Ferroelectricity and Ferromagnetism Achieved via Adjusting Dimensionality in BiFeO3/BiMnO3Superlattices

Jin，Cai1,2; Li，Xiaowen1; Han，Wenqiao1; Liu，Qi1; Hu，Sixia3; Ji，Yanjiang1; Xu，Zedong1; Hu，Songbai1; Ye，Mao1; Gu，Meng4; Zhu，Yuanmin4,5; Chen，Lang1,3

2021

10.1021/acsami.1c11120

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

Integrating characteristics of materials through constructing artificial superlattices (SLs) has raised extensive attention in multifunctional materials. Here, we report the synthesis of BiFeO3/BiMnO3 SLs with considerable ferroelectric polarizations and tunable magnetic moments. The polarization of BiFeO3/BiMnO3 SLs presents a decent value of 12 μC/cm2, even as the dimensionality of BiFeO3 layers per period is reduced to about five-unit cells when keeping the BiMnO3 layers same. Moreover, it is found that the tunable magnetic moments of SLs are linked intimately to the dimensionality of BiFeO3 layers. Our simulations demonstrate that the superexchange interaction of Fe-O-Mn tends to be antiferromagnetic (AFM) with a lower magnetic domain formation energy rather than ferromagnetic (FM). Therefore, as the dimensionality of BiFeO3 per period is reduced, the AFM superexchange interaction between BiFeO3 and BiMnO3 in the SLs becomes weak, promoting a robust magnetization. This interlayer modulation effect in SLs presents an alluring way to accurately control the multiple order parameters in a multiferroic oxide system.

ferroelectricity ferromagnetism magnetic domain multiferroics superlattice

SCI ; EI

英语

第一 ; 通讯

NSFC (National Natural Science Foundation of China)[51972160,11804145] ; Science and Technology Research Items of Shenzhen grant["JCYJ20180504165650580","JCYJ20190809142603695"] ; Guangdong Basic and Applied Basic Research Foundation[2019A1515110519] ; High-Level Special Funding["G02206303","G02206403"]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000693050200109

AMER CHEMICAL SOC

20213710877584

Ferroelectricity ; Ferromagnetism ; Iron compounds ; Magnetic domains ; Magnetic moments ; Manganese compounds ; Multiferroics ; Polarization

Electricity: Basic Concepts and Phenomena:701.1 ; Magnetism: Basic Concepts and Phenomena:701.2

2-s2.0-85114443168

Scopus

1.Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China
2.School of Physics,Harbin Institute of Technology,Harbin,150081,China
3.Materials Characterization and Preparation Center,Southern University of Science and Technology,Shenzhen,518055,China
4.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
5.School of Materials Science and Engineering,Dongguan University of Technology,Dongguan,523808,China

Jin，Cai,Li，Xiaowen,Han，Wenqiao,et al. Ferroelectricity and Ferromagnetism Achieved via Adjusting Dimensionality in BiFeO3/BiMnO3Superlattices[J]. ACS Applied Materials & Interfaces,2021,13(34):41315-41322.

Jin，Cai.,Li，Xiaowen.,Han，Wenqiao.,Liu，Qi.,Hu，Sixia.,...&Chen，Lang.(2021).Ferroelectricity and Ferromagnetism Achieved via Adjusting Dimensionality in BiFeO3/BiMnO3Superlattices.ACS Applied Materials & Interfaces,13(34),41315-41322.

Jin，Cai,et al."Ferroelectricity and Ferromagnetism Achieved via Adjusting Dimensionality in BiFeO3/BiMnO3Superlattices".ACS Applied Materials & Interfaces 13.34(2021):41315-41322.