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Title: | Theory of the magnetoeletric effect in a lightly doped high-Tc cuprate | Authors: | Panagopoulos, Christos Mukherjee, S. Andersen, B. M. Viskadourakis, Z. Radulov, I. |
Keywords: | DRNTU::Science::Physics::Electricity and magnetism | Issue Date: | 2012 | Source: | Mukherjee, S., Andersen, B. M., Viskadourakis, Z., Radulov, I., & Panagopoulos, C. (2012). Theory of the magnetoeletric effect in a lightly doped high-Tc cuprate. Physical Review B, 85(14), 140405-. | Series/Report no.: | Physical review B | Abstract: | In a recent study, Viskadourakis et al. (arXiv:1111.0050) discovered that extremely underdoped La2CuO4+x is a relaxor ferroelectric and a magnetoelectric material at low temperatures. It is further observed that the magnetoelectric response is anisotropic for different directions of electric polarization and applied magnetic field. By constructing an appropriate Landau theory, we show that a biquadratic magnetoelectric coupling can explain the experimentally observed polarization dependence on magnetic field. This coupling leads to several interesting low-temperature effects, including a feedback enhancement of the magnetization within the ferroelectric phase, and a predicted magnetocapacitive effect. | URI: | https://hdl.handle.net/10356/97543 http://hdl.handle.net/10220/9250 |
DOI: | 10.1103/PhysRevB.85.140405 | Schools: | School of Physical and Mathematical Sciences | Rights: | © 2012 American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at the following official DOI: [http://dx.doi.org/10.1103/PhysRevB.85.140405]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | SPMS Journal Articles |
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