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Study of the effects of confinement in the collective excitations of liquid deuterium (Articolo in rivista)

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Study of the effects of confinement in the collective excitations of liquid deuterium (Articolo in rivista) (literal)

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Gonzalez, MA; Mondelli, C; Cabrillo, C; Fernandez-Perea, R; Bermejo, FJ; Albergamo, F; Enciso, E; Carbajo, C; Torralvo, MJ (2007)
Study of the effects of confinement in the collective excitations of liquid deuterium
in The European physical journal. Special topics
(literal)

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Gonzalez, MA; Mondelli, C; Cabrillo, C; Fernandez-Perea, R; Bermejo, FJ; Albergamo, F; Enciso, E; Carbajo, C; Torralvo, MJ (literal)

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CSIC, Inst Ciencia Mat Aragon, Zaragoza, Spain; Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France; CNR, INFM, CFS Soft, Grenoble, France; CSIC, Inst Estructura Mat, E-28006 Madrid, Spain; Univ Basque Country, Dept Elect & Elect, Bilbao, Spain; European Synchrotron Radiat Facil, F-38043 Grenoble, France; Univ Complutense, Fac Ciencias Quim, E-28040 Madrid, Spain (literal)

Titolo

Study of the effects of confinement in the collective excitations of liquid deuterium (literal)

Abstract

The spectrum of collective excitations of liquid deuterium in the bulk and confined within a MCM-41 matrix having pores of an average diameter of 2.4 nm has been studied by means of neutron scattering and molecular dynamics simulations. The main effects of confining liquid D-2 consist in a shift of the characteristic frequencies associated with damped density oscillations to higher energies. A strong decrease in diffusivity is also observed upon confinement. (literal)

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