Magnetic form factor of iron in SrFe2As2

TitleMagnetic form factor of iron in SrFe2As2
Publication TypeJournal Article
Year of Publication2010
AuthorsLee Y, Vaknin D, Li HF, Tian W, Zarestky JL, Ni N, Bud'ko SL, Canfield PC, McQueeney RJ, Harmon BN
Journal TitlePhysical Review B
Volume81
Pages060406
Date Published02/01
ISBN Number1098-0121
Accession NumberISI:000274998100009
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.

URL<Go to ISI>://000274998100009
DOI10.1103/Physrevb.81.060406