Recent Publications





2011

  •  C. De Michele, E. Del Gado,  D. Leporini,
Scaling between Structural Relaxation and Particle Caging in a Model Colloidal Gel
Soft Matter 7, 4025–4031 ( 2011).  pdf

  • A.Ottochian, D. Leporini,
Universal scaling between structural relaxation and caged dynamics in glass-forming systems: free volume and time scales
Journal of Non-Crystalline Solids 357, 298–301 (2011).  pdf (with correction)

  •  A.Ottochian, D. Leporini,
Scaling between structural relaxation and caged dynamics in Ca0.4K0.6(NO3)1.4 and glycerol: Free volume, time-scales and implications for pressure–energy correlations
Phil. Mag. 91, 1786–1795 (2011).  pdf

  •  M.Amirkhani, A.Taschin, R.Cucini, P.Bartolini, D.Leporini, R.Torre
Polymer Thermal and Acoustic Properties using Heterodyne Detected
Transient Grating Technique
Journal of Polymer Science:  Part B: Polymer Physics 49, 685–690 (2011).  pdf
 
 


2010

  •  D. Leporini,
Comment on “Hyperquenched Glassy Water and Hyperquenched Glassy Ethanol Probed by Single Molecule Spectroscopy”
J.Phys.Chem. B 114, 688 (2010).  pdf


 


2009

  • D. Banerjee,  S. N. Bhat, S. V. Bhat, D. Leporini,
ESR evidence for two coexisting liquid phases in deeply supercooled bulk water.
Proceedings of the National Academy of Sciences USA 106, 11448-11453 (2009).  pdf (printed version)

  • A. Ottochian, C. De Michele, and D. Leporini,
Universal divergenceless scaling between structural relaxation and caged dynamics in glass-forming systems.
J.Chem.Phys. 131, 224517 (2009). pdf

  • A. Ottochian, D. Molin, A. Barbieri, and D. Leporini,
Connectivity effects in the segmental self- and cross-reorientation of unentangled polymer melts.
J.Chem.Phys. 131, 174902 (2009). pdf    
See also November 15, 2009 issue of Virtual Journal of Biological Physics Research.

  •  M. Amirkhani, G. Gorini, D. Leporini
Second harmonic generation studies of intrinsic and extrinsic relaxation dynamics in poly(methy1 methacrylate).
Journal of Non-Crystalline Solids 355, 1707-1712 (2009).  pdf  
 



2008

  •  L.Larini, A.Ottochian, C.De Michele, D.Leporini
Universal scaling between structural relaxation and vibrational dynamics in glass-    forming liquids and polymers.
Nature Physics 4, 42 - 45 (2008).  pdf (printed version)

  •  V. Bercu, M. Martinelli,  C. A. Massa, L. A. Pardi,  E. A. Rössler, D. Leporini,
Anomaly of the rotational nonergodicity parameter of glass formers probed by high field electron paramagnetic resonance.
J.Chem.Phys. 129, 081102 (2008) - Communication.  pdf  

  • V. Bercu, M. Martinelli,  C. A. Massa, L. A. Pardi,  D. Leporini,
Physics of polymers at the high field EPR italian facility: heterogeneities and fast     dynamics.
Appl.Magn.Reson. 33, 365 (2008). pdf  

  • A.Ottochian, C.De Michele, D.Leporini
Non-gaussian effects in the cage dynamics of polymers.
Philosophical Magazine 88, 4057-4062 (2008).  pdf
 
 
2007

  • L. Larini. R.Mannella and D. Leporini,
  • Langevin stabilization of molecular-dynamics simulations of polymers
    by means of quasi-symplectic algorithms,
J.Chem.Phys. 126, 104101 ( 2007 ). pdf  
See also March 15, 2007 issue of Virtual Journal of Biological Physics Research.

  • V. Bercu , M. Martinelli ,C.A.Massa, L.A. Pardi, D, Leporini,
High-Field Electron Paramagnetic Resonance in polymers and glasses: criteria for the optimal choice of the spin probe
          Journal of Optoelectronics and Advanced Materials, 9, 1785-1788 (2007). pdf

  • V. Bercu , M. Martinelli ,C.A.Massa, L.A. Pardi, D, Leporini,
Sensitivity of High-Field Electron Paramagnetic Resonance to the reorientation of   molecular guests in glassy polymers
          Philosophical Magazine 87, 795-798 (2007). pdf

  • L. Larini and D. Leporini,
The free-energy landscape of single-molecule polymer crystals,
Philosophical Magazine 87, 411- 415 (2007). pdf                                   
                                              
  • A. Ottochian, D Leporini,
    Excluded-volume corrections to the single-chain static properties of a polymer
    melt: temperature, density and potential effects,
Journal of Non-Crystalline Solids 353, 3879–3884 (2007). pdf

  • D. Leporini, R.Mauri
    Fluctuations of non-conservative systems,
    J. Stat. Mech. P03002 (2007). pdf                
     
 
2006

  • R.Mauri and D. Leporini,
Violation of the fluctuation-dissipation theorem in confined driven colloids,
Europhys. Lett. 76, 1022-1028 (2006). pdf

  • D Molin, A Barbieri and D Leporini,
Accurate excluded-volume corrections to the single-chain static properties  of a  melt of unentangled polymers,
J. Phys.: Condens. Matter 18, 7543-7552 (2006).  pdf   

                                                        

  • V Bercu ,M Martinelli ,C.A.Massa, LA Pardi, D Leporini,
    Signatures of the fast dynamics in glassy polystyrene by multi-frequency, high-field Electron Paramagnetic Resonance of molecular guests,
    Journal of Non-Crystalline Solids 352, 5029-5034 (2006).  pdf                 

                                           

  • L. Larini, D. Leporini,
Free-energy effects in single-molecule polymer crystals,
Journal of Non-Crystalline Solids 352, 5021-5024 (2006).  pdf     

                                                    

  • L Larini, A Barbieri D Leporini
    Transient and equilibrated single-molecule crystals of polyethylene:
    Molecular-dynamics studies of the lamellar fold length,
    Physica A 364, 183-189 (2006).  pdf
 
2005

  • L Larini, A Barbieri, D Prevosto, P A Rolla and D Leporini
    Equilibrated polyethylene single-molecule crystals: molecular-dynamics simulations and analytic model of the global minimum of the free-energy landscape,
    J. Phys.: Condens. Matter 17, L199-L208 (2005). pdf
  • L Larini, D Leporini
    A manifestation of the Ostwald step rule: Molecular-dynamics simulations and free- energy landscape of the primary nucleation and melting of single-molecule polyethylene in dilute solution,
    J.Chem.Phys. 123, 144907 ( 2005 ). pdf
  • V Bercu ,M Martinelli ,C AMassa, LA Pardi, D Leporini
    Signatures of the fast dynamics in glassy polystyrene: first evidence by high-field Electron Paramagnetic Resonance of molecular guests,
    J.Chem.Phys.123, 174906 ( 2005). pdf
  • V Bercu ,M Martinelli ,C AMassa, LA Pardi, D Leporini
    The onset of the fast dynamics in glassy polystyrene observed by the detrapping of guest molecules: a high-field Electron Paramagnetic Resonance study,
    Europhys. Lett., 72, 590-596 (2005). pdf


2004

  • D. Leporini, G. Jeschke
    Cage Effects On the Librational Motion In Ionomeric Homopolymers and Block- copolymers,
    Philosophical Magazine, 84, 1567-1572 ( 2004). pdf

  •   A.Barbieri, S.Capaccioli, E.Campani, D. Leporini
    Molecular dynamics study of the thermal and the density effects on the local and the large- scale motion of polymer melts: Scaling properties and dielectric relaxation,
    J.Chem.Phys. 120, 437 ( 2004 ). pdf

  • A.Barbieri, G. Gorini, D. Leporini
    Role of the density in the crossover region of o-terphenyl and poly(vinyl acetate),
    Phys.Rev.E 69, 061509 (2004). pdf

  • D.Prevosto, S.Capaccioli, M Lucchesi, D Leporini, P. Rolla
    Pressure and temperature dependence of structural relaxation dynamics in polymers: a thermodynamic interpretation,
    J. Phys.: Condens. Matter 16, 6597-6608 (2004). pdf

  • A Barbieri, D Prevosto, M Lucchesi and D Leporini
    Static and dynamic density effects due to the finite length of polymer chains: a molecular-dynamics investigation,
    J. Phys.: Condens. Matter 16, 6609-6618 (2004).  pdf

  • V.Bercu, M.Martinelli, C.A. Massa, L.A.Pardi, D.Leporini
    A study of the deep structure of the energy landscape of glassy polystyrene: the exponential distribution of the energy barriers revealed by high-field elecron spin resonance spectroscopy.
    J.Phys.: Condens. Matter 16, L479-L488 (2004)  pdf
    Top paper 2004 of JPCM

 

 

2003

  • C.De Michele, D.Leporini
    Molecular-Dynamics Studies of biatomic supercooled liquids: intermittency, stick-slip transition and the breakdown of the Stokes-Einstein laws.”
    Fractals, 11 , 139-147 ( 2003 ).

  • D. Leporini, V. Schädler, U. Wiesner, H.W. Spiess, G. Jeschke
    Electron spin relaxation due to small-angle motion: Theory for the canonical orientations and     application to hierarchic cage dynamics in ionomers”
    J.Chem.Phys. 119 , 11829-11846 ( 2003 ). pdf
          See also 1/12/03 issue of Virtual Journal of Nanoscale Science & Technology.
          See also 1/12/03 issue of Virtual Journal of Biological Physics Research.

 


 


Last Updated: May 26, 2011