Growth and properties of single crystalline F-doped and Co-doped NdFeAsO.

We report the results of single crystal growth of F-doped and Co-doped, NdFeAsO.~ A high pressure furnace using a 19mm truncation edge length cubic anvil capable of reaching 3.3 GPa and 2000 C was used to grow crystals of doped NdFeAsO from on- and off-stoichiometry melts.~ Single crystals with linear dimensions of $>$1mm can be grown using this technique. Anisotropic transport, thermodynamic and spectroscopic properties [1-3] have been measured and the results of these measurements as well as crystal size and doping level will be correlated to growth profile and initial stoichiometry. [1] T. Kondo et al., Phys. Rev. Lett. \textbf{101}, 147003 (2008), [2] C. Liu, et al., arXiv:0806.2147, [3] C. Martin et al., arXiv: 0807.0776.