Strain and Magnetic Field Induced Spin-Structure Transitions in Multiferroic BiFeO3
A. Agbelele, D. Sando, C. Toulouse, C. Paillard, R. D. Johnson, R., Ruffer, A. F. Popkov, C. Carretero, P. Rovillain, J.-M. Le Breton, B. Dkhil,, M. Cazayous, Y. Gallais, M.-A. Measson, A. Sacuto, P. Manuel, A. K. Zvezdin,, A. Barthelemy, J. Juraszek, M. Bibes
TL;DR
This study investigates how strain and magnetic fields influence the spin structures in BiFeO3 films, revealing a lower critical field for spin modulation than in bulk material, with implications for spintronic applications.
Contribution
It provides new insights into the magnetic-field-induced spin-structure transitions in strained BiFeO3 films using nuclear resonant scattering and Raman spectroscopy.
Findings
Lower critical magnetic field needed to disrupt cycloidal spin order in films
Strain significantly affects spin-structure stability
Potential for field-controlled spintronic devices
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.
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