Atomic and electronic structure of the SrNbO3/SrNbO3.4 interface

作者：Chen Chunlin; Lv Shuhui^*; Wang Zhongchang; Akagi Kazuto; Lichtenberg Frank; Ikuhara Yuichi; Bednorz Johannes Georg

来源：Applied Physics Letters, 2014, 105(22): 221602.

DOI：10.1063/1.4902970

We have determined the atomic-scale structure of the SrNbO3/SrNbO3.4 interface and related it to the electronic structure. Experimentally, transmission electron microscopy observations reveal that SrNbO3 and SrNbO3.4 show orientation relationships [(1) over bar 10](SrNbO3) // [010](SrNbO3.4) and (110)(SrNbO3) // (001)(SrNbO3.4), and that their interface is coherent and atomically abrupt. Theoretically, this interface is found to be strongly anisotropic in electronic structure, and takes on quasi-one-dimensional nature. We also find that the interface impacts greatly the electron occupation of Nb d orbitals, particularly d(z)(2) orbital. The combined study represents a relevant advance in atomically bridging structures to properties of heterointerfaces.

• 出版日期2014-12-1
• 单位长春理工大学