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

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

doi:10.1063/1.4902970

Atomic and electronic structure of the SrNbO₃/SrNbO_3.4 interface

Chunlin Chen, Shuhui Lv, Zhongchang Wang, Kazuto Akagi, Frank Lichtenberg, Yuichi Ikuhara, Johannes Georg Bednorz

Advanced Institute for Materials Research (AIMR)

Research output: Contribution to journal › Article

13 Citations (Scopus)

Abstract

We have determined the atomic-scale structure of the SrNbO₃/SrNbO_3.4 interface and related it to the electronic structure. Experimentally, transmission electron microscopy observations reveal that SrNbO₃ and SrNbO_3.4 show orientation relationships [1¯10]_SrNbO₃// [010]_SrNbO_3.4 and (110)_SrNbO₃ // (001)_SrNbO_3.4, 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_z² orbital. The combined study represents a relevant advance in atomically bridging structures to properties of heterointerfaces.

Original language	English
Article number	221602
Journal	Applied Physics Letters
Volume	105
Issue number	22
DOIs	https://doi.org/10.1063/1.4902970
Publication status	Published - 2014 Dec 1

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4902970

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Chen, C., Lv, S., Wang, Z., Akagi, K., Lichtenberg, F., Ikuhara, Y., & Bednorz, J. G. (2014). Atomic and electronic structure of the SrNbO₃/SrNbO_3.4 interface. Applied Physics Letters, 105(22), [221602]. https://doi.org/10.1063/1.4902970

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abstract = "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¯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 dz2 orbital. The combined study represents a relevant advance in atomically bridging structures to properties of heterointerfaces.",

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AU - Chen, Chunlin

AU - Lv, Shuhui

AU - Wang, Zhongchang

AU - Akagi, Kazuto

AU - Lichtenberg, Frank

AU - Ikuhara, Yuichi

AU - Bednorz, Johannes Georg

PY - 2014/12/1

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