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

Liu, Kun1,2; Zhang, Ruyi1,2; Lu, Lu1,2; Mi, Shao-Bo1,2; Liu, Ming1,2; Wang, Hong1,2,3; Jia, Chun-Lin1,2,4

2019-06-30

10.1016/j.tsf.2019.04.020

THIN SOLID FILMS   影响因子和分区

0040-6090

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}1/4 < 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.

Copper ferrites Antiphase boundaries Interfacial dislocations Surface roughness Electron microscopy

SCI ; EI

英语

其他

National Basic Research Program of China[2015CB654903]

Materials Science ; Physics

Materials Science, Multidisciplinary ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter

WOS:000467389900008

ELSEVIER SCIENCE SA

20192607122614

Aluminum compounds ; Burgers vector ; Copper alloys ; Copper compounds ; Electron microscopes ; Electron microscopy ; Ferrite ; Ferrites ; Magnesium compounds ; Substrates ; Surface roughness

Metallography:531.2 ; Copper Alloys:544.2 ; Magnetic Materials:708.4 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Crystal Lattice:933.1.1

MATERIALS SCIENCE

Web of Science

1.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China
2.Xi An Jiao Tong Univ, Sch Microelect, Xian 710049, Shaanxi, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
4.Forschungszentrum Julich, Ernst Ruska Ctr Microscopy & Spect Electron, D-52425 Julich, Germany

Liu, Kun,Zhang, Ruyi,Lu, Lu,et al. Formation of antiphase boundaries in CuFe2O4 films induced by rough MgAl2O4 (001) substrates[J]. THIN SOLID FILMS,2019,680:55-59.

Liu, Kun.,Zhang, Ruyi.,Lu, Lu.,Mi, Shao-Bo.,Liu, Ming.,...&Jia, Chun-Lin.(2019).Formation of antiphase boundaries in CuFe2O4 films induced by rough MgAl2O4 (001) substrates.THIN SOLID FILMS,680,55-59.

Liu, Kun,et al."Formation of antiphase boundaries in CuFe2O4 films induced by rough MgAl2O4 (001) substrates".THIN SOLID FILMS 680(2019):55-59.