ISIS Neutron and Muon Source Data Journal

mSR study of antiferromagnetic fluctuations in the hole-doped superconductor T’-La1.8-xEu0.2SrxCuO4

Abstract: The purpose of this mSR study is to investigate antiferromagnetic (AF) fluctuations in the hole-doped high-Tc cuprate La1.8-xEu0.2SrxCuO4 with the Nd2CuO4-type (so-called T'-type) structure. In the undoped (Ce-free) superconductor T'-Ln2CuO4 (Ln: lanthanide elements), the superconductivity emerges even in the undoped mother compound. Recently, since we have successfully synthesized the electron-doped T'-La1.8Eu0.2CuO4-yFy samples, the hole- and electron-concentration dependence of critical temperature, Tc, for T'-La1.8-xEu0.2SrxCuO4-yFy has been revealed. From our resent mSR measurements of electron-doped T'-La1.8Eu0.2CuO4-yFy, it is found that AF fluctuations disappears at y > 0.10. Therefore, AF fluctuations in hole-doped region would be clarified, leading to the understanding of the relation between the superconductivity and antiferromagnetism in undoped superconductors.

Principal Investigator: Dr Takayuki Kawamata
Local Contact: Dr Isao Watanabe
Experimenter: Professor Tadashi Adachi
Experimenter: Professor Yoji Koike
Experimenter: Professor Masatsune Kato
Experimenter: Mr Toshiki Sunohara
Experimenter: Mr Kota Shiosaka

DOI: 10.5286/ISIS.E.RB1970119

ISIS Experiment Number: RB1970119

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 Takayuki Kawamata et al; (2021): mSR study of antiferromagnetic fluctuations in the hole-doped superconductor T’-La1.8-xEu0.2SrxCuO4, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1970119

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