Lobzenko I P, Goncharov P P, Ter-Oganessian N V
Institute of Physics, Southern Federal University, 194 Stachki pr., Rostov-on-Don 344090, Russia.
J Phys Condens Matter. 2015 Jun 24;27(24):246002. doi: 10.1088/0953-8984/27/24/246002. Epub 2015 Jun 3.
Two prominent magnetoelectrics MnWO4 and CuO possess low-temperature commensurate paraelectric magnetically ordered phase. Here using Monte Carlo simulations we show that the walls between the domains of this phase are ferroelectric with the same electric polarization direction and value as those in the magnetoelectric phases of these compounds. We also suggest that experimental observation of electric polarization of domain walls in MnWO4 should help to determine the macroscopic interactions responsible for its magnetoelectric properties.
两种著名的磁电体MnWO4和CuO具有低温同型顺电磁有序相。在此，我们通过蒙特卡罗模拟表明，该相的畴壁是铁电的，其极化方向和值与这些化合物的磁电相中的相同。我们还提出，对MnWO4中畴壁极化的实验观察应有助于确定导致其磁电性质的宏观相互作用。
