Atomic and electronic structures of the interface and twin boundaries in epitaxial CuO films on a ZnO substrate - Details

author：

Zhao, Yanan (Zhao, Yanan.) ^[1] | Xing, Wandong (Xing, Wandong.) ^[2] (Scholars：邢万东) | Ma, Xingqiao (Ma, Xingqiao.) ^[3] | Yu, Rong (Yu, Rong.) ^[4] | Meng, Fanyan (Meng, Fanyan.) ^[5]

Indexed by：

EI Scopus SCIE

Abstract：

Interfacial　engineering　in　oxide　heterostructures　has　evolved　into　a　thriving　research　field　due　to　the　presence　of　diverse　novel　physical　phenomena.　In　this　study,　we　grew　epitaxial　CuO　thin　films　on　a　ZnO(0001)　single　crystal　substrate,　where　the　orientation　relationship　was　CuO　[110]　(111)　||　ZnO　[1120]　(0001).　The　atomic,　magnetic,　and　electronic　structures　of　the　CuO/ZnO　interface　and　the　CuO(001)　twin　boundary　were　studied　by　combining　aberration-corrected　scanning　transmission　electron　microscopy　and　first-principles　calculations.　The　CuO/ZnO　interface　was　found　to　be　fully　coherent　and　metallic,　making　it　possible　to　form　two-dimensional　electron　gas　between　the　two　semiconductors.

Keyword：

Copper oxide First-principles calculations Interface Scanning transmission electron microscopy Twin boundary

Community：

[ 1 ] [Zhao, Yanan]Univ Sci & Technol Beijing, Beijing Engn Res Ctr Detect & Applicat Weak Magnet, Dept Phys, Beijing 100083, Peoples R China
[ 2 ] [Ma, Xingqiao]Univ Sci & Technol Beijing, Beijing Engn Res Ctr Detect & Applicat Weak Magnet, Dept Phys, Beijing 100083, Peoples R China
[ 3 ] [Meng, Fanyan]Univ Sci & Technol Beijing, Beijing Engn Res Ctr Detect & Applicat Weak Magnet, Dept Phys, Beijing 100083, Peoples R China
[ 4 ] [Xing, Wandong]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China
[ 5 ] [Yu, Rong]Tsinghua Univ, Natl Ctr Electron Microscopy Beijing, Sch Mat Sci & Engn, Beijing 100084, Peoples R China