Campus Units
Physics and Astronomy, Ames Laboratory
Document Type
Article
Publication Version
Published Version
Publication Date
2-11-2011
Journal or Book Title
EPL (Europhysics Letters)
Volume
93
Issue
3
First Page
32001
DOI
10.1209/0295-5075/93/32001
Abstract
Polarized neutron diffraction has been performed on a tetragonal Ba(Fe1-xCox)(2)As-2, x=0.066 single crystal under an applied magnetic field of 6 T directed along the [(1) over bar 10] direction to determine the magnetic structure factors of various Bragg reflections. The maximum entropy reconstruction based on bulk magnetization measurements and polarized neutron diffraction data reveal a small induced magnetic moment residing on the 4d Wyckoff site that is occupied by Fe/Co atoms. No significant magnetization density has been found on the Ba and As atomic positions. The small polarizability of Fe/Co sites leads to flipping ratios very close to 1.00. Our data suggest a non-zero orbital contribution to the Fe/Co magnetic form factor in good agreement with recent theoretical and experimental studies.
Copyright Owner
Europhysics Letters Association
Copyright Date
2011
Language
en
File Format
application/pdf
Recommended Citation
Prokeš, K.; Gukasov, A.; Argyriou, D. N.; Bud’ko, Sergey L.; Canfield, Paul C.; Kreyssig, Andreas; and Goldman, Alan I., "Magnetization distribution in the tetragonal Ba(Fe1-xCox)(2)As-2, x=0.066 probed by polarized neutron diffraction" (2011). Physics and Astronomy Publications. 659.
https://lib.dr.iastate.edu/physastro_pubs/659
Comments
This article is published as Prokeš, K., A. Gukasov, D. N. Argyriou, S. L. Bud'ko, P. C. Canfield, A. Kreyssig, and A. I. Goldman. "Magnetization distribution in the tetragonal Ba (Fe1− xCox) 2As2, x= 0.066 probed by polarized neutron diffraction." EPL (Europhysics Letters) 93, no. 3 (2011): 32001. DOI: 10.1209/0295-5075/93/32001. Posted with permission.