Structure and interaction of antiferromagnetic domain walls in hexagonal YMnO3.
The structure of antiferromagnetic (AFM) domain walls and their interaction with lattice strain are derived taking the multiple-order-parameter compound YMnO3 as a model example. Contrary to the conviction that AFM domain walls are energetically unfavorable, their interaction with lattice strain lowers the total energy of the system and leads to a piezomagnetic clamping of the electric and magnetic order parameters in good agreement with the available experimental data.
Goltsev
A V
AV
Ioffe Physical Technical Institute of the Russian Academy of Sciences, 194021 St. Petersburg, Russia.
Pisarev
R V
RV
Lottermoser
Th
T
Fiebig
M
M