New materials for spintronics: CuCr2Se4.

We have synthesized a new structural variation of CuCr<sub>2</sub>Se<sub>4</sub> by chemical vapor transport technique (CVT) with SeCl<sub>4</sub>. Both bulk and surface magnetic measurements are in agreement in measuring an enhancement in the saturation moment as the doping level is increased. On the other hand, a decrease in T<sub>c</sub> is observed for increasing CI doping.