report some preliminary results on the morphology of thin photopolymer films. They are observed by means of Atomic Force Microscopy. These films are used as anisotropic substrates for the anchoring of liquid crystals. We study the influence of growth conditions, the drying temperature and the drying time, on the obtained thin film topology with the aim to correlate the observed surface structure with the liquid crystals anchoring. It was found that the final film roughness strongly depends on the drying conditions which govern the photopolymer surface mobility.
Molecular Crystals and Liquid Crystals | 1997
M.P. Valignat; Danilo Duca; Riccardo Barberi; A. M. Cazabat; Roberto Bartolino
Abstract We present a study of the wetting behavior of small drops of cyanobiphenyl on solid surfaces. Macroscopic and microscopic measurements are compared in order to understand the relationship between anchoring and wetting.
Studies in Interface Science | 2001
L. M. Blinov; Riccardo Barberi; S. P. Palto; T.H.M. Rasing; M.P. De Santo; S. G. Yudin
A comparative study of ultrathin dielectric (an azo-compound) and ferroelectric (copolymer P(VDF-TrFE)) Langmuir-Blodgett (LB) films has been carried out by Electrostatic Force Microscopy (EFM). Films were poled locally by a strong d.c. field applied between a conductive tip of an Atomic Force Microscope (AFM) and the bottom Al electrode. The electrically poled domain was studied by EFM using a weak a.c. electric field and a lock-in amplifier technique. Two modes, a contact and non-contact ones, allowed for the measurement of field E a in the air gap between the film and the tip and the piezoelectric distortion of the film due to the d.c. field aligned spontaneous polarization. Simultaneously the topographic relief of the same area was imaged. The results confirm unequivocally a possibility to switch ferroelectric LB film locally by an AFM tip.
Archive | 1996
Riccardo Barberi; Roberto Bartolino; I. Dozov; Georges Durand; Michele Giocondo; Jun Li
Archive | 1996
Riccardo Barberi; Georges Durand; Roberto Bartolino; Michele Giocondo; I. Dozov; Jun Li
Archive | 2011
Salvatore Abate; Riccardo Barberi; Giovanni Desiderio; Giuseppe Lombardo
World Academy of Science, Engineering and Technology, International Journal of Biomedical and Biological Engineering | 2016
Cristina Labate; M. P. De Santo; Giuseppe Lombardo; Riccardo Barberi; Marco Lombardo; Noël M. Ziebarth
Archive | 2011
Salvatore Abate; Riccardo Barberi; Giovanni Desiderio; Giuseppe Lombardo
Archive | 2010
Salvatore Abate; Riccardo Barberi; Michele Chiarantoni; Giovanni Desiderio; Emilio Labbozzetta; Giuseppe Lombardo; Mariacarla Lugarà; Manuela Marino; Sergio Martino; Giorgio Mazzi