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The weakest bond: Experimental observation of helium dimer
1993
Journal of Chemical Physics
Preserved Fulltext
Helium dimer ion was observed after electron impact ionization of a supersonic expansion of helium with translational temperature near 1 mK. The dependence of the ion signal on source pressure, distance from the source, and electron kinetic energy was measured. The signal was determined to arise from ionization of neutral helium dimer.
doi:10.1063/1.464079
fatcat:ypaeqyr5ufdcdppkvlhih3dxfy