1.
Phys Rev Lett
; 92(9): 093201, 2004 Mar 05.
Article
in English
| MEDLINE
| ID: mdl-15089463
ABSTRACT
We have measured the circular polarization of light emitted from both atomic H and molecular H2 after bombarding H2 with longitudinally polarized electrons. For both atomic and molecular fluorescence near threshold we observe a circular polarization as great as 10% of the electron polarization. This represents the first direct observation of spin transfer in electron-molecule collisions.