Liquid Rb micrometric droplets confined in paraffin wax: an X-ray absorption spectroscopy study.
We have performed high-quality X-ray absorption measurements on crystalline (c-Rb) and liquid (l-Rb) Rubidium in the range from 15 K to 320 K. Performing a consistent analysis that takes into account the contribution of the medium range structure, we observe that the l-Rb spectrum is compatible with pair correlation function g(r) previously determined by neutron diffraction experiments. Due to the micrometric size of the liquid droplets we were able to observe a slight undercooling down to 290 K. We were also able to study the details of the very strong multielectron excitations channels in terms of resonances, edges and shake-off features at proper theoretical energy values.
De Panfilis
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S
I.N.F.M. and Dip. di Matematica e Fisica, Università di Camerino, Italy. depa@unixas.unicam.it
Di Cicco
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A
Filipponi
A
A
Comez
L
L
Borowski
M
M