ISIS Neutron and Muon Source Data Journal

Magnetic excitations in the new superconductor A2Cr3As3 (A=K, Cs and Rb)

Abstract: The recently discovered quasi-one-dimensional (Q1D) superconductor A2Cr3As3 (A=K, Rb, and Cs with TC ≈ 6.1 K, 4.8 K, and 2.2 K, respectively) has intrigued intensive studies. 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. 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 propose to carry out inelastic neutron scattering to probe the low energy magnetic excitations and to identify if there is a spin resonance mode in A2Cr3As3. The proposed neutron study will provide crucial information of its electron pairing mechanism.

Principal Investigator: Mr Jun Zhao
Experimenter: Professor Qisi Wang
Experimenter: Dr Yu Feng
Experimenter: Mr Shoudong Shen
Local Contact: Dr David Voneshen
Experimenter: Dr Devashi Adroja

DOI: 10.5286/ISIS.E.RB1520111

ISIS Experiment Number: RB1520111

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Mr Jun Zhao et al; (2015): Magnetic excitations in the new superconductor A2Cr3As3 (A=K, Cs and Rb), STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1520111

Data is released under the CC-BY-4.0 license.