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5 papers · 2 filters
Soft Mode in cubic PbTiO3 by Hyper-Raman Scattering
J. Hlinka, B. Hehlen, A. Kania +1
Hyper-Raman scattering experiments allowed collecting the spectra of the lowest F1u-symmetry mode of PbTiO3 crystal in the paraelectric phase up to 930K as well as down to about 1K…
Acoustic damping and dispersion in vitreous germanium oxide
Guillaume Guimbretière, Benoît Rufflé, René Vacher
New Brillouin scattering measurements of velocity and attenuation of sound in the hypersonic regime are presented. The data are analyzed together with the literature results at son…
Physical properties of thermoelectric zinc antimonide using first-principles calculations
Philippe Jund, Romain Viennois, Xiaoma Tao +2
We report first principles calculations of the structural, electronic, elastic and vibrational properties of the semiconducting orthorhombic ZnSb compound. We study also the intrin…
Spectroscopic study of double-walled carbon nanotubes functionalization for preparation of carbon nanotube / epoxy composites
Vincent Leon, Romain Parret, Robert Almairac +7
A spectroscopic study of the amino functionalization of double-walled carbon nanotube (DWCNT) is performed. Original experimental investigations by near edge X-ray absorption fine…
Micro-Brillouin spectroscopy mapping of the residual density field induced by Vickers indentation in a soda-lime silicate glass
H. Tran, S. Clément, R. Vialla +2
High-resolution Brillouin scattering is used to achieve 3-dimensional maps of the longitudinal acoustic mode frequency shift in soda-lime silicate glasses subject to Vickers indent…