PT Journal
AU Ancilotto, F
   Barranco, M
   Navarro, J
   Pi, M
TI Cavitation of electron bubbles in liquid parahydrogen
SO Molecular Physics
JI Mol. Phys.
PY 2011
BP 2757
EP 2762
VL 109
IS 23-24
DI 10.1080/00268976.2011.602650
LA English
DE liquid parahydrogen; electron bubbles; density functional theory; capillary approximation
AB Within a finite-temperature density functional approach, we have investigated the structure of electron bubbles in liquid parahydrogen below the saturated vapour pressure, determining the critical pressure at which electron bubbles explode as a function of temperature. The electron-parahydrogen interaction has been modelled by a Hartree-type local potential fitted to the experimental value of the conduction band-edge for a delocalized electron in pH(2). We have found that the pressure for bubble explosion is, in absolute value, about a factor of two smaller than that of the homogeneous cavitation pressure in the liquid. Comparison with the results obtained within the capillary model shows the limitations of this approximation, especially as temperature increases.
ER