The Japan Society of Applied Physics

2023 International Conference on Solid State Devices and Materials

2023 International Conference on Solid State Devices and Materials

Sep 5, 2023 - Oct 31, 2023
Nagoya Congress Center

11:45 AM - 12:00 PM

[M-6-05] Manipulation of Local Band Alignment Distribution by Controlling the Stacking Sequence in Dipole Layer at Perovskite Oxide Interface Characterized by Conductive AFM

○Atsushi Tamura1, Takashi Onaya2, Koji Kita1,2 (1. Dept. of Materials Engineering, Univ. of Tokyo (Japan), 2. Dept. of Advanced Materials Science, Univ. of Tokyo (Japan))

https://doi.org/10.7567/SSDM.2023.M-6-05

Dipole layer formation in perovskite epitaxial stacks is determined by the stacking sequence of monatomic layers in polar oxide (LaAlO3 (LAO)), which is affected only by inserting a few monolayers of SrAlOx between LAO and conductive layer of SrRuO3 (SRO). In this study, manipulation of the spatial distribution of locally defined band alignment by controlling the stacking sequence in dipole layer was characterized by the analysis of Fowler-Nordheim tunneling current with conductive-AFM.