Field-induced low energy excitations in the co-doped superconductor (La,Sr)2CuO4+y
Despite immense research efforts, high temperature superconductivity remains a mystery. We will here study the interplay between magnetism and SC, in the co-doped cuprate La2−xSrxCuO4+delta. We recently found that for x=0.06, there is no static magnetism in zero field, but an applied magnetic field would linearly induce a magnetic signal from incommensurae order. Previous inelastic neutron data shows a 5 meV spin gap in zero field, whereas data in 6 T show a complete absence of a gap. We aim to study the gap region in lower fields in order to elucidate how the gap fills upon application of a field.
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Henrik Jacobsen; BOEHM Martin; Sonja Holm-Dahlin; LEFMANN Kim; NIEDERMAYER Christof; PIOVANO Andrea; TEJSNER Tim Birger; TUTUEANU Ana Elena; UDBY Linda and WELLS Barrett. (2016). Field-induced low energy excitations in the co-doped superconductor (La,Sr)2CuO4+y. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-02-479
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