Literature DB >> 25809406

Room-Temperature Ba(Fe1-x Cox)2 As2 is not Tetragonal: Direct Observation of Magnetoelastic Interactions in Pnictide Superconductors.

Claudia Cantoni1, Michael A McGuire, Bayrammurad Saparov, Andrew F May, Trevor Keiber, Frank Bridges, Athena S Sefat, Brian C Sales.   

Abstract

Lattice distortions corresponding to Ba displacements with respect to the FeAs sublattice are revealed to break the room-temperature tetragonal symmetry in Ba(Fe1-x Cox)2 As2. The displacements yield twin domains of the size of ≈10 nm. The domain size correlates with the magnitude of the local Fe magnetic moment and its non-monotonic dependence on Co concentration.
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Entities:  

Keywords:  iron-based superconductors; lattice distortions; local magnetic moment; scanning transmission electron microscopy

Year:  2015        PMID： 25809406     DOI： 10.1002/adma.201404079

Source DB:  PubMed          Journal:  Adv Mater        ISSN： 0935-9648            Impact factor:   30.849


  1 in total

1.  Two types of magnetic shape-memory effects from twinned microstructure and magneto-structural coupling in Fe1+y Te.

Authors:  Sahana Rößler; Cevriye Koz; Zhaosheng Wang; Yurii Skourski; Mathias Doerr; Deepa Kasinathan; Helge Rosner; Marcus Schmidt; Ulrich Schwarz; Ulrich K Rößler; Steffen Wirth
Journal:  Proc Natl Acad Sci U S A       Date:  2019-08-07       Impact factor: 11.205
  1 in total

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