Low-temperature ferroelectric phase and magnetoelectric coupling in underdoped La2CuO4+x

Z. Viskadourakis; I. Radulov; A. P. Petrovic; S. Mukherjee; B. M. Andersen; G. Jelbert; N. S. Headings; S. M. Hayden; K. Kiefer; S. Landsgesell; D. N. Argyriou; C. Panagopoulos

doi:10.1103/PhysRevB.85.214502

Low-temperature ferroelectric phase and magnetoelectric coupling in underdoped La₂CuO_4+x

Z. Viskadourakis, I. Radulov, A. P. Petrovic, S. Mukherjee, B. M. Andersen, G. Jelbert, N. S. Headings, S. M. Hayden, K. Kiefer, S. Landsgesell, D. N. Argyriou, C. Panagopoulos

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

19 Citations (Scopus)

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.

Original language	English
Article number	214502
Pages (from-to)	-
Number of pages	8
Journal	Physical Review B: Condensed Matter and Materials Physics
Volume	85
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevB.85.214502
Publication status	Published - 1 Jun 2012

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PARTNERSHIP FUNDING: NOVEL QUANTUM ORDER IN INTERACTING ELECTRON METALS
Hayden, S. M. (Principal Investigator)
1/10/04 → 1/10/09
Project: Research

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Viskadourakis, Z., Radulov, I., Petrovic, A. P., Mukherjee, S., Andersen, B. M., Jelbert, G., Headings, N. S., Hayden, S. M., Kiefer, K., Landsgesell, S., Argyriou, D. N., & Panagopoulos, C. (2012). Low-temperature ferroelectric phase and magnetoelectric coupling in underdoped La₂CuO_4+x. Physical Review B: Condensed Matter and Materials Physics, 85(21), -. Article 214502. https://doi.org/10.1103/PhysRevB.85.214502

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title = "Low-temperature ferroelectric phase and magnetoelectric coupling in underdoped La2CuO4+x",

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 = "Z. Viskadourakis and I. Radulov and Petrovic, {A. P.} and S. Mukherjee and Andersen, {B. M.} and G. Jelbert and Headings, {N. S.} and Hayden, {S. M.} and K. Kiefer and S. Landsgesell and Argyriou, {D. N.} and C. Panagopoulos",

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doi = "10.1103/PhysRevB.85.214502",

language = "English",

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Viskadourakis, Z, Radulov, I, Petrovic, AP, Mukherjee, S, Andersen, BM, Jelbert, G, Headings, NS, Hayden, SM, Kiefer, K, Landsgesell, S, Argyriou, DN & Panagopoulos, C 2012, 'Low-temperature ferroelectric phase and magnetoelectric coupling in underdoped La₂CuO_4+x', Physical Review B: Condensed Matter and Materials Physics, vol. 85, no. 21, 214502, pp. -. https://doi.org/10.1103/PhysRevB.85.214502

TY - JOUR

T1 - Low-temperature ferroelectric phase and magnetoelectric coupling in underdoped La2CuO4+x

AU - Viskadourakis, Z.

AU - Radulov, I.

AU - Petrovic, A. P.

AU - Mukherjee, S.

AU - Andersen, B. M.

AU - Jelbert, G.

AU - Headings, N. S.

AU - Hayden, S. M.

AU - Kiefer, K.

AU - Landsgesell, S.

AU - Argyriou, D. N.

AU - Panagopoulos, C.

PY - 2012/6/1

Y1 - 2012/6/1

N2 - 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.

AB - 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.

U2 - 10.1103/PhysRevB.85.214502

DO - 10.1103/PhysRevB.85.214502

M3 - Article (Academic Journal)

SN - 1098-0121

VL - 85

SP - -

JO - Physical Review B: Condensed Matter and Materials Physics

JF - Physical Review B: Condensed Matter and Materials Physics

IS - 21

M1 - 214502

ER -

Low-temperature ferroelectric phase and magnetoelectric coupling in underdoped La2CuO4+x

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PARTNERSHIP FUNDING: NOVEL QUANTUM ORDER IN INTERACTING ELECTRON METALS

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Low-temperature ferroelectric phase and magnetoelectric coupling in underdoped La₂CuO_4+x