Low-temperature ferroelectric phase and magnetoelectric coupling in underdoped La2CuO4+x
(2012) In Physical Review B (Condensed Matter and Materials Physics) 85(21).- Abstract
- We report the discovery of ferroelectricity below 4.5 K in highly underdoped La2CuO4+x accompanied by slow charge dynamics which develop below T similar to 40 K. An anisotropic magnetoelectric response has also been observed, indicating considerable spin-charge coupling in this lightly doped parent high-temperature copper-oxide superconductor. The ferroelectric state is proposed to develop from polar nanoregions, in which spatial inversion symmetry is locally broken due to nonstoichiometric carrier doping.
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https://lup.lub.lu.se/record/2896995
- author
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review B (Condensed Matter and Materials Physics)
- volume
- 85
- issue
- 21
- publisher
- American Physical Society
- external identifiers
-
- wos:000304692700004
- scopus:84862197043
- ISSN
- 1098-0121
- DOI
- 10.1103/PhysRevB.85.214502
- language
- English
- LU publication?
- yes
- id
- eb9c44a5-4bed-460e-895e-4cb97598f15a (old id 2896995)
- date added to LUP
- 2016-04-01 13:28:49
- date last changed
- 2022-01-27 19:25:24
@article{eb9c44a5-4bed-460e-895e-4cb97598f15a, abstract = {{We report the discovery of ferroelectricity below 4.5 K in highly underdoped La2CuO4+x accompanied by slow charge dynamics which develop below T similar to 40 K. An anisotropic magnetoelectric response has also been observed, indicating considerable spin-charge coupling in this lightly doped parent high-temperature copper-oxide superconductor. The ferroelectric state is proposed to develop from polar nanoregions, in which spatial inversion symmetry is locally broken due to nonstoichiometric carrier doping.}}, author = {{Viskadourakis, Z. and Radulov, I. and Petrovic, A. P. and Mukherjee, S. and Andersen, B. M. and Jelbert, G. and Headings, N. S. and Hayden, S. M. and Kiefer, K. and Landsgesell, S. and Argyriou, Dimitri and Panagopoulos, C.}}, issn = {{1098-0121}}, language = {{eng}}, number = {{21}}, publisher = {{American Physical Society}}, series = {{Physical Review B (Condensed Matter and Materials Physics)}}, title = {{Low-temperature ferroelectric phase and magnetoelectric coupling in underdoped La2CuO4+x}}, url = {{http://dx.doi.org/10.1103/PhysRevB.85.214502}}, doi = {{10.1103/PhysRevB.85.214502}}, volume = {{85}}, year = {{2012}}, }