Multiferroicity and magnetoelectric coupling in α-CaCr2O4

Details Multiferroicity and magnetoelectric coupling in α-CaCr2O4 Multiferroicity and magnetoelectric coupling in α-CaCr2O4

2011-04-26

arxiv.org/abs/1104.4932v1

Physics

Condensed Matter

Materials Science

14 pages, 4 figures

Scientific paper

Ferroelectricity in the incommensurate helical magnetic phase (below TN, 43K) of alpha CaCr2O4 has been confirmed by pyroelectric measurements. Magnetoelectric and magnetodielectric coupling exist below TN and are proportional to the square of magnetic field. From symmetry analysis, we suggest that the presence of an external electric field destabilizes the symmetrical 2221' phase and stabilizes 21' symmetry. This provides a unique system in which polarization varies as the fourth-degree of the order-parameter amplitude and exhibit a vanishingly small value below the first-order transition at TN, as observed experimentally.

Affiliated with

Also associated with

No associations

Rating

Multiferroicity and magnetoelectric coupling in α-CaCr2O4 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 Multiferroicity and magnetoelectric coupling in α-CaCr2O4, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiferroicity and magnetoelectric coupling in α-CaCr2O4 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-296345