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  Magnetic phase transitions and iron valence in the double perovskite Sr2FeOsO6

Adler, P., Ksenofontov, V., Paul, A. K., Reehuis, M., Yan, B., Jansen, M., et al. (2014). Magnetic phase transitions and iron valence in the double perovskite Sr2FeOsO6. Hyperfine Interactions, 226, 289-297. doi:10.1007/s10751-013-0922-6.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0017-F491-C Version Permalink: http://hdl.handle.net/21.11116/0000-0000-6E9D-5
Genre: Journal Article

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 Creators:
Adler, Peter1, Author              
Ksenofontov, Vadim2, Author
Paul, Avijit Kumar3, Author              
Reehuis, Manfred2, Author
Yan, Binghai4, Author              
Jansen, Martin5, Author              
Felser, Claudia6, Author              
Affiliations:
1Peter Adler, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863435              
2external, ou_persistent22              
3Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404              
4Binghai Yan, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863427              
5Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
6Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: The insulating and antiferromagnetic double perovskite Sr2FeOsO6 has been studied by 57Fe Mössbauer spectroscopy between 5 and 295 K. The iron atoms are essentially in the Fe3 +  high spin (t2g3eg2) and thus the osmium atoms in the Os 5+(t2g3) state. Two magnetic phase transitions, which according to neutron diffraction studies occur below T N = 140 K and T 2 = 67 K, give rise to magnetic hyperfine patterns, which differ considerably in the hyperfine fields and thus, in the corresponding ordered magnetic moments. The evolution of hyperfine field distributions, average values of the hyperfine fields, and magnetic moments with temperature suggests that the magnetic state formed below T N is strongly frustrated. The frustration is released by a magneto-structural transition which below T 2 leads to a different spin sequence along the c-direction of the tetragonal crystal structure.

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Language(s): eng - English
 Dates: 2014-01-012014-01-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1007/s10751-013-0922-6
 Degree: -

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Title: Hyperfine Interactions
Source Genre: Journal
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Publ. Info: Basel, Switzerland [etc.] : J.C. Baltzer [etc.]
Pages: - Volume / Issue: 226 Sequence Number: - Start / End Page: 289 - 297 Identifier: ISSN: 0304-3843
CoNE: /journals/resource/954925511444