611 citations · 8.4k across the 150 of their papers we have counts for
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Global Phase Diagram for Magnetism and Lattice Distortion of Fe-pnictide Materials
Yang Qi, Cenke Xu
We study the global phase diagram of magnetic orders and lattice structure in the Fe-pnictide materials at zero temperature within one unified theory, tuned by both doping and pres…
Dynamics and transport of the Z_2 spin liquid: application to kappa-(ET)2Cu2(CN)3
Yang Qi, Cenke Xu, Subir Sachdev
We describe neutron scattering, NMR relaxation, and thermal transport properties of Z_2 spin liquids in two dimensions. Comparison to recent experiments on the spin S=1/2 triangula…
Magnetic impurities on the surface of a topological insulator
Qin Liu, Chao-Xing Liu, Cenke Xu +2
The surface states of a topological insulator are described by an emergent relativistic massless Dirac equation in 2+1 dimensions. In contrast to graphene, there is an odd number o…
Experimental observables near a nematic quantum critical point in the pnictide and cuprate superconductors
Cenke Xu, Yang Qi, Subir Sachdev
The newly discovered high temperature superconductor SmFeAs(O1-xFx) shows a clear nematic transition where the square lattice of Fe ions has a rectangular distortion. Similar nemat…
Ising and Spin orders in Iron-based Superconductors
Cenke Xu, Markus Mueller, Subir Sachdev
Motivated by recent neutron scattering experiments, we study the ordering of spins in the iron-based superconductors La(O_{1-x}F_x)FeAs, assuming them in proximity to a Mott insula…
Destruction of Neel order in the cuprates by electron-doping
Ribhu K. Kaul, Max A. Metlitski, Subir Sachdev +1
Motivated by the evidence in PCCO and NCCO of a magnetic quantum critical point at which Neel order is destroyed, we study the evolution with doping of the T=0 quantum phases of th…