Quantum theory of magnetoelectricity in rare-earth multiferroics: Nd, Sm, and Eu ferroborates

The quantum theory of magnetoelectricity in rare-earth ferroborates is developed. It is shown that the electric polarization in the materials is induced by means of two single-ion mechanisms: effective magnetic and crystal fields produce the electric dipole moment directly in the electronic 4[functi...

Full description

Saved in:

Bibliographic Details
Published in:	Physical review. B, Condensed matter and materials physics Vol. 87; no. 2
Main Authors:	Popov, A. I., Plokhov, D. I., Zvezdin, A. K.
Format:	Journal Article
Language:	English
Published:	17-01-2013
Subjects:	Condensed matter Dipole moment Electric dipoles Electronics Neodymium Quantum theory Rare earth metals Samarium
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	The quantum theory of magnetoelectricity in rare-earth ferroborates is developed. It is shown that the electric polarization in the materials is induced by means of two single-ion mechanisms: effective magnetic and crystal fields produce the electric dipole moment directly in the electronic 4[functionof] shells of rare-earth ions (the electronic contribution) and also through displacement of oppositely charged ion sublattices (the ionic one). The magnetoelectrical properties are described in detail for the neodymium, samarium, and europium ferroborates. In particular, the field and temperature dependencies of polarization are obtained.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1098-0121 1550-235X
DOI:	10.1103/PhysRevB.87.024413