Evidence for an energy level substructure of molecular states in helium droplets.
The pure tunneling inversion transition of ammonia embedded in (4)He droplets was investigated in the microwave frequency range. We observed a spectrum that consists of a sharp peak, only 15 MHz wide, on top of a broad feature. The peculiar line shape could be simulated with an empirical model and is a clear experimental evidence for an energy level substructure of molecular states in doped helium droplets.
Lehnig
Rudolf
R
Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada.
Blinov
Nicholas V
NV
Jäger
Wolfgang
W