Growth of parent and electron doped NaFeAs

It has been found hole doping on Fe sites in BaFe$_{2}$As$_{2}$ does not induce superconductivity with Cr and Mn as dopants, but doping on Ba sites with K induces superconductivity as high as 38K. We have investigated hole doping with Titanium to be compared with other hole doping compounds. Single crystals of Titanium doped BaFe$_{2}$As$_{2}$ were grown by flux method. Transport and susceptibility measurements were done showing doping Titanium suppresses the Neel temperature but no superconductivity was found up to 4{\%} doping. Susceptibility measurements also showed spin glass behavior. Phase diagrams of temperature vs doping concentration have been constructed from transport and Susceptibility measurements.