Ferroelectricity induced by acentric spin-density waves in YMn$_2$O$_5$

Details Ferroelectricity induced by acentric spin-density waves in YMn$_2$O$_5$ Ferroelectricity induced by acentric spin-density waves in YMn$_2$O$_5$

2005-11-07

arxiv.org/abs/cond-mat/0511174v1

Physics

Condensed Matter

Materials Science

10 pages, 3 figures, 1 table

Scientific paper

10.1103/PhysRevLett.96.097601

The commensurate and incommensurate magnetic structures of the magnetoelectric system YMn$_{2}$O$_{5}$, 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 magneto-elastic coupling to the lattice, which enables us to predict the polarization based entirely on the observed magnetic structure. Our data accurately reproduce the temperature-dependence of the spontaneous polarization, in particular its sign reversal at the commensurate-incommensurate transition.

Affiliated with

Also associated with

No associations

Rating

Ferroelectricity induced by acentric spin-density waves in YMn$_2$O$_5$ does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Ferroelectricity induced by acentric spin-density waves in YMn$_2$O$_5$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ferroelectricity induced by acentric spin-density waves in YMn$_2$O$_5$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-337059