Structural properties and superconductivity of SrFe2As2-xPx and CaFe2As2-yPy

H. L. Shi; H. X. Yang; H. F. Tian; J. B. Lu; Z. W. Wang; Y. B. Qin; Y. J. Song; J. Q. Li*

doi:10.1088/0953-8984/22/12/125702

Structural properties and superconductivity of SrFe2As2-xPx and CaFe2As2-yPy

Superconductivity 2015-05-14 v1 Strongly Correlated Electrons

Authors: H. L. Shi , H. X. Yang , H. F. Tian , J. B. Lu , Z. W. Wang , Y. B. Qin , Y. J. Song , J. Q. Li*

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

The SrFe2As2-xPx and CaFe2As2-yPy materials were prepared by a solid state reaction method. X-ray diffraction measurements indicate the single-phase samples can be successfully obtained for SrFe2As2-xPx and CaFe2As2-yPy samples. Clear contraction of the lattice parameters are clearly determined due to the relatively smaller P ions substation for As. The SDW instability associated with tetragonal to orthorhombic phase transition is suppressed visibly in both systems following with the increase of P contents. The highest superconducting transitions are respectively observed at about 27 K in SrFe2As1.3P0.7 and at about 13 K in CaFe2As1.7P0.3.

Keywords

superconductivity iron-based superconductors SrFe2As2 CaFe2As2 phosphorus substitution spin density wave lattice parameters

Cite

@article{arxiv.0909.4600,
  title  = {Structural properties and superconductivity of SrFe2As2-xPx and CaFe2As2-yPy},
  author = {H. L. Shi and H. X. Yang and H. F. Tian and J. B. Lu and Z. W. Wang and Y. B. Qin and Y. J. Song and J. Q. Li*},
  journal= {arXiv preprint arXiv:0909.4600},
  year   = {2015}
}

Comments

11 pages, 5 figures, 2 tables

Structural properties and superconductivity of SrFe2As2-xPx and CaFe2As2-yPy

Abstract

Keywords

Cite

Comments

Related papers