ISIS Neutron and Muon Source Data Journal

Investigation of superconducting ground state of quasi-one-dimensional superconductor Na2Cr3As3: A MuSR study

Abstract: Cr-based superconductors provide a playground to understand the pairing mechanism in unconventional superconductor as they are strong candidate for multiband triplet pairing state. Recently, Mu et al. reported a new quasi-one-dimensional superconductor Na2Cr3As3 with transition temperature, Tc, of 8.6 K (Phys. Rev. Mat. 2, 034803 (2018)), to date this is the highest reported Tc in a, A2Cr3As3 (A: Rb, Cs, K), Cr-based superconductor. Smaller value of electronic heat capacity jump 0.69 below par for a BCS superconductor (= 1.43), which suggests the possibility of an unconventional nature to the superconductivity. Recently we have published two papers on musr studies of A2Cr3As3 (A=K and Cs, PRB(2015) & JPSJ (2017)). We plan to perform the MuSR study, both transverse field and zero field to understand pairing mechanism in Na2Cr3As3 and compare them to the K and and Cs based compounds.

Principal Investigator: Dr Amitava Bhattacharyya
Local Contact: Dr Adam Berlie
Experimenter: Mr Jun Zhao
Experimenter: Dr Adrian Hillier
Experimenter: Dr Kartik Panda
Experimenter: Dr Devashi Adroja
Experimenter: Dr Yu Feng

DOI: 10.5286/ISIS.E.RB1820141

ISIS Experiment Number: RB1820141

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:
Dr Amitava Bhattacharyya et al; (2018): Investigation of superconducting ground state of quasi-one-dimensional superconductor Na2Cr3As3: A MuSR study, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1820141

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