Room-temperature multiferroic properties in NiBi2O4

Kai Chen; Feng Gao; Weiwei Lin; Hongling Cai; Guolin Li; Xingwei Dong; Song Peng; Xiaoshan Wu; Mao Yang; Jun Du; Xiaomei Lu; Junming Liu; Jinsong Zhu

doi:10.1209/0295-5075/89/27004

All issues

Volume 89 / No 2 (January 2010)

EPL, 89 2 (2010) 27004

Abstract

Issue		EPL Volume 89, Number 2, January 2010


Article Number		27004
Number of page(s)		4
Section		Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties
DOI		https://doi.org/10.1209/0295-5075/89/27004
Published online		01 February 2010

EPL, 89 (2010) 27004

Room-temperature multiferroic properties in NiBi₂O₄

Kai Chen¹^,2^,3, Feng Gao¹^,2, Weiwei Lin¹^,2, Hongling Cai¹^,2, Guolin Li¹^,2, Xingwei Dong¹^,2, Song Peng¹^,2, Xiaoshan Wu¹^,2, Mao Yang¹^,2, Jun Du¹^,2, Xiaomei Lu¹^,2, Junming Liu¹^,2 and Jinsong Zhu¹^,2

¹ National Laboratory of Solid State Microstructures, Nanjing University - Nanjing 210093, PRC
² Department of Physics, Nanjing University - Nanjing 210093, PRC
³ Department of Physics, Nanjing University of Science and Technology - Nanjing 210094, PRC

Corresponding authors: pacinonono@yahoo.com.cn jszhu@nju.edu.cn

Received: 6 August 2009
Accepted: 21 December 2009

Abstract

Magnetism and ferroelectricity at room temperature are observed in the NiBi₂O₄ ceramics. Both the time reversal and the inversion symmetry of the structure (space group F-43m) are broken. The saturation magnetization is 0.028 emu/g and the saturation polarization 2P_s ~ 4.0 μC/cm². NiBi₂O₄ also shows other room-temperature multiferroic properties, e.g. the piezoelectric coefficient (d₃₃), the polarized dielectric character, the magneto-dielectric response and the magnetoelectric effect.

PACS: 75.30.-m – Intrinsic properties of magnetically ordered materials / 77.84.-s – Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials

© EPLA, 2010

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