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Quantum rattling of molecular hydrogen in clathrate hydrate nanocavities

Autor: Ulivi, L., Celli, M., Giannasi, A., Ramirez-Cuesta, A. J., Bull, D. J., Zoppi, M.

We have performed high-resolution inelastic neutron scattering studies on three samples of hydrogenated tetrahydrofuran-water clathrates, containing either H2 at different para/ortho concentrtion, or HD. By a refined analysis of the data, we are able

Externí odkaz: http://arxiv.org/abs/0706.3275

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Quantum hydrogen vibrational dynamics in LiH: new neutron measurements and variational Monte Carlo simulations

Autor: Boronat, J., Cazorla, C., Colognesi, D., Zoppi, M.

Hydrogen single-particle dynamics in solid LiH at T=20 K has been studied through the incoherent inelastic neutron scattering technique. A careful analysis of the scattering data has allowed for the determination of a reliable hydrogen-projected dens

Externí odkaz: http://arxiv.org/abs/cond-mat/0403322

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Microscopic structure of liquid hydrogen: a neutron diffraction experiment

Autor: Celli, M., Bafile, U., Cuello, G. J., Formisano, F., Guarini, E., Magli, R., Neumann, M., Zoppi, M.

We have measured the center-of-mass structure factor S(k) of liquid para-hydrogen by neutron diffraction, using the D4C diffractometer at the Institute Laue Langevin, Grenoble, France. The present determination is at variance with previous results ob

Externí odkaz: http://arxiv.org/abs/cond-mat/0209239

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