Quantum criticality and partial order in itinerant magnets
High pressure magnetization measurements on ZrZn2 contradict the expectation of a genuine ferromagnetic quantum critical point previously believed to exist at pc=2.1 GPa. This quantum criticality puzzle is discussed in the light of recent neutron diffraction studies of the non-Fermi liquid puzzle of MnSi. Both studies may identify stable new phases of itinerant-electron magnets.
International Conference on Materials and Mechanisms of Superconductivity