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...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2013
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| Online Access: | https://hdl.handle.net/10356/99302 http://hdl.handle.net/10220/17326 |
| _version_ | 1826128480840974336 |
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| author | Panagopoulos, Christos Mukherjee, S. Andersen, B. M. Viskadourakis, Z. Radulov, I. |
| 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. |
| author_sort | Panagopoulos, Christos |
| collection | NTU |
| 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. |
| first_indexed | 2024-10-01T07:25:19Z |
| format | Journal Article |
| id | ntu-10356/99302 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:25:19Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-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 |
| spellingShingle | DRNTU::Science::Physics Panagopoulos, Christos Mukherjee, S. Andersen, B. M. Viskadourakis, Z. Radulov, I. Bi-quadratic magnetoelectric coupling in underdoped La2CuO4+x |
| title | 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_short | Bi-quadratic magnetoelectric coupling in underdoped La2CuO4+x |
| title_sort | bi quadratic magnetoelectric coupling in underdoped la2cuo4 x |
| topic | DRNTU::Science::Physics |
| url | https://hdl.handle.net/10356/99302 http://hdl.handle.net/10220/17326 |
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