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Quantum critical dynamics in the presence of disorder
Quantum phase transitions are abrupt qualitative changes of a system's groundstate occurring only at exactly zero temperature. Such critical points - although never reachable... -
Fractionalized Spin Excitation in Ce2Zr2O7 Pyrochlore
In recent years, there has been a great interest in quantum spin liquid (QSL). The QSL state is characterized by no conventional order parameter associated with a broken... -
Magnetic excitations in a rare earth Kitaev material
Among the intense research on quantum spin liquid states, the Kitaev model has attracted great attention. Compounds consist of honeycomb layers with strong spin-orbit coupling,...