178 citations · 1.6k across the 54 of their papers we have counts for
9 papers · 1 filter
Spin excitation anisotropy in optimal-isovalent-doped superconductor BaFe2(As0.7P0.3)2
Ding Hu, Wenliang Zhang, Yuan Wei +8
We use neutron polarization analysis to study spin excitation anisotropy in the optimal-isovalent-doped superconductor BaFe2(As0.7P0.3)2 (Tc = 30 K). Different from optimally hole…
Temperature and polarization dependence of low-energy magnetic fluctuations in nearly-optimal-doped NaFeCoAs
Yu Song, Weiyi Wang, Chenglin Zhang +8
We use unpolarized and polarized neutron scattering to study the temperature and polarization dependence of low-energy magnetic fluctuations in nearly-optimal-doped NaFe…
Local breaking of four-fold rotational symmetry by short-range magnetic order in heavily overdoped Ba(FeCu)As
Weiyi Wang, Yu Song, Ding Hu +6
We investigate Cu-doped Ba(FeCu)As with transport, magnetic susceptibility, and elastic neutron scattering measurements. In the heavily Cu-doped regime where lo…
Two-dimensional Massless Dirac Fermions in Antiferromagnetic AFe2As2 (A = Ba, Sr)
Zhi-Guo Chen, Luyang Wang, Yu Song +7
We report infrared studies of AFeAs (A = Ba, Sr), two representative parent compounds of iron-arsenide superconductors, at magnetic fields (B) up to 17.5 T. Optical tra…
Spin excitation anisotropy in the paramagnetic tetragonal phase of BaFe2 As2
Yu Li, Weiyi Wang, Yu Song +4
We use neutron polarization analysis to study temperature dependence of the spin excitation anisotropy in BaFeAs, which has a tetragonal-to-orthorhombic structural distorti…
Orbital selective neutron spin resonance in underdoped superconducting NaFeCoAs
Weiyi Wang, J. T. Park, Rong Yu +6
We use neutron scattering to study the electron-doped superconducting NaFeCoAs ( K), which has co-existing static antiferromagnetic (AF) order (…
Uniaxial pressure effect on the magnetic ordered moment and transition temperatures in BaFeAs (Co, Ni)
David W. Tam, Yu Song, Haoran Man +22
We use neutron diffraction and muon spin relaxation to study the effect of in-plane uniaxial pressure on the antiferromagnetic (AF) orthorhombic phase in BaFeAs and its Co-…
Spin excitations and the Fermi surface of superconducting FeS
Haoran Man, Jiangang Guo, Rui Zhang +17
High-temperature superconductivity occurs near antiferromagnetic instabilities and nematic state. Debate remains on the origin of nematic order in FeSe and its relation with superc…
Phase diagram and neutron spin resonance of superconducting NaFeCuAs
Guotai Tan, Yu Song, Rui Zhang +8
We use transport and neutron scattering to study the electronic phase diagram and spin excitations of NaFeCuAs single crystals. Similar to Co- and Ni-doped NaFeAs, a bu…