Spin-exchange collisions of submerged shell atoms below 1 Kelvin

Details Spin-exchange collisions of submerged shell atoms below 1 Kelvin Spin-exchange collisions of submerged shell atoms below 1 Kelvin

2007-05-04

arxiv.org/abs/0705.0713v1

Physics

Atomic Physics

16 pages, 2 figs

Scientific paper

10.1103/PhysRevLett.99.223201

Angular momentum changing collisions can be suppressed in atoms whose valence electrons are submerged beneath filled shells of higher principle quantum number. To determine whether spin-exchange collisions are suppressed in these "submerged shell" atoms, we measured spin-exchange collisions of six hyperfine states of Mn at temperatures below 1 K. Although the 3d valence electrons in Mn are submerged beneath a filled 4s orbital, we find that the spin exchange rate coefficients are similar to those of Na and H (which are non-submerged shell atoms).

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