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  Structure and magnetic order of the Heusler compound Co2NbSn

Wolter, A. U. B., Bosse, A., Baabe, D., Maksimov, I., Mienert, D., Klauss, H. H., et al. (2002). Structure and magnetic order of the Heusler compound Co2NbSn. Physical Review B, 66(17): 174428, pp. 174428-174428. doi:10.1103/PhysRevB.66.174428.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-30DC-4 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-0660-D
Genre: Journal Article

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 Creators:
Wolter, A. U. B., Author
Bosse, A., Author
Baabe, D., Author
Maksimov, I., Author
Mienert, D., Author
Klauss, H. H., Author
Litterst, F. J., Author
Niemeier, D., Author
Michalak, R.1, Author              
Geibel, C.2, Author              
Feyerherm, R., Author
Hendrikx, R., Author
Mydosh, J. A.1, Author              
Süllow, S.1, Author              
Affiliations:
1Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404              
2Christoph Geibel, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863465              

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 Abstract: We present a detailed study of the structural and magnetic phase transitions of the Heusler compound Co2NbSn. This material undergoes a structural transition at T-S=235 K from the cubic Heusler Fm3m high-temperature phase into an orthorhombic low-temperature lattice of Pmma symmetry. Further, the system exhibits a magnetic transition at T-C=116 K from para- to ferromagnetism. While on a macro- and mesoscopic scale Co2NbSn appears to be fully Fm3m ordered, from microscopic studies we find that on an atomic scale site disorder is present. We discuss the implications of these findings for the anomalous macroscopic physical properties and domain formation in the ferromagnetic state in Co2NbSn.

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Language(s): eng - English
 Dates: 2002-11-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: eDoc: 18608
ISI: 000179611700072
DOI: 10.1103/PhysRevB.66.174428
 Degree: -

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Title: Physical Review B
  Alternative Title : Phys. Rev. B
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: 66 (17) Sequence Number: 174428 Start / End Page: 174428 - 174428 Identifier: ISSN: 1098-0121