Bi-quadratic magnetoelectric coupling in underdoped La2CuO4+x

The recent discovery of relaxor ferroelectricity and magnetoelectric effect in lightly doped cuprate material La2CuO4+x has provided a number of questions concerning its theoretical description. Using a Ginzburg–Landau free energy approach, it has been argued that the magnetoelectric effect can be e...

Full description

Saved in:
Bibliographic Details
Main Authors: Panagopoulos, Christos, Mukherjee, S., Andersen, B. M., Viskadourakis, Z., Radulov, I.
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2013
Subjects:
Online Access:https://hdl.handle.net/10356/99302
http://hdl.handle.net/10220/17326
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-99302
record_format dspace
spelling sg-ntu-dr.10356-993022020-03-07T12:37:10Z Bi-quadratic magnetoelectric coupling in underdoped La2CuO4+x Panagopoulos, Christos Mukherjee, S. Andersen, B. M. Viskadourakis, Z. Radulov, I. School of Physical and Mathematical Sciences DRNTU::Science::Physics The recent discovery of relaxor ferroelectricity and magnetoelectric effect in lightly doped cuprate material La2CuO4+x has provided a number of questions concerning its theoretical description. Using a Ginzburg–Landau free energy approach, it has been argued that the magnetoelectric effect can be explained by bi-quadratic interaction terms in the free energy. Here, by using the same free energy functional, we study the variety of behavior which can emerge in the electric polarization under an external magnetic field. Subsequently, we discuss the role of Dzyaloshinskii–Moriya interaction in generating this magnetoelectric response. This work is particularly relevant for such relaxor systems where the material-dependent parameters would be affected by changes in, e.g., chemical doping or cooling rate. 2013-11-05T08:38:17Z 2019-12-06T20:05:33Z 2013-11-05T08:38:17Z 2019-12-06T20:05:33Z 2013 2013 Journal Article Mukherjee, S., Andersen, B. M., Viskadourakis, Z., Radulov, I., & Panagopoulos, C. (2013). Bi-quadratic magnetoelectric coupling in underdoped La2CuO4+x. Journal of superconductivity and novel magnetism, 26(5), 1649-1652. https://hdl.handle.net/10356/99302 http://hdl.handle.net/10220/17326 10.1007/s10948-012-2059-2 en Journal of superconductivity and novel magnetism
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Science::Physics
spellingShingle DRNTU::Science::Physics
Panagopoulos, Christos
Mukherjee, S.
Andersen, B. M.
Viskadourakis, Z.
Radulov, I.
Bi-quadratic magnetoelectric coupling in underdoped La2CuO4+x
description The recent discovery of relaxor ferroelectricity and magnetoelectric effect in lightly doped cuprate material La2CuO4+x has provided a number of questions concerning its theoretical description. Using a Ginzburg–Landau free energy approach, it has been argued that the magnetoelectric effect can be explained by bi-quadratic interaction terms in the free energy. Here, by using the same free energy functional, we study the variety of behavior which can emerge in the electric polarization under an external magnetic field. Subsequently, we discuss the role of Dzyaloshinskii–Moriya interaction in generating this magnetoelectric response. This work is particularly relevant for such relaxor systems where the material-dependent parameters would be affected by changes in, e.g., chemical doping or cooling rate.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Panagopoulos, Christos
Mukherjee, S.
Andersen, B. M.
Viskadourakis, Z.
Radulov, I.
format Article
author Panagopoulos, Christos
Mukherjee, S.
Andersen, B. M.
Viskadourakis, Z.
Radulov, I.
author_sort Panagopoulos, Christos
title Bi-quadratic magnetoelectric coupling in underdoped La2CuO4+x
title_short Bi-quadratic magnetoelectric coupling in underdoped La2CuO4+x
title_full Bi-quadratic magnetoelectric coupling in underdoped La2CuO4+x
title_fullStr Bi-quadratic magnetoelectric coupling in underdoped La2CuO4+x
title_full_unstemmed Bi-quadratic magnetoelectric coupling in underdoped La2CuO4+x
title_sort bi-quadratic magnetoelectric coupling in underdoped la2cuo4+x
publishDate 2013
url https://hdl.handle.net/10356/99302
http://hdl.handle.net/10220/17326
_version_ 1681046271409782784