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High-Frequency Subsurface and Bulk Dynamics of Liquid Indium

Reichert, H.
Bencivenga, F.
Krisch, M.
Sette, F.
Dosch, H.
Published in Physical Review Letters. 2007, vol. 98, p. 096104
Abstract We have performed bulk and surface-sensitive inelastic x-ray scattering experiments on liquid indium with 3 meV energy resolution. The experimental data are well reproduced within a generalized hydrodynamic model including structural and microscopic relaxation processes. We find a longitudinal viscosity of 22 mPa s in the near-surface region compared to 7.4 mPa s in the bulk. The origin of the increase is associated with a slowing down of the collective dynamics in a subsurface region of 4.6 nm.
Keywords Liquid indiumDynamicsInelastic x-ray scatteringSurface-sensitive
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REICHERT, H. et al. High-Frequency Subsurface and Bulk Dynamics of Liquid Indium. In: Physical Review Letters, 2007, vol. 98, p. 096104.

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Deposited on : 2015-03-18

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