Ultracold Heteronuclear Fermi-Fermi Molecules

Details Ultracold Heteronuclear Fermi-Fermi Molecules Ultracold Heteronuclear Fermi-Fermi Molecules

2008-10-07

arxiv.org/abs/0810.1306v1

Physics

Condensed Matter

Other Condensed Matter

5 figures

Scientific paper

10.1103/PhysRevLett.102.020405

We report on the first creation of ultracold bosonic heteronuclear molecules of two fermionic species, 6Li and 40K, by a magnetic field sweep across an interspecies s-wave Feshbach resonance. This allows us to associate up to 4x10^4 molecules with high efficiencies of up to 50%. Using direct imaging of the molecules, we measure increased lifetimes of the molecules close to resonance of more than 100 ms in the molecule-atom mixture stored in a harmonic trap.

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