Skip to main content
Article
On magnetic structure of CuFe2Ge2: Constrains from the 57Fe Mössbauer spectroscopy
Ames Laboratory Accepted Manuscripts
  • Sergey L. Bud’ko, Iowa State University and Ames Laboratory
  • Na Hyun Jo, Iowa State University and Ames Laboratory
  • Savannah S. Downing, Iowa State University and Ames Laboratory
  • Paul C. Canfield, Iowa State University and Ames Laboratory
Publication Date
1-15-2018
Department
Ames Laboratory; Physics and Astronomy
OSTI ID+
1409364
Report Number
IS-J 9493
DOI
10.1016/j.jmmm.2017.09.046
Journal Title
Journal of Magnetism and Magnetic Materials
Abstract

57Fe Mössbauer spectroscopy measurements were performed on a powdered CuFe2Ge2 sample that orders antiferromagnetically at ∼175 K. Whereas a paramagnetic doublet was observed above the Néel temperature, a superposition of paramagnetic doublet and magnetic sextet (in approximately 0.5:0.5 ratio) was observed in the magnetically ordered state, suggesting a magnetic structure similar to a double-Q spin density wave with half of the Fe paramagnetic and another half bearing static moment of ∼0.5-1μB. These results call for a re-evaluation of the recent neutron scattering data and band structure calculations, as well as for deeper examination of details of sample preparation techniques.

DOE Contract Number(s)
AC02-07CH11358
Language
en
Publisher
Iowa State University Digital Repository, Ames IA (United States)
Disciplines
Citation Information
Sergey L. Bud’ko, Na Hyun Jo, Savannah S. Downing and Paul C. Canfield. "On magnetic structure of CuFe2Ge2: Constrains from the 57Fe Mössbauer spectroscopy" Vol. 446 (2018) p. 260 - 263
Available at: http://works.bepress.com/paul_canfield/112/