Benoit Rufflé
Professor
Physics of the Glassy State Group
Laboratoire Charles Coulomb
Université de Montpellier
Place Eugène Bataillon
34095 Montpellier Cedex 5
France
Phone +33 (0)4 6714 3868
Fax +33 (0)4 6714 3498
benoit.ruffle AT umontpellier.fr

Research Activities
  1. High frequency sound in glasses; vibrations and the boson peak of glasses
  2. Mechanisms responsible for the sound attenuation in glasses: temperature, pressure, aging phenomena
  3. Glasses under pressure; densification, polyamorphism and plasticity of glasses
  4. Glass transition, structural relaxation
  5. Brillouin light scattering, elastic constants of materials
Specialization: Raman and Brillouin light scattering. Inelastic neutron and x-ray scattering spectroscopies.
Advances in spectroscopies

The Brillouin light scattering lab includes
  1. a unique High Resolution Brillouin Spectrometer with the highest frequency and linewidth accuracy worldwide
  2. a Sandercock marketed Fabry-Perot tandem interferometer
  3. a spectrograph for fast Brillouin data acquisition using imaging on a CCD is under construction

Publications

59 - C. Weigel, M. Mebarki, S. Clément, R. Vacher, M. Foret, and B. Rufflé
Pressure-induced densification of vitreous silica: insight from elastic properties
arXiv:1901.02235 (2019)

58 - AC Ferreira, A. Letoublon, S. Paofai, S. Raymond, C. Ecolivet, B. Rufflé, S. Cordier, C. Katan, MI Saidaminov, AA Zhumekenov, OP Bakr, J. Even, and P. Bourges
Elastic softness of hybrid lead halide perovskites
Phys. Rev. Lett. 121 085502 (2018)

57 - C. Weigel, A. Polian, M. Kint, J. Rouquette, J. Haines, M. Foret, R. Vacher, B. Rufflé, and B. Coasne
Poroelastic theory applied to the adsorption-induced deformation of vitreous silica
Poromechanics VI 14 (2017)

56 - A. Huynh, E. Péronne, C. Gingreau, X. Lafosse, A. Lemaitre, B. Perrin, R. Vacher, B. Rufflé, and M. Foret
Temperature dependence of hypersound attenuation in silica films via picosecond acoustics
Phys. Rev. B 96 174206 (2017)

55 - B. Ruta, F. Zontone, Y. Chushkin, G. Baldi, G. Pintori, G. Monaco, B. Rufflé, and W. Kob
Hard X-rays as pump and probe of atomic motion in oxide glasses
Sci. Rep. 7 3962 (2017)

54 - A. Letoublon, S. Paofai, B. Rufflé, P. Bourges, B. Hehlen, T. Michel, C. Ecolivet, O. Durand, S. Cordier, C. Katan, and J. Even
Elastic constants, optical phonons, and molecular relaxations in the high temperature plastic phase of the CH3NH3PbBr3 hybrid perovskite
J. Phys. Chem. Lett. 7 3776 (2016)

53 - C. Weigel, C. Le Losq, R. Vialla, C. Duspas, S. Clément, D. R. Neuville, and B. Rufflé
Elastic moduli of XAlSiO4 aluminosilicate glasses: effects of charge-balancing cations
J. Non-Cryst. Solids 447 267 (2016)

52 - C. Weigel, M. Foret, B. Hehlen, M. Kint, S. Clément, A. Polian, R. Vacher, and B. Rufflé
Polarized Raman spectroscopy of v-SiO2 under rare-gas compression
Phys. Rev. B 93 224303 (2016)

51 - B. Coasne, C. Weigel, A. Polian, M. Kint, J. Rouquette, J. Haines, M. Foret, R. Vacher, and B. Rufflé
Poroelastic theory applied to the adsorption-induced deformation of vitreous silica
J. Phys. Chem. B 118 14519 (2014)

50 - B. Ruta, G. Baldi, Y. Chushkin, B. Rufflé, L. Cristofolini, A. Fontana, M. Zanatta, and F. Nazzani
Revealing the fast atomic motion of network glasses
Nat. Commun. 5 3939 (2014)

49 - A. Lignie, W. Zhou, P. Armand, B. Rufflé, R. Mayet, J. Debray, P. Hermet, B. Ménaert, P. Thomas, and P. Papet
High-temperature elastic moduli of flux-grown a-GeO2 single crystal
Chem. Phys. Chem. 15 118 (2014)

48 - C. Weigel, A. Polian, M. Kint, B. Rufflé, M. Foret, and R. Vacher
Vitreous silica distends in helium gas: acoustic versus static compressibilities
Phys. Rev. Lett. 109 245504 (2012)

47 - G. Guimbretière, B. Rufflé, and R. Vacher
Acoustic damping and dispersion in vitreous germanium oxide
Phys. Rev. B 86 094304 (2012)

46 - H. Tran, S. Clément, R. Vialla, D. Vandembroucq, and B. Rufflé
Micro-Brillouin spectroscopy mapping of the residual density field induced by Vickers indentation in a soda-lime silicate glass
Appl. Phys. Lett. 100 231901 (2012)

45 - R. Vialla, B. Rufflé, G. Guimbretière, and R. Vacher
Eliminating the broadening by finite aperture in Brillouin spectroscopy
Rev. Sci. Instrum. 82 113110 (2011)

44 - B. Rufflé, E. Courtens, and M. Foret
VUV Brillouin scattering from superpolished vitreous silica
Phys. Rev. B 84 132201 (2011)

43 - S. Ayrinhac, B. Rufflé, M. Foret, H.~Tran, S. Clément, R. Vialla, R. Vacher, J.C. Chervin, P. Munsch, and A. Polian
Dynamical origin of the anomalous temperature-hardening of the elastic modulus in vitreous silica
Phys. Rev. B 84 024201 (2011)

42 - E. Courtens, B. Rufflé, M. Foret, R. Vacher, and A. Devos
Comment on "Visualizing coherent phonon propagation in the 100 GHz range: A broadband picosecond acoustic approach"
Appl. Phys. Lett. 98 246101 (2011)

41 - S. Ayrinhac, M. Foret, A. Devos, B. Rufflé, E. Courtens, and R. Vacher
Subterahertz hypersound attenuation in silica glass studied via picosecond acoustics
Phys. Rev. B 83 014204 (2011)

40 - T. Rouxel, H. Ji, J.P. Guin, F. Augereau, and B. Rufflé
Indentation Deformation Mechanism in Glass: Densification versus Shear-Flow
J. Appl. Phys 107 094903 (2010)

39 - B. Rufflé, S. Ayrinhac, E. Courtens, R. Vacher, M. Foret, A. Wischnewski, and U. Buchenau
Scaling the Temperature-dependent Boson Peak of Vitreous Silica with the high-frequency Bulk Modulus derived from Brillouin Scattering Data
Phys. Rev. Lett. 104 067402 (2010)

38 - P. Armand, M. Beaurain, B. Rufflé, B. Menaert and P. Papet
Temperature Dependence of Single-Crystal Elastic Constants of Flux-Grown α-GaPO4
Inorg. Chem. 48 4988 (2009)

37 - P. Armand, M. Beaurain, B. Rufflé, B. Menaert, S. Clément, and P. Papet
Characterizations of Piezoelectric GaPO4 Single Crystals Grown by the Flux Method
J. Cryst. Growth 310 1455 (2008)

36 - A. Devos, M. Foret, S. Ayrinhac, P. Emery, and B. Rufflé
Hypersound damping in vitreous silica measured by picosecond ultrasonics
Phys. Rev. B 77 100201(R) (2008)

35 - B. Rufflé, D. Parshin, E. Courtens, R. Vacher
The Boson peak and its relation with acoustic attenuation in glasses
Phys. Rev. Lett. 100 015501 (2008)

34 - R. Vacher, B. Rufflé, B. Hehlen, G. Guimbretière, G. Simon, and E. Courtens
The vibrational excitations of glasses in the boson peak region: application to borates
Eur. J. Glass Sci. and Technol. B 49 19 (2008)

33 - E. Courtens, M. Foret, B. Rufflé, and R. Vacher
Comment on "High frequency dynamics in metallic glasses"
Phys. Rev. Lett. 98 079603 (2007)

32 - B. Rufflé, G. Guimbretière, E. Courtens, R. Vacher, and G. Monaco
Comment on "Glass-specific behavior in the damping of acoustic-like vibrations" - Reply
Phys. Rev. Lett. 98 079602 (2007)

31 - E. Courtens, M. Foret, B. Rufflé, and R. Vacher
Elasticity and anelasticity of oxide glasses
Eur. J. Glass Sci. and Technol. B 48 9 (2007)

30 - M. Kazan, B. Rufflé, Ch. Zgheib, and P. Masri
Phonon dynamics in AlN lattice contaminated by oxygen
Diam. Relat. Mater. 15 1525 (2006)

29 - R. Vacher, S. Ayrinhac, M. Foret, B. Rufflé, and E. Courtens
Finite size effects in Brillouin scattering from silica glass
Phys. Rev. B 74 012203 (2006)

28 - B. Rufflé, G. Guimbretière, E. Courtens, R. Vacher, and G. Monaco
Glass-specific behavior in the damping of acoustic-like vibrations
Phys. Rev. Lett. 96 045502 (2006)

27 - E. Courtens, B. Rufflé, and René Vacher
Low-Q Brillouin scattering from glasses
J. Neutron Res. 14 361 (2006)

26 - B. Rufflé, G. Guimbretière, E. Courtens, R. Vacher, and G. Monaco
Acoustic damping in Li2O-2B2O3 glass observed by inelastic x-ray and optical Brillouin scattering
J. Non-Cryst. Solids 352 4589 (2006)

25 - B. Rufflé, M. Foret, G. Monaco, E. Courtens and R. Vacher
Observing the high-frequency limit of sound-waves in glasses
"Scientific ESRF Highlights 2006", ESRF Grenoble, 7 (2006)

24 - M. Kazan, B. Rufflé, C. Zgheib, and P. Masri
Oxygen behavior in aluminium nitride
J. Appl. Phys. 98 103529 (2005)

23 - B. Rufflé and S. Longeville
Structural relaxation in supercooled (Na2O-Li2O)-2P2O5 : a neutron spin-echo study
Physica B 350 E1111 (2004)

22 - B. Rufflé and S. Longeville
Structural relaxation in supercooled selenium
"Scientific LLB Highlights 2004", Laboratoire Léon Brillouin, CEA Saclay, 84 (2004)

21 - E. Courtens, M. Foret, B. Hehlen, B. Rufflé, and R. Vacher
The crossover from propagating to strongly scattered acoustic modes of glasses observed in densified silica
J. Phys.: Condens. Matter 15 S1279 (2003)

20 - B. Rufflé, M. Foret, E. Courtens, R. Vacher, and G. Monaco
Observation of the onset of strong scattering on high frequency acoustic phonons in densified silica glass
Phys. Rev. Lett. 90 095502 (2003)

19 - J. Ollivier, B. Rufflé, S. Longeville, P. Bourges, R.E. Lechner, and B. Toudic
Central peak near the incommensurate displacive phase transition of BCPS
Chem. Phys. 292 171 (2003)

18 - B. Rufflé, J. Ollivier, S. Longeville, and R.E. Lechner
Neutron time-of-flight measurement techniques: new possibities of TOF spectroscopy with NEAT at BENSC
Nucl. Inst. and Meth. in Phys. Res. A 449 322 (2000)

17 - J. Wuttke, M. Ohl, M. Goldammer, S. Roth, U. Schneider, P. Lunkenheimer, R. Kahn, B. Rufflé, R.E. Lechner, and M.A. Berg
Propylene carbonate reexamined: Mode-coupling β scaling without factorization
Phys. Rev. E 61 2730 (2000)

16 - C. Nöldeke, B. Asmussen, W. Press, H. Büttner, G. Kearley, R.E. Lechner, and B. Rufflé
Hydrogen dynamics [Me(H2O)6](ClO4)2, with Me=Mg, Mn, Fe, Ni and Zn investigated with quasielastic neutron scattering
J. Chem. Phys. 113 3219 (2000)

15 - H. Andres, R. Basler, H.U. Güdel, G. Aromi, G. Christou, H. Büttner, and B. Rufflé
Inelastic neutron scattering and magnetic susceptibilities of the single molecule magnets [Mn4O3 (Oac)3 (dbm)3](X = Br, Cl, Oac, F): variation of the anisotropy along the series
J. Am. Chem. Soc. 122 12469 (2000)

14 - B. Rufflé
Apport de la diffusion quasiélastique des neutrons à l'étude de la transition liquide-verre
J. Phys. IV 10 131 (2000)

13 - B. Rufflé, J. Ollivier, S. Longeville, and R.E. Lechner
TOF diffraction with NEAT at BENSC
Physica B 276-278 170 (2000)

12 - H. Le Lann, B. Toudic, R. Lefort, J. Etrillard, F. Guillaume, B. Rufflé, J. Ollivier, R.E. Lechner, and T. Breczewski
Coherent neutron analysis of diffuse scattering in an alkane-urea composite
Physica B 276-278 298 (2000)

11 - M. Gay-Duchosal, D.H. Powell, R.E. Lechner and B. Rufflé
QINS studies of water diffusion in Na-montmorillonite
Physica B 276-278 234 (2000)

10 - F. Aliotta, C. Vasi, R.E. Lechner, and B. Rufflé
Evidence of percolative phenomena in a lecithin-based gel
Physica B 276-278 347 (2000)

9 - B. Rufflé, C. Ecolivet, and B. Toudic
Dynamics in the supercooled liquid Na0.5Li0.5PO3: a schematic mode coupling analysis
Europhysics Lett. 45 591 (1999)

8 - F. Aliotta, M.E. fontanella, R.E. Lechner, M. Pieruccini, B. Rufflé, and C. Vasi
Single particle dynamics of water molecules confined in a lecithin-based gel
Phys. Rev. E 60 7131 (1999)

7 - B. Rufflé, S. Beaufils, B. Toudic, C. Ecolivet, A. Le Sauze, and R. Marchand
Mode coupling analysis of the dynamical structure factor in supercooled liquid Na0.5Li0.5PO3
J. of Non-Cryst. Solids 235-237 244 (1998)

6 - B. Rufflé, J. Etrillard, B. Toudic, C. Ecolivet, G. Coddens, J.P. Ambroise, E. Guéguen, and R. Marchand
Comparative analysis of the fast dynamics in the supercooled nonfragile glass- forming liquid Na0.5Li0.5PO3 observed by coherent neutron scattering
Phys. Rev. B 56 11546 (1997)

5 - B. Rufflé, S. Beaufils, J. Etrillard, B. Toudic, C. Ecolivet, G. Coddens, J.P. Ambroise, E. Guéguen, and R. Marchand
Dynamics in a non fragile glass forming liquid
Materials Research Society Symposium Proceedings Series 455 151 (1997)

4 - B. Rufflé, S. Beaufils, J. Etrillard, G. Coddens, B. Toudic, and C. Ecolivet
Fast dynamics of Na0.5Li0.5PO3 observed by coherent neutron scattering
Physica B 234-236 391 (1997)

3 - B. Rufflé, S. Beaufils, J. Gallier, and C. Ecolivet
Low frequency dynamics in Na0.5Li0.5PO3
Non Equilibrium Phenomena in Supercooled Fluids, Glasses and Amorphous Materials, Eds M. Giordano, D. Leporini and M.P. Tosi (World Scientific, 1996) 287

2 - B. Rufflé, S. Beaufils, Y. Delugeard, G. Coddens, J. Etrillard, B. Toudic, M. Bertault, J. Even, J. Gallier, and C. Ecolivet
Experimental study of the liquid-glass transition in an inorganic polymer Na0.5Li0.5PO3
Materials Research Society Symposium Proceedings Series 407 155 (1996)

1 - B. Rufflé, S. Beaufils, and J. Gallier
Low-frequency motions in an alkali phosphate glass studied by 7Li and 31P NMR
Chem. Phys. 195 339 (1995)


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