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We present the design, implementation and characterization of a dual-speciesmagneto-optical trap (MOT) for fermionic 6Li and 40K atoms with large atomnumbers. The MOT simultaneously contains 5.2x10^9 6Li-atoms and 8.0x10^940K-atoms, which are continuously loaded by a Zeeman slower for 6Li and a2D-MOT for 40K. The atom sources induce capture rates of 1.2x10^9 6Li-atoms/sand 1.4x10^9 40K-atoms/s. Trap losses due to light-induced interspeciescollisions of ~65% were observed and could be minimized to ~10% by using lowmagnetic field gradients and low light powers in the repumping light of bothatomic species. The described system represents the starting point for theproduction of a large-atom number quantum degenerate Fermi-Fermi mixture.

the european physical journal. d, atomic, molecular and optical physics/the european physical journal. d, atomic, molecular, optical and plasma physics

Large atom number dual-species magneto-optical trap for fermionic 6Li and 40K atoms