Physics – Condensed Matter – Materials Science
Scientific paper
2006-10-18
Physical Review B 73 (29/03/2006) 094206
Physics
Condensed Matter
Materials Science
6 pages
Scientific paper
10.1103/PhysRevB.73.094206
We present a comparative study of the excitations in bulk and liquid D2 confined within the pores of MCM-41. The material (Mobile Crystalline Material-41) is a silicate obtained by means of a template that yields a partially crystalline structure composed by arrays of nonintersecting hexagonal channels of controlled width having walls made of amorphous SiO2. Its porosity was characterized by means of adsorption isotherms and found to be composed by a regular array of pores having a narrow distribution of sizes with a most probable value of 2.45 nm. The assessment of the precise location of the sample within the pores is carried out by means of pressure isotherms. The study was conducted at two pressures which correspond to pore fillings above the capillary condensation regime. Within the range of wave vectors where collective excitations can be followed up (0.3
Albergamo Francesco
Bermejo Francisco J.
Cabrillo Carlos
Carbajo Carlos
Enciso Eduardo
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