Theory of magnetic field-induced metaelectric critical end point in BiMn$_2$O$_5$

Details Theory of magnetic field-induced metaelectric critical end point in BiMn$_2$O$_5$ Theory of magnetic field-induced metaelectric critical end point in BiMn$_2$O$_5$

2008-10-13

arxiv.org/abs/0810.2332v1

Phys. Rev. B 79 104437 (2009)

Physics

Condensed Matter

Materials Science

Theory; relevant experiment uploaded as arXiv:0810.1907

Scientific paper

10.1103/PhysRevB.79.104437

A recent experiment on the multiferroic BiMn$_2$O$_5$ compound under a strong applied magnetic field revealed a rich phase diagram driven by the coupling of magnetic and charge (dipolar) degrees of freedom. Based on the exchange-striction mechanism, we propose here a theoretical model with the intent to capture the interplay of the spin and dipolar moments in the presence of a magnetic field in BiMn$_2$O$_5$. Experimentally observed behavior of the dielectric constants, magnetic susceptibility, and the polarization is, for the most part, reproduced by our model. The critical behavior observed near the polarization reversal $(P=0)$ point in the phase diagram is interpreted as arising from the proximity to the critical end point.

Affiliated with

Also associated with

No associations

Rating

Theory of magnetic field-induced metaelectric critical end point in BiMn$_2$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 Theory of magnetic field-induced metaelectric critical end point in BiMn$_2$O$_5$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theory of magnetic field-induced metaelectric critical end point in BiMn$_2$O$_5$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-590509