Title: Simple systems under high pressure
1Simple systems under high pressure
INFM Researcher (Tenure Track) CRS Soft
LENS associate (Eur. Lab. for Non Linear
Spectroscopy)
2Pressure effects on molecular systems
P
P
Molecular crystal
Gas phase P0
3Pressure induced transformations
4Experimental facilities at LENS
High Pressure facility Diamond Anvil Cell
(DAC), resistive heaters and cryostats Raman and
Brillouin scattering setting up 0.5m triple
monochromator (Acton THR-555) double 2m
monochromator (Sopra) Krypton and Argon ion
lasers Infrared absorption High
resolution and sensitivity Fourier transform
Michelson interferometer Bruker IFS 120 X
ray diffraction Setting up a new laboratory
Mo tubefocusing opticsCCD detector
High Pressure Group at LENS Roberto Bini
(Associate Prof.) Federico Gorelli
(Researcher) Mario Santoro (Researcher) Matteo
Ceppatelli (Post Doc) Lucia Ciabini (Post
Doc) Valentina Giordano (PhD) Margherita Citroni
(PhD) Luca Fontana (PhD)
5Recent activity
- Setting up a new X ray diffractometer for powders
under high pressure (inside the DAC Diamond Anvil
Cell) (Valentina Giordano and Samuele Ciattini) - Experimental study of the high pressure and
temperature crystalline phases of CO2 with
vibrational spectroscopy (IR and Raman)
(Valentina Giordano and Roberto Bini) Phys. Rev.
Lett. accepted (2004) - Amorphyzation of benzene at high pressure and
temperature studied with IR absorption and X ray
diffraction techniques (ESRF) (Mario Santoro,
Roberto Bini and Lucia Ciabini) work in progress - Raman scattering study of the phase diagram (P, T
and composition) of lead zirconate titanate solid
solution (PZT ceramic) (Julian Haines and Jerome
Rouquette) Phys. Rev. B 70, 014108 (2004) - Study of the phase diagram of Nitrogen with Raman
scattering measurements (Leonardo Tassini and
Lorenzo Ulivi) submitted to J. Phys. Chem. (2004) - IR absorption study on sulfur (B. Eckert, H.
Jodl) and on metallization of SnO, SiO and GeO
(E. Sterer, A. Pesah) local contact for the
guests of the High Pressure Facility at LENS
6Future research
- Soft matter under pressure
- Study of glass transitions with pressure and
temperature - Study of the dynamics of non equilibrium systems
at high pressure - Collaborations with G. Ruocco, R. di Leonardo, S.
Capaccioli, R. Eramo and with the Disordered
Systems Group at LENS (R. Torre)