Geometrical Frustration and Spin Liquid Phases in 4f electron based magnets

Satoru Nakatsuji

Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan


    A number of nontrivial phenomena have been found in 4f electron based itinerant magnets, such as heavy fermion, Kondo insulator, unconventional superconductivity, and quantum criticality. Spin liquid is another emergent quantum state, which has recently attracted much attention. In this talk, we discuss such examples, showing our results on the 4f electron based compounds, Pr2Ir2O7 and YbAlB4.

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