Magnetic excitations in Co-doped LiFeAs
LiFeAs is a special member of the iron-based superconductors, because there is so far no experimental indication of a structural or magnetic phase transition like in other FeAs parent compounds. Furthermore, the incommensurate magnetic response seems more complex for it arises from at least two different nesting mechanisms. In addition, several theory groups tried to calculate that response but arriving at contradictory results. In order to deepen the clearly insufficient understanding of the magnetic response in LiFeAs we propose to study Co-doped LiFeAs. The incommensurate magnetic excitations as function of Co doping will yield valuable information about the Fermi-surfaces and the question which hole pockets actually are involved in the magnetic fluctuations.
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WASSER Florian; M. Braden; BUECHNER Bernd; STEFFENS Paul and WURMEHL Sabine. (2015). Magnetic excitations in Co-doped LiFeAs. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-02-458
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