Engineering Oxide Epitaxy beyond Substrate Constraint

Cheng, Mingqiang1,2,3; Li, Changjian2,3; Wang, Qiangli2; Ding, Lingtong4; Wang, Xiao4; Zhong, Gaokuo4; Li, Jiangyu2,3

2024-06-24

10.1021/acs.nanolett.4c02128

NANO LETTERS   影响因子和分区

1530-6984

1530-6992

Orientation engineering is a crucial aspect of thin film growth, and it is rather challenging to engineer film epitaxy beyond the substrate constraint. Guided by density functional theory calculations, we use SrRuO3 (SRO) as a buffer layer and successfully deposit [111]-oriented CoFe2O4 (CFO) on [001]-, [110]-, and [111]-oriented SrTiO3 (STO) substrates. This enables subsequent growth of [111]-oriented functional oxides, such as PbTiO3 (PTO), overcoming the constraint of the substrate. This strategy is quite general and applicable to lanthanum aluminate and yttria-stabilized zirconia substrates as well. X-ray Phi scans and atomic resolution aberration-corrected scanning transmission electron microscopy (AC-STEM) reveal detailed epitaxial relations in each of the cases, with four variants of [111]-CFO found on [001]-STO and two variants found on [110]-STO, formed to mitigate the large lattice misfit strain between the film and substrate. Our strategy thus provides a general pathway for orientation engineering of oxide epitaxy beyond substrate constraint.

orientation engineering thin film epitaxy buffer layer scanning transmissionelectron microscopy interfacial energy

SCI ; EI

英语

通讯

National Natural Science Foundation of China["52172115","52372054"] ; Natural Science Foundation of Guangdong Province, China[2022A1515010762] ; Guangdong Provincial Key Laboratory Program from the Department of Science and Technology of Guangdong Province[2021B1212040001] ; Guangdong Provincial Department of Education Innovation Team Program[2021KCXTD012] ; Shenzhen Science and Technology Program["RCYX20200714114733204","JCYJ20200109115219157","KQTD20170810160424889"]

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

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

WOS:001253341800001

AMER CHEMICAL SOC

20242616442362

Density functional theory ; Epitaxial growth ; Film growth ; High resolution transmission electron microscopy ; Iron compounds ; Lanthanum compounds ; Lead titanate ; Metal substrates ; Ruthenium compounds ; Scanning electron microscopy ; Sodium Aluminate ; Strontium titanates ; Thin films ; Titanium compounds ; Yttria stabilized zirconia ; Yttrium oxide

Optical Devices and Systems:741.3 ; Chemical Operations:802.3 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Coating Materials:813.2 ; Probability Theory:922.1 ; Atomic and Molecular Physics:931.3 ; Quantum Theory; Quantum Mechanics:931.4 ; Crystalline Solids:933.1 ; Crystal Growth:933.1.2

MATERIALS SCIENCE

Web of Science

1.Harbin Inst Technol, Harbin 150001, Heilongjiang, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
3.Southern Univ Sci & Technol, Guangdong Prov Key Lab Funct Oxide Mat & Devices, Shenzhen 518055, Guangdong, Peoples R China
4.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518055, Guangdong, Peoples R China

Cheng, Mingqiang,Li, Changjian,Wang, Qiangli,et al. Engineering Oxide Epitaxy beyond Substrate Constraint[J]. NANO LETTERS,2024,24(26):8171-8178.

Cheng, Mingqiang.,Li, Changjian.,Wang, Qiangli.,Ding, Lingtong.,Wang, Xiao.,...&Li, Jiangyu.(2024).Engineering Oxide Epitaxy beyond Substrate Constraint.NANO LETTERS,24(26),8171-8178.

Cheng, Mingqiang,et al."Engineering Oxide Epitaxy beyond Substrate Constraint".NANO LETTERS 24.26(2024):8171-8178.