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Negative vibrational shift of nitrogen diluted in xenon at the fluid-solid transition

By ME Marianne Eline Kooi, JPJ Michels and JA Schouten


It is known from experimental evidence that the Raman shift of nitrogen and nitrogen in argon, measured as a function of the pressure at ambient temperature, reveals a positive jump at the transition from the liquid to the solid phase. Intuitively, this increase is sometimes attributed to the increase of density, but recently it has been shown that the change in order at the transition also plays a role. The present study deals with the behavior of nitrogen diluted in xenon. In this system, even a negative jump is found experimentally. Computer simulations on a model system for the N2-Xe mixture make clear that in this case the effect of the change in order is opposite. © 1999 American Institute of Physics

Publisher: 'American Chemical Society (ACS)'
Year: 1999
DOI identifier: 10.1063/1.477896
OAI identifier:
Provided by: Repository TU/e
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