Investigation of superconductivity in Ce-doped (La,Pr)OBiS2 single crystals

Masanori Nagao; Yuji Hanada; Akira Miura; Yuki Maruyama; Satoshi Watauchi; Yoshihiko Takano; Isao Tanaka

doi:10.3390/ma15092977

Investigation of superconductivity in Ce-doped (La,Pr)OBiS2 single crystals

Superconductivity 2022-04-20 v1

Authors: Masanori Nagao , Yuji Hanada , Akira Miura , Yuki Maruyama , Satoshi Watauchi , Yoshihiko Takano , Isao Tanaka

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

Single crystals of Ce-doped (La,Pr)OBiS2 superconductors, 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 A, 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 increasing concentrations of the tetravalent state at the R-site.

Keywords

superconductivity ce-doped single crystals robibs2 x-ray absorption spectroscopy valence fluctuation transition temperature

Cite

@article{arxiv.2204.08904,
  title  = {Investigation of superconductivity in Ce-doped (La,Pr)OBiS2 single crystals},
  author = {Masanori Nagao and Yuji Hanada and Akira Miura and Yuki Maruyama and Satoshi Watauchi and Yoshihiko Takano and Isao Tanaka},
  journal= {arXiv preprint arXiv:2204.08904},
  year   = {2022}
}

Investigation of superconductivity in Ce-doped (La,Pr)OBiS2 single crystals

Abstract

Keywords

Cite

Related papers