CeRu 2Ge 2 at high pressure as an analogue of CeRu 2(Si 1- xGe x) 2

The pressure dependence of the magnetic ordering temperatures of CeRu ₂Ge ₂ was investigated up to 11 GPa by electrical resistivity measurements in the temperature range 30 mK<T<300 K. The ferromagnetic ground state is easily suppressed and evidence for a differently ordered magnetic phase is found between 3.5 GPa<P<7.2 GPa. The magnetic to non-magnetic transition occurs at a critical pressure P_c=8.7 GPa. The similarity of the (T, P) diagram to the (T, x) diagram of CeRu ₂(Si _{1- x}Ge _x) ₂ is discussed.