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Detection of Antiferromagnetic Ordering in Heavily DopedLaFeAsO1−xHxPnictide Superconductors Using Nuclear-Magnetic-Resonance Techniques
2013
Physical Review Letters
We studied double superconducting (SC) domes in LaFeAsO1-xHx by using 75As- and 1H-nuclear magnetic resonance techniques, and unexpectedly discovered that a new antiferromagnetic (AF) phase follows the double SC domes on further H doping, forming a symmetric alignment of AF and SC phases in the electronic phase diagram. We demonstrated that the new AF ordering originates from the nesting between electron pockets, unlike the nesting between electron and hole pockets as seen in the majority of
doi:10.1103/physrevlett.111.097002
pmid:24033063
fatcat:ktyzzv7zmbenxgpsbgf2ut4e2m