Magnetic field dependent interactions in an ultracold Li-Yb($^3$P$_2$)   mixture
  Magnetic Feshbach resonances have allowed great success in the production of ultracold diatomic molecules from bi-alkali mixtures, but have so far eluded observation in mixtures of alkali and alkaline-earth-like atoms. Inelastic collisional properties of ultracold atomic systems exhibit resonant behavior in the vicinity of such resonances, providing a detection signature. We study magnetic field dependent inelastic effects via atom loss spectroscopy in an ultracold heteronuclear mixture of alkali $^6$Li in the ground state and alkaline-earth-like $^{174}$Yb in an excited electronic metastable state ($^3$P$_2$, m$_J$ = -1). We observe a variation of the interspecies inelastic two-body rate coefficient by nearly one order of magnitude over a 100-520G magnetic field range. By comparing to ab-initio calculations we link our observations to interspecies Feshbach resonances arising from anisotropic interactions in this novel collisional system. 
William Dowd, Richard J. Roy, Rajendra K. Shrestha, Alexander Petrov,   Constantinos Makrides, Svetlana Kotochigova and Subh...
cond-mat.quant-gas physics.atom-ph