Abstract
Versatile and gigantic magnetoelectric (ME) phenomena have been found for a single crystal of . Below the antiferromagnetic ordering temperature of Dy moments, a linear-ME tensor component as large as is observed. It is also revealed that application of magnetic field along the axis induces a multiferroic (weakly ferromagnetic and ferroelectric) phase with magnetization [ (f.u.)] and electric polarization () both along the axis. Exchange striction working between adjacent and layers with the respective layered antiferromagnetic components is proposed as the origin of the ferroelectric polarization in the multiferroic phase.
- Received 2 June 2008
DOI:https://doi.org/10.1103/PhysRevLett.101.097205
©2008 American Physical Society