Single-Crystal BiFeO3 Nanoplates with Robust Antiferromagnetism

Yang, Xin1,2; Zeng, RongGuang3; Ren, ZhaoHui1; Wu, YanFei4,5; Chen, Xing6; Li, Ming1; Chen, Jialu1; Zhao, Ruoyu1; Zhou, DiKui1; Liao, ZhiMin7; Tian, He6; Lu, YunHao1; Li, Xiang1; Li, JiXue6; Hang, GaoRong1

2018-02-14

10.1021/acsami.7b17449

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

Freestanding and single-crystal BiFeO3 (BFO) nanoplates have been successfully synthesized by a fluoride ion assisted hydrothermal method, and the thickness of the nanoplates can be effectively tailored from 80 to 380 nm by the concentration of fluoride ions. It is revealed that BFO nanoplates grew via an oriented attachment :of layer by layer, giving rise: to-the formation Of the inner interface within the nanoplates. In particular; antiferromagnetic (AFM) phase transition temperature (Neel temperature, T-N) of the BFO nanoplates is significantly enhanced from typical 370 to similar to 512 degrees C, whereas the Curie temperature (T-C) of the BFO nanoplates is determined to be similar to 830 degrees C, in good agreement with a bulk value The combination of scanning transmission electron microscopy, electron energy loss spectroscopy, and the first-principle calculations reveals that the interfacial tensile strain remarkably improves the stability of AFM ordering, accounting for the significant enhancement in T-N of BFO plates. Correspondingly, the tensile strain induced the polarization and oxygen octahedral tilting has been observed near the interface. The findings presented here suggest that single-crystal BFO nanoplate is an ideal system for exploring an intrinsic magnetoelectric property, where a tensile strain can be a very promising approach to tailor AFM ordering and polarization rotation for an enhanced coupling effect.

BiFeO3 nanoplates fluoride ion-assisted hydrothermal method interfacial tensile strain antiferromagnetism

SCI ; EI

英语

其他

China Postdoctoral Science Foundation[2015M571866]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000425572700072

AMER CHEMICAL SOC

20180804809929

Antiferromagnetism ; Bismuth compounds ; Chromium compounds ; Electron energy levels ; Electron energy loss spectroscopy ; Electron scattering ; Energy dissipation ; Fluorine compounds ; High resolution transmission electron microscopy ; Ions ; Iron compounds ; Nanostructures ; Polarization ; Scanning electron microscopy ; Single crystals ; Transmission electron microscopy

Energy Losses (industrial and residential):525.4 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Optical Devices and Systems:741.3 ; Nanotechnology:761 ; Mechanics:931.1 ; Solid State Physics:933 ; Crystalline Solids:933.1

Web of Science

1.Zhejiang Univ, State Key Lab Silicon Mat, Sch Mat Sci & Engn, Cyrus Tang Ctr Sensor Mat & Applicat, Hangzhou 310027, Peoples R China
2.Yunnan Normal Univ, Key Lab Adv Tech & Preparat Renewable Energy Mat, Minist Educ, Kunming 650500, Yunnan, Peoples R China
3.Sci & Technol Surface Phys & Chem Lab, POB 718-35, Mianyang 621907, Peoples R China
4.South Univ Sci & Technol China, Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
5.South Univ Sci & Technol China, Dept Phys, Shenzhen 518055, Peoples R China
6.Zhejiang Univ, Sch Mat Sci & Engn, Ctr Elect Microscope, Hangzhou 310027, Peoples R China
7.Peking Univ, Sch Phys, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China

Yang, Xin,Zeng, RongGuang,Ren, ZhaoHui,et al. Single-Crystal BiFeO3 Nanoplates with Robust Antiferromagnetism[J]. ACS Applied Materials & Interfaces,2018,10(6):5785-5792.

Yang, Xin.,Zeng, RongGuang.,Ren, ZhaoHui.,Wu, YanFei.,Chen, Xing.,...&Hang, GaoRong.(2018).Single-Crystal BiFeO3 Nanoplates with Robust Antiferromagnetism.ACS Applied Materials & Interfaces,10(6),5785-5792.

Yang, Xin,et al."Single-Crystal BiFeO3 Nanoplates with Robust Antiferromagnetism".ACS Applied Materials & Interfaces 10.6(2018):5785-5792.