Quantum Criticality and Global Phase Diagram of Magnetic Heavy Fermions

Understand

Quantum criticality describes the collective fluctuations of matter undergoing a second-order phase transition at zero temperature.

• It is being discussed in a number of strongly correlated electron systems.
• A prototype case occurs in the heavy fermion metals, in which antiferromagnetic quantum critical points have been explicitly observed.
• Here, I address two types of antiferromagnetic quantum critical points.