Control of large linear magnetoelectricity in Co3NiNb2O9

doi:10.1016/j.jmat.2020.12.017

Journal of Materiomics

Volume 7, Issue 4, July 2021, Pages 810-814

https://doi.org/10.1016/j.jmat.2020.12.017 Get rights and content

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Highlights

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The magnetic phase transition of Co₃NiNb₂O_9‘ is characterized.
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The electric polarization is observed under magnetic field below T_N.
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The magnetization is significantly modulated by the applied electric field.
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The stable magnetoelectric mutual control is realized in Co₃NiNb₂O₉.

Abstract

Magnetoelectric (ME) materials have caught worldwide attentions owing to their potential technological applications in ME switching devices or high-density data storage. However, realizing a sufficiently strong ME effect in one single material is always the key issue. Herein, we systematically investigate the Co₃NiNb₂O₉, including the characterization of its crystalline structure, magnetism, specific heat, and pyroelectric properties. It is revealed that Co₃NiNb₂O₉ exhibits a remarkable ME response below the magnetic phase transition temperature of T_N ∼32 K. On one hand, the magnetic field-induced electric polarization is observed below T_N while it is non-ferroelectric at no magnetic field. The evaluated ME coefficient is as large as 21.2 ps/m. On the other hand, the magnetization is significantly modulated by the applied electric field, with the inverse ME coefficient being 14.1 ps/m. The observed ME responses suggest a stable ME mutual control by the magnetic or electric field in Co₃NiNb₂O₉.

Graphical abstract

Keywords

Co₃NiNb₂O₉

Magnetoelectric effect

Crystal structure

Cited by (0)

Associate Professor Xiang Li obtained his B.A. and Ph.D degree at Nanjing University in 2012 and 2017, respectively. He works for Institute for Advanced Materials, Hubei Normal University since 2017. His research interests include the synthesis of advanced magnetoelectric materials, and the design and growth of functional magnetoelectric thin films, etc.

Yu Wang is currently working toward the M.S. degree in Institute for Advanced Materials at Hubei Normal University and his research focuses on the synthesis of advanced magnetoelectric materials.

Dr. Meifeng Liu received his Ph.D. degree in 2016 in condensed matter physics from Nanjing University. Now he is an associate professor in Institute for Advanced Materials at Hubei Normal University. His research interests focus on the physics of ferroelectrics, dielectrics and magnetoelectric coupling in multiferroic systems.

: Peer review under responsibility of The Chinese Ceramic Society.

¹: The two authors contribute equally to this work.