Observation of Dipole-Bound States of Negative Ions
- 18 June 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 52 (25), 2221-2224
- https://doi.org/10.1103/physrevlett.52.2221
Abstract
High-resolution threshold photodetachment of C-CH has resulted in the observation of ∼50 narrow resonances (some <20 MHz full width at half maximum). These resonances are due to autodetachment from a diffuse negative-ion complex consisting of an electron weakly bound (∼5 ) by the dipolar electric field of the neutral. Electric fields of < 70 V/cm are adequate to detach the electron from the lower (bound) levels where autodetachment is not possible. Such states should exist for all neutrals with dipole moments greater than about 2 D.
Keywords
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