Research Outputs Oreste Pilla


  • L. Bove, E. Fabiani, A. Fontana, F. Paoletti, C. Petrillo, O. Pilla, C. Bento, "Brillouin neutron scattering of v-GeO2" in EUROPHYSICS LETTERS, v. 71, n. 4 (2005), p. 563-569. - URL: http://iopscience.iop.org/0295-5075/71/4/563/pdf/epl_71_4_563.pdf - see details
  • S. Caponi, G. Carini, G. D'Angelo, A. Fontana, O. Pilla, F. Rossi, F. Terki, G. Tripodo, T. Woignier, "Acoustic and thermal properties of silica aerogels and xerogels" in PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, v. 70, n. 21 (2004), p. 210204-1-210204-8 - see details
  • E. Fabiani, L. Bove, A. Fontana, O. Pilla, C. Petrillo, "Dynamic structure factor of vitreous germania" in PHYSICA. B, CONDENSED MATTER, v. 350, n. 1-3, Supplement 1 (2004), p. 1099-1102 - see details
  • B. Ruzicka, T. Scopigno, S. Caponi, A. Fontana, O. Pilla, P. Giura, G. Monaco, E. Pontecorvo, G. Ruocco, F. Sette, "Evidence of anomalous dispersion of the generalized sound velocity in glasses" in PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, v. 69, n. 10 (2004), p. 100201-1-100201-4 - see details
  • O. Pilla, S. Caponi, A. Fontana, R. R. Gonþalves, M. Montagna, F. Rossi, G. Viliani, L. Angelani, G. Ruocco, G. Monaco, F. Sette, "The low energy excess of vibrational states in v-SiO2: the role of transverse dynamics" in JOURNAL OF PHYSICS. CONDENSED MATTER, v. 16, n. 47 (2004), p. 8519-8530 - see details
  • S. Caponi, A. Fontana, M. Montagna, O. Pilla, F. Rossi, F. Terki, T. Woigner, "Acoustic attenuation in silica porous systems" in JOURNAL OF NON-CRYSTALLINE SOLIDS, v. 322, (2003), p. 29-34 - see details
  • E. Fabiani, M. Gonzalez, S. Caponi, A. Fontana, M. Montagna, O. Pilla, F. Rossi, C. Varsamis, "Neutron scattering studies of vitreous germania" in JOURNAL OF NON-CRYSTALLINE SOLIDS, v. 322, (2003), p. 7-10 - see details
  • O. Pilla, L. Angelani, A. Fontana, R. R. Gonþalves, G. Ruocco, "Structural and dynamical consequences of density variation in vitreous silica" in JOURNAL OF PHYSICS. CONDENSED MATTER, v. 15, (2003), p. S995-S1005 - see details
  • O. Pilla, A. Fontana, S. Caponi, F. Rossi, G. Viliani, M. Gonzalez, E. Fabiani, C. Varsamis, "Vibrational dynamic of 'strong' glasses: the case of v-SiO2 and v-GeO2" in JOURNAL OF NON-CRYSTALLINE SOLIDS, v. 322, (2003), p. 53-57 - see details
  • A. Teixeira, O. Pilla, P. Freire, F. Rossi, "Brillouin Scattering Study of Phase Transitions in Lik0. 80(NH4)0. 20SO4 Mixed Crystals" in JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, v. 63, (2002), p. 1951-1956 - see details
  • O. Pilla, A. Fontana, P. Freire, A. Teixeira, "High Pressure Brillouin Scattering from Vitreous (Y2O3)0. 27(P2O5)0. 73" in PHILOSOPHICAL MAGAZINE. B. PHYSICS OF CONDENSED MATTER. STRUCTURAL, ELECTRONIC, OPTICAL AND MAGNETIC PROPERTIES, v. 82, (2002), p. 755-761 - see details
  • O. Pilla, S. Caponi, A. Fontana, M. Montagna, L. Righetti, F. Rossi, G. Viliani, G. Ruocco, G. Monaco, F. Sette, R. Verbeni, G. Cicognani, A. J. Dianoux, "X-ray and neutron scattering studies in vitreus silica: acoustic nature of vibrational dynamics in the mesoscopic range" in PHILOSOPHICAL MAGAZINE. B, v. 82, n. 2 (2002), p. 223-232 - see details
  • O. Pilla, A. Fontana, G. Viliani, "From aerogel to compact glasses: effect of the density" in JOURNAL OF NON-CRYSTALLINE SOLIDS, v. 280, (2001), p. 164-168 - see details
  • O. Pilla, A. Cunsolo, A. Fontana, C. Masciovecchio, G. Monaco, M. Montagna, G. Ruocco, T. Scopigno, F. Sette, "Nature of the Short Wavelength Excitations in Vitreous Silica: An X-Ray Brillouin Scattering Study" in PHYSICAL REVIEW LETTERS, v. 85, (2000), p. 2136-2139 - see details
  • A. Souza Filho, P. Freire, O. Pilla, A. Ajala, J. Mendes-filho, F. Melo, V. Freire, V. Lemos, "Pressure effects in the Raman spectrum of $WO_3$ microcrystals" in PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, v. 62, (2000), p. 3699-3705 - see details
  • V. Lemos, O. Pilla, M. Montagna, "Direct Observation of the Acoustic Gaps in Ge/GexSi1-x Superlattices" in JOURNAL OF RAMAN SPECTROSCOPY, v. 30, (1999), p. 379-383 - see details
  • O. Pilla, G. Viliani, C. Brangian, "Energy and entropy barriers of two level systems in argon clusters: an energy landscape approach" in PHILOSOPHICAL MAGAZINE. B. PHYSICS OF CONDENSED MATTER. STRUCTURAL, ELECTRONIC, OPTICAL AND MAGNETIC PROPERTIES, v. 79, n. 11/12 (1999), p. 1965-1970 - see details
  • G. Daldoss, O. Pilla, G. Viliani, C. Brangian, G. Ruocco, "Energy landscape, two level systems, and entropy barriers in Lennard-Jones clusters" in PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, v. 60, (1999), p. 3200-3205 - see details
  • P. Freire, W. Paraguassu, A. Silva, O. Pilla, A. Teixeira, J. Sasaki, J. Mendes-filho, I. Guedes, F. Melo, "Investigation of phase transitions in LiK1-x(NH4)xSO4 mixed crystal" in SOLID STATE COMMUNICATIONS, v. 109, (1999), p. 507-510 - see details
  • P. Freire, V. Lemos, O. Pilla, N. Vieira Jr, "Pressure dependence of spin-orbit levels of Co2+ in KZnF3" in THE JOURNAL OF CHEMICAL PHYSICS, v. 110, (1999), p. 3995-3999 - see details
  • C. Brangian, O. Pilla, G. Viliani, "Transitions between metastable states in silica clusters" in PHILOSOPHICAL MAGAZINE. B. PHYSICS OF CONDENSED MATTER. STRUCTURAL, ELECTRONIC, OPTICAL AND MAGNETIC PROPERTIES, v. 79, n. 11/12 (1999), p. 1971-1979 - see details
  • P. Freire, O. Pilla, V. Lemos, F. Melo, I. Guedes, J. Mendes-filho, "Pressure induced changes of SO4 sites in LiNaSO4 crystals" in JOURNAL TITLE NOT FOUND, v. 7, (1998), p. 137-140 - see details
  • G. Daldoss, O. Pilla, G. Viliani, "Search for tunneling centres in Lennard-Jones clusters" in PHILOSOPHICAL MAGAZINE. B. PHYSICS OF CONDENSED MATTER. STRUCTURAL, ELECTRONIC, OPTICAL AND MAGNETIC PROPERTIES, v. 77, (1998), p. 689-695 - see details
  • O. Pilla, G. Viliani, R. Dell'anna, G. Ruocco, "Low frequency Raman scattering in model disordered solids: percolators above threshold" in PHYSICA. A, v. 247, (1997), p. 23-35 - see details
  • V. Lemos, O. Pilla, M. Montagna, "Acoustic Phonons in Superlattices" in JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY, v. 7, (1996), p. 471-477 - see details
  • M. Montagna, O. Pilla, V. Lemos, "Vibrational dinamics and low-frequency light scattering of semiconductors superlattices" in VUOTO, v. XXV, (1996), p. 41-44 - see details
  • G. Viliani, R. Dell'anna, O. Pilla, M. Montagna, G. Ruocco, G. Signorelli, V. Mazzacurati, "Raman scattering from fractals: Simulation on large structures by the method of moments" in PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, v. 52, (1995), p. 3346-3351 - see details
  • O. Pilla, P. Freire, V. Lemos, "Sharp line emission of KZnF3:Cr3+" in PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, v. 52, (1995), p. 177-182 - see details
  • P. Scardi, G. Carturan, R. Di Maggio, M. Montagna, O. Pilla, "Kinetics of phase separation and thermal behaviour of gel-derived Al2O3 doped by Cr2O3: an X-ray diffraction and fluorescence spectroscopy study" in JOURNAL OF MATERIALS SCIENCE, v. 25, (1990), p. 2705-2710. - DOI: 10.1007/BF00584868 - see details
  • R. S. Brusa, R. Grisenti, S. Liu, S. Oss, O. Pilla, A. Zecca, A. Dupasquier, F. Matacotta, "Inhibition of positron trapping by charge transfer in ceramic superconductors" in PHYSICA. C, SUPERCONDUCTIVITY, v. 156, (1988), p. 65-68 - see details