Antiferromagnetic ordering in the absence of structural distortion in Ba (Fe1-x Mnx )2 As2

Kim, M.G., Kreyssig, A., Thaler, A., Pratt, D.K., Tian, W., Zarestky, J.L., Green, M.A., Bud'Ko, S.L., Canfield, P.C., McQueeney, R.J., and others. (2010) Antiferromagnetic ordering in the absence of structural distortion in Ba (Fe1-x Mnx )2 As2. Physical Review B - Condensed Matter and Materials Physics, 82 (22). 0-0. ISSN 1098-0121. (doi:10.1103/PhysRevB.82.220503) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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http://dx.doi.org/10.1103/PhysRevB.82.220503

Abstract

Neutron and x-ray diffraction studies of Ba (Fe1-x Mn x)2 As2 for low doping concentrations (x�0.176) reveal that at a critical concentration, 0.102<x<0.118, the tetragonal-to- orthorhombic transition abruptly disappears whereas magnetic ordering with a propagation vector of (1 2 1 2 1) persists. Among all of the iron arsenides this observation is unique to Mn doping, and unexpected because all models for "stripelike" antiferromagnetic order anticipate an attendant orthorhombic distortion due to magnetoelastic effects. We discuss these observations and their consequences in terms of previous studies of Ba (Fe 1-x T Mx) 2 As2 compounds (TM=transitionmetal), and models for magnetic ordering in the iron arsenide compounds. © 2010 The American Physical Society.

Item Type: Article
DOI/Identification number: 10.1103/PhysRevB.82.220503
Additional information: Unmapped bibliographic data: C7 - 220503 [EPrints field already has value set] LA - English [Field not mapped to EPrints] J2 - Phys. Rev. B Condens. Matter Mater. Phys. [Field not mapped to EPrints] AD - Ames Laboratory, U.S. DOE and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, United States [Field not mapped to EPrints] AD - NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, United States [Field not mapped to EPrints] AD - Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, United States [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Q Science > QD Chemistry > QD478 Solid State Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Giles Tarver
Date Deposited: 15 Oct 2015 11:15 UTC
Last Modified: 29 May 2019 16:09 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/50995 (The current URI for this page, for reference purposes)
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