Strain engineering of epitaxial oxide heterostructures beyond substrate limitations

Deng，Xiong1; Chen，Chao1; Chen，Deyang1,2; Cai，Xiangbin3; Yin，Xiaozhe1; Xu，Chao4; Sun，Fei1; Li，Caiwen1; Li，Yan5; Xu，Han6; Ye，Mao7; Tian，Guo1; Fan，Zhen1; Hou，Zhipeng1; Qin，Minghui1; Chen，Yu5; Luo，Zhenlin6; Lu，Xubing1; Zhou，Guofu2,8; Chen，Lang7; Wang，Ning3; Zhu，Ye4; Gao，Xingsen1; Liu，Jun Ming1,9

2021

10.1016/j.matt.2021.02.006

Matter   影响因子和分区

2590-2393

2590-2385

The limitation of commercial single-crystal substrates and the lack of continuous strain tunability preclude the ability to take full advantage of strain engineering for further exploring novel properties and exhaustively studying fundamental physics in complex oxides. Here, we report an approach for imposing continuously tunable epitaxial strain in oxide heterostructures beyond substrate limitations by inserting an interface layer through tailoring of its gradual strain relaxation. Taking BiFeO as a model system, we demonstrate the introduction of an ultrathin interface layer that allows the creation of desired strain states that can induce phase transition and stabilize a super-tetragonal phase as well as morphotropic phase boundaries, overcoming substrate limitations. Continuously tunable strain from tension to compression can be generated by precisely adjusting the interface layer thickness, enabling the achievement of continuous orthorhombic–rhombohedral-like–tetragonal-like phase transition. This proposed route could be extended to other oxide heterostructures, providing a platform for creating exotic phases and emergent phenomena.

BiFeO3 complex oxides continuous strain tuning epitaxial strain interface MAP2: Benchmark morphotropic phase boundary phase transition

SCI ; EI

英语

其他

WOS:000637800400004

20211310155405

Bismuth compounds ; Ground state ; Interface states ; Iron compounds ; Neodymium compounds ; Oxide films ; Phase boundaries ; Single crystals ; Strain relaxation ; Strontium titanates ; Superconducting materials ; Thin films ; Titanium compounds

Superconducting Materials:708.3 ; Physical Chemistry:801.4 ; Chemical Products Generally:804 ; Classical Physics; Quantum Theory; Relativity:931 ; Mechanics:931.1 ; High Energy Physics; Nuclear Physics; Plasma Physics:932 ; Crystalline Solids:933.1

2-s2.0-85103251345

Scopus

1.Institute for Advanced Materials,South China Academy of Advanced Optoelectronics,South China Normal University,Guangzhou,510006,China
2.Guangdong Provincial Key Laboratory of Optical Information Materials and Technology,South China Academy of Advanced Optoelectronics,South China Normal University,Guangzhou,510006,China
3.Department of Physics and Center for Quantum Materials,The Hong Kong University of Science and Technology,Kowloon,Clear Water Bay,China
4.Department of Applied Physics,The Hong Kong Polytechnic University,Kowloon,Hung Hom,China
5.Institute of High Energy Physics,Chinese Academy of Sciences,Beijing,100049,China
6.National Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei,230026,China
7.Department of Physics,Southern University of Science and Technology,Shenzhen,Nanshan District,518055,China
8.National Center for International Research on Green Optoelectronics,South China Normal University,Guangzhou,510006,China
9.Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures,Nanjing University,Nanjing,210093,China

Deng，Xiong,Chen，Chao,Chen，Deyang,et al. Strain engineering of epitaxial oxide heterostructures beyond substrate limitations[J]. Matter,2021,4:1323-1334.

Deng，Xiong.,Chen，Chao.,Chen，Deyang.,Cai，Xiangbin.,Yin，Xiaozhe.,...&Liu，Jun Ming.(2021).Strain engineering of epitaxial oxide heterostructures beyond substrate limitations.Matter,4,1323-1334.

Deng，Xiong,et al."Strain engineering of epitaxial oxide heterostructures beyond substrate limitations".Matter 4(2021):1323-1334.