Formation of antiphase boundaries in CuFe2O4 films induced by rough MgAl2O4 (001) substrates

Kun Liu; Ruyi Zhang; Lu Lu; Shao Bo Mi; Ming Liu; Hong Wang; Chun Lin Jia

doi:10.1016/j.tsf.2019.04.020

Formation of antiphase boundaries in CuFe₂O₄ films induced by rough MgAl₂O₄ (001) substrates

Kun Liu
, Ruyi Zhang
, Lu Lu
, Shao Bo Mi
, Ming Liu
, Hong Wang
, Chun Lin Jia

Faculty of Electronic and Information Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Antiphase boundaries in spinel ferrites have been considered as the functional elements with great potential for applications in spintronic devices. Engineering the antiphase boundaries is a big challenge in experiments. Here, we report on that a high density of antiphase boundaries in CuFe₂O₄ films have been prepared on rough surface of MgAl₂O₄ (001) substrates. By means of advanced electron microscopy these antiphase boundaries are found to be of {011}[Formula presented]〈011〉-type and bound by interfacial dislocations with Burgers vector of a/4〈011〉 that contribute to relaxation of in-plane and out-of-plane lattice strain in the heterostructure. Our results provide evidence that the rough substrate surface can be applied for the formation of antiphase boundaries in the CuFe₂O₄/MgAl₂O₄ system to tune the magnetic and electrical transport properties of epitaxial spinel ferrite films.

Original language	English
Pages (from-to)	55-59
Number of pages	5
Journal	Thin Solid Films
Volume	680
DOIs	https://doi.org/10.1016/j.tsf.2019.04.020
State	Published - 30 Jun 2019

Keywords

Antiphase boundaries
Copper ferrites
Electron microscopy
Interfacial dislocations
Surface roughness

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10.1016/j.tsf.2019.04.020

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@article{f2de16658c884ba1905edcde33b9e8bf,

title = "Formation of antiphase boundaries in CuFe2O4 films induced by rough MgAl2O4 (001) substrates",

abstract = "Antiphase boundaries in spinel ferrites have been considered as the functional elements with great potential for applications in spintronic devices. Engineering the antiphase boundaries is a big challenge in experiments. Here, we report on that a high density of antiphase boundaries in CuFe2O4 films have been prepared on rough surface of MgAl2O4 (001) substrates. By means of advanced electron microscopy these antiphase boundaries are found to be of \{011\}[Formula presented]〈011〉-type and bound by interfacial dislocations with Burgers vector of a/4〈011〉 that contribute to relaxation of in-plane and out-of-plane lattice strain in the heterostructure. Our results provide evidence that the rough substrate surface can be applied for the formation of antiphase boundaries in the CuFe2O4/MgAl2O4 system to tune the magnetic and electrical transport properties of epitaxial spinel ferrite films.",

keywords = "Antiphase boundaries, Copper ferrites, Electron microscopy, Interfacial dislocations, Surface roughness",

author = "Kun Liu and Ruyi Zhang and Lu Lu and Mi, \{Shao Bo\} and Ming Liu and Hong Wang and Jia, \{Chun Lin\}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = jun,

day = "30",

doi = "10.1016/j.tsf.2019.04.020",

language = "英语",

volume = "680",

pages = "55--59",

journal = "Thin Solid Films",

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TY - JOUR

T1 - Formation of antiphase boundaries in CuFe2O4 films induced by rough MgAl2O4 (001) substrates

AU - Liu, Kun

AU - Zhang, Ruyi

AU - Lu, Lu

AU - Mi, Shao Bo

AU - Liu, Ming

AU - Wang, Hong

AU - Jia, Chun Lin

PY - 2019/6/30

Y1 - 2019/6/30

N2 - Antiphase boundaries in spinel ferrites have been considered as the functional elements with great potential for applications in spintronic devices. Engineering the antiphase boundaries is a big challenge in experiments. Here, we report on that a high density of antiphase boundaries in CuFe2O4 films have been prepared on rough surface of MgAl2O4 (001) substrates. By means of advanced electron microscopy these antiphase boundaries are found to be of {011}[Formula presented]〈011〉-type and bound by interfacial dislocations with Burgers vector of a/4〈011〉 that contribute to relaxation of in-plane and out-of-plane lattice strain in the heterostructure. Our results provide evidence that the rough substrate surface can be applied for the formation of antiphase boundaries in the CuFe2O4/MgAl2O4 system to tune the magnetic and electrical transport properties of epitaxial spinel ferrite films.

AB - Antiphase boundaries in spinel ferrites have been considered as the functional elements with great potential for applications in spintronic devices. Engineering the antiphase boundaries is a big challenge in experiments. Here, we report on that a high density of antiphase boundaries in CuFe2O4 films have been prepared on rough surface of MgAl2O4 (001) substrates. By means of advanced electron microscopy these antiphase boundaries are found to be of {011}[Formula presented]〈011〉-type and bound by interfacial dislocations with Burgers vector of a/4〈011〉 that contribute to relaxation of in-plane and out-of-plane lattice strain in the heterostructure. Our results provide evidence that the rough substrate surface can be applied for the formation of antiphase boundaries in the CuFe2O4/MgAl2O4 system to tune the magnetic and electrical transport properties of epitaxial spinel ferrite films.

KW - Antiphase boundaries

KW - Copper ferrites

KW - Electron microscopy

KW - Interfacial dislocations

KW - Surface roughness

UR - https://www.scopus.com/pages/publications/85067929441

U2 - 10.1016/j.tsf.2019.04.020

DO - 10.1016/j.tsf.2019.04.020

M3 - 文章

AN - SCOPUS:85067929441

SN - 0040-6090

VL - 680

SP - 55

EP - 59

JO - Thin Solid Films

JF - Thin Solid Films

ER -

Formation of antiphase boundaries in CuFe₂O₄ films induced by rough MgAl₂O₄ (001) substrates

Abstract

Keywords

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