Magnetoelectric effects in an organo-metallic quantum magnet

Details Magnetoelectric effects in an organo-metallic quantum magnet Magnetoelectric effects in an organo-metallic quantum magnet

2010-06-21

arxiv.org/abs/1006.4122v1

Physics

Condensed Matter

Materials Science

3 pages, 3 figures

Scientific paper

We observe a bilinear magnetic field-induced electric polarization of 50 $\mu C/m^2$ in single crystals of NiCl$_2$-4SC(NH$_2$)$_2$ (DTN). DTN forms a tetragonal structure that breaks inversion symmetry, with the highly polar thiourea molecules all tilted in the same direction along the c-axis. Application of a magnetic field between 2 and 12 T induces canted antiferromagnetism of the Ni spins and the resulting magnetization closely tracks the electric polarization. We speculate that the Ni magnetic forces acting on the soft organic lattice can create significant distortions and modify the angles of the thiourea molecules, thereby creating a magnetoelectric effect. This is an example of how magnetoelectric effects can be constructed in organo-metallic single crystals by combining magnetic ions with electrically polar organic elements.

Affiliated with

Also associated with

No associations

Rating

Magnetoelectric effects in an organo-metallic quantum magnet 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 Magnetoelectric effects in an organo-metallic quantum magnet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetoelectric effects in an organo-metallic quantum magnet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-601920