Incommensurate magnetic structures of multiferroic MnWO4 studied within the superspace formalism


Urcelay-Olabarria, J. M. Perez-Mato, J. L. Ribeiro, J.L. Garcia-Muñoz, E. Ressouche, V. Skumryev, A.A. Muhkin

Phys. Rev. B 87, 014419 [10pp] (2013)

The spin modulations of the two manganese ions of the unit cell are symmetry-related in the paraelectric incommensurate phase -opposite chirality—while in the multiferroic phase they become independent. This symmetry break allows electric polarization along the b axis. phase

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