Reentrant quantum criticality in Yb2Pd2Sn

We report the discovery of two consecutive, pressure driven magnetic instabilities in Yb2Pd2Sn. They emerge in a non-Fermi liquid environment at the initial and the final point of a dome-like, single magnetic phase at pressures p(c1) approximate to 1 GPa and p(c2) approximate to 4 GPa. This singular behavior of Yb compounds is supposed to result from mutually competing, pressure modified energy scales, which in case of Yb2Pd2Sn cause a sign change of the pressure dependence of the Kondo temperature T-K and magnetic ordering temperature T-N.