Highly Flexible Freestanding BaTiO3-CoFe2O4 Heteroepitaxial Nanostructure Self-Assembled with Room-Temperature Multiferroicity

Zhong, Gaokuo1; An, Feng1; Qu, Ke1; Dong, Yongqi1,2; Yang, Zhenzhong3; Dai, Liyufen4; Xie, Shuhong4; Huang, Rong3; Luo, Zhenlin2; Li, Jiangyu1,5,6

2021-11-01

10.1002/smll.202104213

Small   影响因子和分区

1613-6810

1613-6829

Multiferroics with simultaneous electric and magnetic orderings are highly desirable for sensing, actuation, data storage, and bio-inspired systems, yet developing flexible materials with robust multiferroic properties at room temperature is a long-term challenge. Utilizing water-soluble Sr3Al2O6 as a sacrificial layer, the authors have successfully self-assembled a freestanding BaTiO3-CoFe2O4 heteroepitaxial nanostructure via pulse laser deposition, and confirmed its epitaxial growth in both out-of-plane and in-plane directions, with highly ordered CoFe2O4 nanopillars embedded in a single crystalline BaTiO3 matrix free of substrate constraint. The freestanding nanostructure enjoys super flexibility and mechanical integrity, not only capable of spontaneously curving into a roll, but can also be bent with a radius as small as 4.23 mu m. Moreover, piezoelectricity and ferromagnetism are demonstrated at both microscopic and macroscopic scales, confirming its robust multiferroicity at room temperature. This work establishes an effective route for flexible multiferroic materials, which have the potential for various practical applications.

BaTiO (3)-CoFe O-2 (4) flexible structure freestanding films multiferroicity self-assembled nanostructures

SCI ; EI

英语

通讯

National Natural Science Foundation of China[51902337,92066102,11627801] ; Shenzhen Science and Technology Innovation Committee["KQTD20170810160424889","RCYX20200714114733204","JCYJ20170818163902553","JCYJ20200109115219157"] ; Guangdong Provincial Key Laboratory Program from the Department of Science and Technology of Guangdong Province[2021B1212040001] ; Leading Talents Program of Guangdong province program[2016LJ06C372] ; Key-Area Research and Development Program of Guangdong Province[2018B010109009]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000721774300001

WILEY-V C H VERLAG GMBH

20214811232663

Aluminum compounds ; Barium titanate ; Cobalt compounds ; Crystallography ; Digital storage ; Flexible structures ; Iron compounds ; Nanostructures ; Storage (materials) ; Strontium compounds

Structural Members and Shapes:408.2 ; Storage:694.4 ; Data Storage, Equipment and Techniques:722.1 ; Nanotechnology:761 ; Inorganic Compounds:804.2 ; Ceramics:812.1 ; Solid State Physics:933 ; Crystalline Solids:933.1

Web of Science

1.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Nanobiomech, Shenzhen 518055, Guangdong, Peoples R China
2.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China
3.East China Normal Univ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R China
4.Xiangtan Univ, Sch Mat Sci & Engn, Xiangtan 411105, Hunan, Peoples R China
5.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
6.Southern Univ Sci & Technol, Guangdong Prov Key Lab Funct Oxide Mat & Devices, Shenzhen 518055, Guangdong, Peoples R China

Zhong, Gaokuo,An, Feng,Qu, Ke,et al. Highly Flexible Freestanding BaTiO3-CoFe2O4 Heteroepitaxial Nanostructure Self-Assembled with Room-Temperature Multiferroicity[J]. Small,2021,18.

Zhong, Gaokuo.,An, Feng.,Qu, Ke.,Dong, Yongqi.,Yang, Zhenzhong.,...&Li, Jiangyu.(2021).Highly Flexible Freestanding BaTiO3-CoFe2O4 Heteroepitaxial Nanostructure Self-Assembled with Room-Temperature Multiferroicity.Small,18.

Zhong, Gaokuo,et al."Highly Flexible Freestanding BaTiO3-CoFe2O4 Heteroepitaxial Nanostructure Self-Assembled with Room-Temperature Multiferroicity".Small 18(2021).