title: Spin-exchange collisions of submerged shell atoms below 1 Kelvin.
abstract: 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 collisional rates for six hyperfine states of Mn at T < 1 K. Although the 3d valence electrons in Mn are submerged beneath a filled 4s orbital, we find spin-exchange rate coefficients similar to Na and H (both nonsubmerged shell atoms).
authors.affiliation: Departments of Physics and Applied Physics, Yale University, New Haven, Connecticut 06520, USA.
authors.forename: J G E
authors.initials: JG
authors.lastname: Harris
authors.forename: S V
authors.initials: SV
authors.lastname: Nguyen
authors.forename: S C
authors.initials: SC
authors.lastname: Doret
authors.forename: W
authors.initials: W
authors.lastname: Ketterle
authors.forename: J M
authors.initials: JM
authors.lastname: Doyle