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Insulating-layer formation of metallic LaNiO3 on Nb-doped SrTiO3 substrate
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- Title
- Insulating-layer formation of metallic LaNiO3 on Nb-doped SrTiO3 substrate
- Author(s)
- Hyang Keun Yoo; Chang Y.J.; Moreschini L.; Hyeong-Do Kim; Chang Hee Sohn; Soobin Sinn; Ji Seop Oh; Cheng-Tai Kuo; Bostwick A.; Rotenberg E.; Tae Won Noh
- Publication Date
- 2015-03
- Journal
- APPLIED PHYSICS LETTERS, v.106, no.12, pp.121601
- Publisher
- AMER INST PHYSICS
- Abstract
- We investigated the electronic structures of strongly correlated metallic LaNiO3 (LNO) and semiconducting Nb-doped SrTiO3 (Nb:STO) heterostructures by varying the LNO film thickness using in situ photoemission spectroscopy. We found that, contrary to other interfaces with SrTiO3 and LaAlO3, insulating LNO layers are formed between metallic LNO layers and Nb:STO. Such behavior seems to be related with an electron transfer from Nb:STO to LNO due to Schottky-barrier formation at the interface. © 2015 AIP Publishing LLC
- ISSN
- 0003-6951
- Appears in Collections:
- Center for Correlated Electron Systems(강상관계 물질 연구단) > 1. Journal Papers (저널논문)
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