DeSalvo, B.J.Yan, M.Mickelson, P.G.Martinez de Escobar, Y.N.Killian, T.C.2012-11-262012-11-262010-07-13DeSalvo, B.J., Yan, M., Mickelson, P.G., et al.. "Degenerate Fermi Gas of 87Sr." <i>Physical Review Letters,</i> 105, (2010) 030402. http://dx.doi.org/10.1103/PhysRevLett.105.030402.https://hdl.handle.net/1911/68390We report quantum degeneracy in a gas of ultracold fermionic Sr87 atoms. By evaporatively cooling a mixture of spin states in an optical dipole trap for 10.5 s, we obtain samples well into the degenerate regime with T/TF=0.26+0.05−0.06. The main signature of degeneracy is a change in the momentum distribution as measured by time-of-flight imaging, and we also observe a decrease in evaporation efficiency below T/TF∼0.5.engJournal articlehttp://dx.doi.org/10.1103/PhysRevLett.105.030402