Ultraflexible and Malleable Fe/BaTiO3 Multiferroic Heterostructures for Functional Devices

被引：42

作者：

Zhao, Yanan ^{[1
,2
]}

Peng, Renci ^{[1
,2
]}

Guo, Yunting ^{[1
,2
]}

Liu, Zhijie ^{[3
]}

Dong, Yongqi ^{[3
,4
]}

Zhao, Shishun ^{[1
,2
]}

Li, Yaojin ^{[1
,2
]}

Dong, Guohua ^{[1
,2
]}

Hu, Yue ^{[5
,6
]}

Zhang, Junwei ^{[5
,6
]}

Peng, Yong ^{[5
,6
]}

Yang, Tiannan ^{[7
]}

Tian, Bian ^{[8
]}

Zhao, Yifan ^{[1
,2
]}

Zhou, Ziyao ^{[1
,2
]}

Jiang, Zhuangde ^{[8
]}

Luo, Zhenlin ^{[3
]}

Liu, Ming ^{[1
,2
]}

机构：

[1] Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Minist Educ, Xian 710049, Peoples R China

[2] Xi An Jiao Tong Univ, Int Ctr Dielect Res, Sch Elect & Informat Engn, State Key Lab Mech Behav Mat,Int Joint Lab Micro, Xian 710049, Peoples R China

[3] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China

[4] Chinese Acad Sci, Shenzhen Key Lab Nanobiomech, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China

[5] Lanzhou Univ, Key Lab Magnetism & Magnet Mat, Minist Educ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China

[6] Lanzhou Univ, Electron Microscopy Ctr, Lanzhou 730000, Peoples R China

[7] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

[8] Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Collaborat Innovat Ctr High End Mfg Equipment, Int Joint Lab Micro Nano Mfg & Measurement Techno, Xian 710049, Peoples R China

来源：

ADVANCED FUNCTIONAL MATERIALS | 2021年 / 31卷 / 16期

基金：

中国博士后科学基金;

关键词：

ferromagnetic resonance; magnetoelectric coupling; multiferroic heterostructure; phase transition; ultraflexibility; INTERFACE; FILMS;

D O I：

10.1002/adfm.202009376

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The high demand for flexible spintronics based on multiferroic heterostructures makes growing high-quality flexible, functional oxides urgently, in which needs to be deposited on lattice-matched substrates. In this paper, ultraflexible and malleable iron (Fe)/BaTiO3 (BTO) multiferroic heterostructures are demonstrated, showing a perfect crystallinity and hetero-epitaxial growth. In terms of performance, they indicate good multiferroic properties and excellent bending tunability, as well as obvious magnetoelectric (ME) coupling effect. During the phase transformation from the rhombohedral phase to the orthorhombic phase of BTO layers in the heating process, a large ME coupling coefficient of 120 Oe degrees C-1 along the out-of-plane direction is obtained. This value keeps consistent in the phase-field simulation of magnetic domain evolution, in which the biaxial compressive strain induced-magnetoelastic anisotropy facilitates the magnetic easy axis of Fe layers to the [110] or [-1-10] direction. Besides, ultraflexible Fe/BTO heterostructures are found to have a 690 Oe ferromagnetic resonance (FMR) field shift along the out-of-plane direction under the flexible tuning (R = 5 mm). This work should pave a way toward flexible spintronic and functional devices with fast speed, portability, and low energy consumption.

引用

页数：6

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