363 citations · 1.8k across the 24 of their papers we have counts for
11 papers · 1 filter
Symmetry-resolved two-magnon excitations in a strong spin-orbit-coupled bilayer antiferromagnet
Siwen Li, Elizabeth Drueke, Zach Porter +7
We used a combination of polarized Raman spectroscopy and spin wave calculations to study magnetic excitations in the strong spin-orbit-coupled (SOC) bilayer perovskite antiferroma…
Amplitude Mode in Quantum Magnets via Dimensional Crossover
Chengkang Zhou, Zheng Yan, Han-Qing Wu +3
We investigate the amplitude (Higgs) mode associated with longitudinal fluctuations of the order parameter at the continuous spontaneous symmetry breaking phase transition. In quan…
Itinerant Quantum Critical Point with Fermion Pockets and Hot Spots
Zi Hong Liu, Gaopei Pan, Xiao Yan Xu +2
Metallic quantum criticality is among the central theme in the understanding of correlated electronic systems, and converging results between analytical and numerical approaches ar…
Dynamical Generation of Topological Masses in Dirac Fermions
Yuan-Yao He, Xiao Yan Xu, Kai Sun +3
We report discovery of a topological Mott insulator in strongly-correlated Dirac semimetals. Such an interaction-driven topological state has been theoretically proposed but not ye…
Non-Fermi-liquid at (2+1)d ferromagnetic quantum critical point
Xiao Yan Xu, Kai Sun, Yoni Schattner +2
We construct a two-dimensional lattice model of fermions coupled to Ising ferromagnetic critical fluctuations. Using extensive sign-problem-free quantum Monte Carlo simulations, we…
Bulk Fermi surface of charge-neutral excitations in SmB6 or not: a heat-transport study
Y. Xu, S. Cui, J. K. Dong +6
Recently there have been increasingly hot debates on whether a bulk Fermi surface of charge-neutral excitations exists in the topological Kondo insulator SmB6. To unambiguously res…