Proposed third long-range order in multiferroics
Journal
Physical Review B - Condensed Matter and Materials Physics
Journal Volume
81
Journal Issue
22
Date Issued
2010
Author(s)
Abstract
We proposed that in multiferroics, there exists a third long-range order besides the electric polarization and magnetic order. This long-range order reduces the symmetry of the spatial part of the wave functions of electrons. Thus the cancellation in the "spin-current" model can be avoided. As a result, the expectation value of electric polarization will be larger by an order of magnitude. We have derived a distinct form of electric polarization P- ∼- × ( sj ×sj+1), where Q- is the wave vector of this long-range order. © 2010 The American Physical Society.
SDGs
Type
journal article