Reference : Direct magnetization-polarization coupling in BaCuF4
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/228568
Direct magnetization-polarization coupling in BaCuF4
English
García Castro, Andrès Camilo mailto [Université de Liège - ULiège > Département de physique > Physique théorique des matériaux >]
Ibarra-Hernandez, Wilfredo []
Bousquet, Eric mailto [Université de Liège - ULiège > Département de physique > Physique théorique des matériaux >]
Romero, Aldo mailto [Université de Liège - ULiège > Département de physique > Physique des matériaux et nanostructures >]
Sep-2018
Physical Review Letters
American Physical Society
121
117601
Yes (verified by ORBi)
International
0031-9007
1079-7114
New York
NY
[en] Multiferroics ; Magnetoelectrics
[en] Herewith, first-principles calculations based on density functional theory are used to describe the ideal magnetization reversal through polarization switching in BaCuF4 which, according to our results, could be accomplished close to room temperature. We also show that this ideal coupling is driven by a single soft mode that combines both polarization, and octahedral rotation. The later being directly coupled to the weak ferromagnetism of BaCuF4. This, added to its strong Jahn-Teller distortion and its orbital ordering, makes this material a very appealing prototype for crystals in the ABX4 family for multifunctional applications. The described mechanism behaves ideally as it couples the ferroelectric and the magnetic properties naturally and it has not been reported previously.
PhyTheMa
Céci FRS-FNRS (Grant No. 2.5020.1) and Tier-1 supercomputer of the Feédération Wallonie-Bruxelles funded by the Walloon Region (Grant No. 1117545)
Researchers ; Professionals
http://hdl.handle.net/2268/228568
10.1103/PhysRevLett.121.117601

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