Zhiqiang Mao

TL;DR: In this paper, the spontaneous appearance of an internal magnetic field below the transition temperature of the superconductor Sr2RuO4 was observed, which indicated that the superconducting state in this material is characterized by the breaking of time-reversal symmetry.

TL;DR: In this paper, the authors used 17O NMR to determine the spin susceptibility of the layered oxide superconductor Sr2RuO4 and showed no change in spin susceptibility on passing through the superconducting transition temperature.

TL;DR: In this article, the evolution of superconductivity and the phase diagram of the ternary Fe-based compounds were studied and a superconducting phase was discovered in the $0.3lxl1.0$ range, which exhibits an incommensurate antiferromagnetic order.

TL;DR: In contrast with the predicted commensurate spin-density-wave order at the nesting wave vector (pi, 0), a completely different magnetic order with a composition tunable propagation vector (deltapi, deltapi) was determined for the parent compound Fe 1+y}Te in this powder and single-crystal neutron diffraction study as discussed by the authors.

TL;DR: In this paper, the authors reported neutron scattering studies that reveal a unique complex incommensurate antiferromagnetic order in the parent compound alpha-FeTe when the long-range magnetic order is suppressed by the isovalent substitution of Te with Se, short-range correlations survive in the superconducting phase.