Ferroelectricity induced by acentric spin-density waves in YMn2O5.
The commensurate and incommensurate magnetic structures of the magnetoelectric system YMn2O5, as determined from neutron diffraction, were found to be spin-density waves lacking a global center of symmetry. We propose a model, based on a simple magnetoelastic coupling to the lattice, which enables u...
| Autori principali: | , , , , |
|---|---|
| Natura: | Journal article |
| Lingua: | English |
| Pubblicazione: |
2006
|