Growth and characterization of pyrochlore-type (Ca,Ti)(2)(Nb,Ti)(2)O-7 thin films

Yin, Jing-Wei1,2; Wang, Yan1,2; Chen, Yue-Hua3,4; Wu, Sheng-Qiang1,2; Cheng, Shao-Dong1,2; Mi, Shao-Bo1,2; Lu, Lu1,2; Jin, Lei5; Wang, Hong1,2,6

2021-03-01

10.1016/j.tsf.2021.138546

THIN SOLID FILMS   影响因子和分区

0040-6090

1879-2731

Pyrochlore-type (Ca,Ti)(2)(Nb,Ti)(2)O-7 thin films have been grown on single-crystalline LaAlO3 and yttria-stabilized zirconia substrates by a magnetron sputtering system. Atomic-scale interface structure and growth mode of the (Ca,Ti)(2)(Nb,Ti)(2)O-7 films on the substrates with different crystal structures have been investigated by advanced electron microscopy techniques. In both hetemsystems, the film/substrate orientation relationship of [100] (001)(film)//[100](001)(substrate )has been determined. In the heterosystem of (Ca,Ti)(2)(Nb,Ti)(2)O-7/yttria-stabilized zirconia, the films directly grow on the substrates. In contrast, in the (Ca,Ti)(2)(Nb,Ti)(2)O-7/LaAlO3 hetemsystem, a perovskite-type Ca1-square(Ti,Nb)O-3 interlayer with a few unit cells in thickness forms at the interface and interfacial reconstruction occurs at the (Ca,Ti)(2)(Nb,Ti)(2)O-7/Ca1-square(Ti,Nb)O-3 interface. Our findings indicate that the formation of the interlayer and the (Ca,Ti)(2)(Nb,Ti)(2)O-7/Ca1-square(Ti,Nb)O-3 interface reconstruction can accommodate the film/substrate dissimilarities in the crystal structures and facilitate the growth of single-crystalline pyrochlore-type films on the perovskite-type substrates.

Thin Films Interfaces Pyrochlore-type structure Film growth Advanced electron microscopy

SCI ; EI

英语

其他

National Natural Science Foundation of China[51471169,51901172,"2017YFB0406303"] ; National Basic Research Program of China[2015CB654903]

Materials Science ; Physics

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

WOS:000621728300003

ELSEVIER SCIENCE SA

20210409817785

Aluminum compounds ; Crystal atomic structure ; Lanthanum compounds ; Niobium metallography ; Perovskite ; Substrates ; Thin films ; Yttria stabilized zirconia ; Yttrium metallography ; Yttrium oxide ; Zirconia

Minerals:482.2 ; Metallography:531.2 ; Inorganic Compounds:804.2 ; Atomic and Molecular Physics:931.3

MATERIALS SCIENCE

Web of Science

1.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
2.Xi An Jiao Tong Univ, Sch Microelect, Xian 710049, Peoples R China
3.Nanjing Univ Posts & Telecommun, Key Lab Organ Elect & Informat Displays, Nanjing 210023, Peoples R China
4.Nanjing Univ Posts & Telecommun, Inst Adv Mat, Nanjing 210023, Peoples R China
5.Forschungszentrum Julich, Ernst Ruska Ctr Microscopy & Spect Electrons, D-52425 Julich, Germany
6.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Yin, Jing-Wei,Wang, Yan,Chen, Yue-Hua,et al. Growth and characterization of pyrochlore-type (Ca,Ti)(2)(Nb,Ti)(2)O-7 thin films[J]. THIN SOLID FILMS,2021,721.

Yin, Jing-Wei.,Wang, Yan.,Chen, Yue-Hua.,Wu, Sheng-Qiang.,Cheng, Shao-Dong.,...&Wang, Hong.(2021).Growth and characterization of pyrochlore-type (Ca,Ti)(2)(Nb,Ti)(2)O-7 thin films.THIN SOLID FILMS,721.

Yin, Jing-Wei,et al."Growth and characterization of pyrochlore-type (Ca,Ti)(2)(Nb,Ti)(2)O-7 thin films".THIN SOLID FILMS 721(2021).