On magnetic structure of CuFe2Ge2: Constrains from the 57Fe Mössbauer spectroscopy
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. Lastly, 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.
- Authors:
-
- Ames Lab. and Iowa State Univ., Ames, IA (United States)
- Publication Date:
- Research Org.:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1409364
- Alternate Identifier(s):
- OSTI ID: 1495527
- Report Number(s):
- IS-J-9493
Journal ID: ISSN 0304-8853; PII: S0304885317319315; TRN: US1703195
- Grant/Contract Number:
- AC02-07CH11358
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Journal of Magnetism and Magnetic Materials
- Additional Journal Information:
- Journal Volume: 446; Journal Issue: C; Journal ID: ISSN 0304-8853
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; Mössbauer spectroscopy; Magnetic order; Hyperfine parameters
Citation Formats
Bud’ko, Sergey L., Jo, Na Hyun, Downing, Savannah S., and Canfield, Paul C. On magnetic structure of CuFe2Ge2: Constrains from the 57Fe Mössbauer spectroscopy. United States: N. p., 2017.
Web. doi:10.1016/j.jmmm.2017.09.046.
Bud’ko, Sergey L., Jo, Na Hyun, Downing, Savannah S., & Canfield, Paul C. On magnetic structure of CuFe2Ge2: Constrains from the 57Fe Mössbauer spectroscopy. United States. https://doi.org/10.1016/j.jmmm.2017.09.046
Bud’ko, Sergey L., Jo, Na Hyun, Downing, Savannah S., and Canfield, Paul C. 2017.
"On magnetic structure of CuFe2Ge2: Constrains from the 57Fe Mössbauer spectroscopy". United States. https://doi.org/10.1016/j.jmmm.2017.09.046. https://www.osti.gov/servlets/purl/1409364.
@article{osti_1409364,
title = {On magnetic structure of CuFe2Ge2: Constrains from the 57Fe Mössbauer spectroscopy},
author = {Bud’ko, Sergey L. and Jo, Na Hyun and Downing, Savannah S. and Canfield, Paul C.},
abstractNote = {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. Lastly, 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.},
doi = {10.1016/j.jmmm.2017.09.046},
url = {https://www.osti.gov/biblio/1409364},
journal = {Journal of Magnetism and Magnetic Materials},
issn = {0304-8853},
number = C,
volume = 446,
place = {United States},
year = {Wed Sep 20 00:00:00 EDT 2017},
month = {Wed Sep 20 00:00:00 EDT 2017}
}
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