Hybrid Improper Ferroelectricity: A Mechanism for Controllable Magnetization-Polarization Coupling

Details Hybrid Improper Ferroelectricity: A Mechanism for Controllable Magnetization-Polarization Coupling Hybrid Improper Ferroelectricity: A Mechanism for Controllable Magnetization-Polarization Coupling

2010-07-06

arxiv.org/abs/1007.1003v2

Physics

Condensed Matter

Materials Science

Scientific paper

First-principles calculations are presented for the layered perovskite Ca$_3$Mn$_2$O$_7$. The results reveal a rich set of coupled structural, magnetic and polar domains in which oxygen octahedron rotations induce ferroelectricity, magnetoelectricity and weak-ferromagnetism. The key point is that the rotation distortion is a combination of two non-polar modes with different symmetries. We use the term "hybrid" improper ferroelectricity to describe this phenomenon and discuss how control over magnetism is achieved through these functional antiferrodistortive octahedron rotations.

Affiliated with

Also associated with

No associations

Rating

Hybrid Improper Ferroelectricity: A Mechanism for Controllable Magnetization-Polarization Coupling 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 Hybrid Improper Ferroelectricity: A Mechanism for Controllable Magnetization-Polarization Coupling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hybrid Improper Ferroelectricity: A Mechanism for Controllable Magnetization-Polarization Coupling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-344591