Ultracold Mixture: Molecule Production in K-40 and Rb-87

We report on a new apparatus for making ultracold heteronuclear molecules. Large numbers of fermionic $^{40}$K (1*10$^{8 }$atoms) and bosonic $^{87}$Rb (5*10$^{8 }$atoms) have been collected simultaneously. The mixed sample can then be loaded into a magnetic trap and physically moved to a lower pressure, science region. A novel feature of this transfer is the navigation around an obstruction made of pyrex. The purpose of this obstruction is to block line-of-sight atoms from migrating to the low pressure section but still allow for optical probing along the transfer direction. A QUIC Ioffe-Pritchard style magnetic trap is used to hold the mixture during (sympathetic) cooling. Progress towards quantum degeneracy in the mixed samples and recent work will also be reported.