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. 2017 Mar;29(9).
doi: 10.1002/adma.201602327. Epub 2016 Dec 30.

Strain and Magnetic Field Induced Spin-Structure Transitions in Multiferroic BiFeO3

A Agbelele  1 , D Sando  2   3 , C Toulouse  4 , C Paillard  5 , R D Johnson  6 , R Rüffer  7 , A F Popkov  8   9 , C Carrétéro  2 , P Rovillain  4 , J-M Le Breton  1 , B Dkhil  5 , M Cazayous  4 , Y Gallais  4 , M-A Méasson  4 , A Sacuto  4 , P Manuel  10 , A K Zvezdin  8   11   12 , A Barthélémy  2 , J Juraszek  1 , M Bibes  2
Affiliations

Strain and Magnetic Field Induced Spin-Structure Transitions in Multiferroic BiFeO3

A Agbelele et al. Adv Mater. 2017 Mar.

Abstract

The magnetic-field-dependent spin ordering of strained BiFeO3 films is determined using nuclear resonant scattering and Raman spectroscopy. The critical field required to destroy the cycloidal modulation of the Fe spins is found to be significantly lower than in the bulk, with appealing implications for field-controlled spintronic and magnonic devices.

Keywords: BiFeO3; cycloid; strain engineering; thin films.

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