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- Title
Investigation of Superconductivity in Ce-Doped (La,Pr)OBiS 2 Single Crystals.
- Authors
Nagao, Masanori; Hanada, Yuji; Miura, Akira; Maruyama, Yuki; Watauchi, Satoshi; Takano, Yoshihiko; Tanaka, Isao
- Abstract
Single crystals of Ce-doped (La,Pr)OBiS2 superconductors, the multinary rare-earth elements substituted ROBiS2, were successfully grown. The grown crystals typically had a size of 1–2 mm and a plate-like shape with a well-developed c-plane. The c-axis lattice constants of the obtained (La,Ce,Pr)OBiS2 single crystals were approximately 13.6–13.7 Å, and the superconducting transition temperature was 1.23–2.18 K. Valence fluctuations of Ce and Pr were detected through X-ray absorption spectroscopy analysis. In contrast to (Ce,Pr)OBiS2 and (La,Ce)OBiS2, the superconducting transition temperature of (La,Ce,Pr)OBiS2 increased with the increasing concentrations of the tetravalent state at the R-site.
- Subjects
SINGLE crystals; SUPERCONDUCTING transition temperature; SUPERCONDUCTIVITY; VALENCE fluctuations; LATTICE constants
- Publication
Materials (1996-1944), 2022, Vol 15, Issue 9, p2977
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma15092977