The magnetic form factor of iron in SrFe2As2

Y. Lee; David Vaknin; Haifeng Li; Wei Tian; Jerel L. Zarestky; N. Ni; S. L. Bud'ko; P. C. Canfield; R. J. McQueeney; B. N. Harmon

doi:10.1103/PhysRevB.81.060406

The magnetic form factor of iron in SrFe2As2

Superconductivity 2015-05-18 v1

Authors: Y. Lee , David Vaknin , Haifeng Li , Wei Tian , Jerel L. Zarestky , N. Ni , S. L. Bud'ko , P. C. Canfield , R. J. McQueeney , B. N. Harmon

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

The iron magnetic form factor in SrFe2As2 has been determined by neutron diffraction and by density functional theory (DFT). As noted previously, the magnitude of the calculated moment using DFT is sensitive to the Fe-As distance. However, the shape of the calculated form factor is practically insensitive to the Fe-As distance, and further we show that the form factor closely resembles that of bcc iron, and agrees well with experiment. The spin density exhibits some anisotropy due to geometry and As hybridization.

Keywords

magnetic form factor SrFe2As2 neutron diffraction density functional theory spin density iron pnictides

Cite

@article{arxiv.1001.3658,
  title  = {The magnetic form factor of iron in SrFe2As2},
  author = {Y. Lee and David Vaknin and Haifeng Li and Wei Tian and Jerel L. Zarestky and N. Ni and S. L. Bud'ko and P. C. Canfield and R. J. McQueeney and B. N. Harmon},
  journal= {arXiv preprint arXiv:1001.3658},
  year   = {2015}
}

Comments

4 pages, 4 figures, accepted by PRB Rapid Communication

The magnetic form factor of iron in SrFe2As2

Abstract

Keywords

Cite

Comments

Related papers