4 papers · 1 filter
Spin Gap and Resonance at the Nesting Wavevector in Superconducting FeSe0.4Te0.6
Yiming Qiu, Wei Bao, Yang Zhao +9
Neutron scattering is used to probe magnetic excitations in FeSe_{0.4}Te_{0.6} (T_c=14 K). Low energy spin fluctuations are found with a characteristic wave vector th…
Coexistence of the spin-density-wave and superconductivity in the (Ba,K)Fe2As2
H. Chen, Y. Ren, Y. Qiu +8
The relation between the spin-density-wave (SDW) and superconducting order is a central topic in current research on the FeAs-based high Tc superconductors. Conflicting results exi…
Structure and Magnetic Order in the NdFeAs(O,F) Superconductor System
Y. Qiu, Wei Bao, Q. Huang +9
The transition temperature Tc~26 K of the recently discovered superconductor LaFeAs(O,F) has been demonstrated to be extremely sensitive to the lanthanide ion, reaching 55 K for th…
Magnetic order in BaFe2As2, the parent compound of the FeAs based superconductors in a new structural family
Q. Huang, Y. Qiu, Wei Bao +6
In addition to higher Tc compared with the ubiquitous cuprates for a material composed of a single electronically active layer, the newly discovered LnFeAsO superconductors offer a…