Probing the spin resonance mode in superconducting K2Cr3As3 single crystals
K2Cr3As3 is a recently discovered novel quasi-1D superconductor TC ≈ 6.1 K. The unconventional superconducting nature has been revealed by both experimental and theoretical investigations. Previously we have carried out neutron diffraction on K2Cr3As3 powder sample and did not observe any signal of static magnetic order. As theoretical calculations have pointed out that K2Cr3As3 is near an in-out co-planar magnetic order and superconductivity is relevant to strong spin fluctuations, we proposal to carried out inelastic neutron scattering experiment to probe the spin resonance mode in the superconducting state. Such an experiment will determine the low energy spin excitation spectrum and give the key information of the nature of superconductivity.
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H. C. Walker; BOEHM Martin; FENG Yu; FORREST Thomas; SCHMALZL Karin; SHEN Yao; Qisi Wang and ZHAO Jun. (2015). Probing the spin resonance mode in superconducting K2Cr3As3 single crystals. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-02-449
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