Multiferroic Behaviour in the New Double-Perovskite Lu2MnCoO6

Published

October 18, 2011

Author(s)

S. Yanez-Vilar, E. D. Mun, V. S. Zapf, B. G. Ueland, Jason S. Gardner, J. D. Thompson, J. Singleton, M. Sanchez-Andujar, J. Mira, N. Biskup, Rodriguez Senaris, C. D. Batista

Abstract

We present a new member of the multiferroic oxides, Lu₂MnCoO₆, which we have investigated using X-ray diffraction, neutron diffraction, specific heat, magnetization, electric polarization, and dielectric constant measurements. This material possesses an electric polarization strongly coupled to a net magnetization below 35 K, despite the antiferromagnetic ordering of the S = 3/2 Mn⁴⁺ and Co²⁺ spins in an arrow up}arrow up}arrow down}arrow down} configuration along the c-direction. We discuss the magnetic order in terms of a condensation of domain boundaries between arrow up}arrow up} and arrow down}arrow down} ferromagnetic domains, with each domain boundary producing a net electric polarization due to spatial inversion symmetry breaking. In an applied magnetic field the domain boundaries slide, controlling the size of the net magnetization, electric polarization, and magnetoelectric coupling.

Citation

Physical Review B

Volume

84

Issue

13

Pub Type

Journals

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Keywords

multiferroic diffraction

Citation

Yanez-Vilar, S. , Mun, E. , Zapf, V. , Ueland, B. , Gardner, J. , Thompson, J. , Singleton, J. , Sanchez-Andujar, M. , Mira, J. , Biskup, N. , Senaris, R. and Batista, C. (2011), Multiferroic Behaviour in the New Double-Perovskite Lu₂MnCoO₆, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=908710 (Accessed December 2, 2024)