Magnetic excitations in Co-doped LiFeAs
LiFeAs is a rather peculiar member of the iron-based superconductors, because it is superconducting with any doping. Furthermore, it displays transversally incommensurate magnetic excitations, which are a fingerprint of electron doping. However, when we added more electrons to this compound by 18% Co-doping we expected the incommensurability to increase, but we observed the opposite, a commensurate response. So far the commensurate magnetic scattering observed in Co-doped LiFeAs remains unexplained.
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WASSER Florian; ABDOUL ROKIB ADEBAYO Tiamiyu; M. Braden; BUECHNER Bernd; QURESHI Navid; RODRIGUEZ FANO Michael; STEFFENS Paul; THOMAS Jeoffrey and WURMEHL Sabine. (2016). Magnetic excitations in Co-doped LiFeAs. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-02-477
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