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          Institute: MPI für Chemische Physik fester Stoffe     Collection: publications 2002     Display Documents



ID: 18608.0, MPI für Chemische Physik fester Stoffe / publications 2002
Structure and magnetic order of the Heusler compound Co2NbSn
Authors:Wolter, A. U. B.; Bosse, A.; Baabe, D.; Maksimov, I.; Mienert, D.; Klauss, H. H.; Litterst, F. J.; Niemeier, D.; Michalak, R.; Geibel, C.; Feyerherm, R.; Hendrikx, R.; Mydosh, J. A.; Süllow, S.
Language:English
Date of Publication (YYYY-MM-DD):2002-11-01
Title of Journal:Physical Review B
Journal Abbrev.:Phys. Rev. B
Volume:66
Issue / Number:17
Start Page:174428
End Page:174428
Sequence Number of Article:174428
Review Status:Peer-review
Audience:Not Specified
Abstract / Description: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.
Comment of the Author/Creator:Date: 2002, NOV 1
External Publication Status:published
Document Type:Article
Communicated by:Ina Wanschura
Affiliations:MPI für chemische Physik fester Stoffe
External Affiliations:Tech Univ Carolo Wilhelmina Braunschweig, Inst Met Phys & Nukl; Festkorperphys, D-38106 Braunschweig, Germany; Tech Univ Carolo Wilhelmina Braunschweig, Inst Met Phys & Nukl Festkorperphys, D-38106 Braunschweig, Germany; Tech Univ Carolo Wilhelmina Braunschweig, Inst Phys & Theoret Chem, D-38106 Braunschweig, Germany; Max Planck Inst Chem Phys Fester Stoffe, D-01187 Dresden, Germany; Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany; Leiden Univ, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands
Identifiers:ISI:000179611700072 [ID No:1]
ISSN:1098-0121 [ID No:2]
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