Charge Transfer in Iridate-Manganite Superlattices

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Title
Charge Transfer in Iridate-Manganite Superlattices
Author(s)
Okamoto S.; Nichols J.; Sohn C.; So Yeun Kim; Tae Won Noh; Lee H.N.
Publication Date
2017-04
Journal
NANO LETTERS, v.17, no.4, pp.2126 - 2130
Publisher
AMER CHEMICAL SOC
Abstract
Charge transfer in superlattices consisting of SrIrO3 and SrMnO3 is investigated using density functional theory. Despite the nearly identical work function and nonpolar interfaces between SrIrO3 and SrMnO3, rather large charge transfer was experimentally reported at the interface between them. Here, we report a microscopic model that captures the mechanism behind this phenomenon, providing a qualitative understanding of the experimental observation. This leads to unique strain dependence of such charge transfer in iridate-manganite superlattices. The predicted behavior is consistently verified by experiment with soft X-ray and optical spectroscopy. Our work thus demonstrates a new route to control electronic states in nonpolar oxide heterostructures. © 2017 American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/3552
ISSN
1530-6984
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
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