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35 papers · 1 filter
Incommensurate Magnetism in FeAs Strips: Neutron Scattering from CaFeAs
Yusuke Nambu, Liang L. Zhao, Emilia Morosan +7
Magnetism in the orthorhombic metal CaFeAs was examined through neutron diffraction for powder and single crystalline samples. Incommensurate (${\bm q}_{\rm m}\approx (0.37…
Evidence for local moment magnetism in superconducting FeTe0.35Se0.65
Zhijun Xu, Jinsheng Wen, Guangyong Xu +4
The nature of the magnetic correlations in Fe-based superconductors remains a matter of controversy. To address this issue, we use inelastic neutron scattering to characterize the…
Interstitial Iron Controlled Superconductivity in Fe1+xTe0.7Se0.3
E. E. Rodriguez, C. Stock, P-Y Hsieh +3
The superconducting series, Fe(Te,Se), has a complex structural and magnetic phase diagram that is dependent on composition and occupancy of a secondary interstitial Fe site. In th…
Non-collinear spin-density wave antiferromagnetism in FeAs
E. E. Rodriguez, C. Stock, K. Krycka +6
We present the magnetic structure of the itinerant monoarsenide, FeAs, with the B31 structure. Powder neutron diffraction confirms incommensurate modulated magnetism with wavevecto…
Neutron Scattering Studies of spin excitations in hole-doped Ba0.67K0.33Fe2As2 superconductor
Chenglin Zhang, Meng Wang, Huiqian Luo +14
We report inelastic neutron scattering experiments on single crystals of superconducting Ba0.67K0.33Fe2As2 (Tc = 38 K). In addition to confirming the resonance previously found in…
Single Crystal Study of Competing Rhombohedral and Monoclinic Order in Lead Zirconate Titanate
D. Phelan, X. Long, Y. Xie +5
Neutron diffraction data obtained on single crystals of PbZr1-xTixO3 with x = 0.325 and x = 0.460, which lie on the pseudorhombohedral side of the morphotropic phase boundary, sugg…