1.
Adv Mater
; 27(17): 2715-21, 2015 May 06.
Article
in English
| MEDLINE
| ID: mdl-25809406
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.