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  Long-Range Antiferromagnetic Order on Spin Ladders SrFe2S2O and SrFe2Se2O As Probed by Neutron Diffraction and Mossbauer Spectroscopy

Guo, H., Fernández-Díaz, M.-T., Komarek, A. C., Huh, S., Adler, P., & Valldor, M. (2017). Long-Range Antiferromagnetic Order on Spin Ladders SrFe2S2O and SrFe2Se2O As Probed by Neutron Diffraction and Mossbauer Spectroscopy. European Journal of Inorganic Chemistry, (32), 3829-3833. doi:10.1002/ejic.201700684.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-F597-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-5B04-5
Genre: Journal Article

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 Creators:
Guo, Hanjie1, Author              
Fernández-Díaz, Maria-Teresa2, Author
Komarek, Alexander Christoph3, Author              
Huh, Sungjoon2, Author
Adler, Peter4, Author              
Valldor, Martin5, Author              
Affiliations:
1Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
2External Organizations, ou_persistent22              
3Alexander Komarek, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863446              
4Peter Adler, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863435              
5Martin Valldor, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863454              

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 Abstract: Powder neutron diffraction data on spin ladder compounds SrFe(2)Ch(2)O (Ch = S, Se) indicate that their magnetic ground states feature long-range antiferromagnetic spin ordering with k = [0,0,0]. The superexchange interaction is antiferromagnetic across each rung via oxygen but ferromagnetic along the ladders via Ch. At 10 K, the ordered spins point towards the center of the ladders but are faintly canted away from a collinear state. The sizes of the ordered moments are 3.3 and 3.5 mu(B) Fe-1 for SrFe2S2O and SrFe2Se2O, respectively. The polar, heteroleptic, tetrahedral FeCh(3)O coordination suggests an angle of 8 degrees between the local structure polarity and the magnetic moment spin orientation. Mossbauer spectroscopic data confirm the magnetic ordering scenario and indicate that the local Fe-O bond rules the electric field gradient at the Fe-site.

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Language(s): eng - English
 Dates: 2017-08-312017-08-31
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000408862500009
DOI: 10.1002/ejic.201700684
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Title: European Journal of Inorganic Chemistry
  Abbreviation : Eur. J. Inorg. Chem.
Source Genre: Journal
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Publ. Info: Weinheim, Germany : Wiley-VCH
Pages: - Volume / Issue: (32) Sequence Number: - Start / End Page: 3829 - 3833 Identifier: ISSN: 1434-1948
CoNE: /journals/resource/954926953810_1