title: Charge Transfer in Iridate-Manganite Superlattices.
abstract: Charge transfer in superlattices consisting of SrIrO3and SrMnO3is investigated using density functional theory. Despite the nearly identical work function and nonpolar interfaces between SrIrO3and 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.
authors.affiliation: Materials Science and Technology Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States.
authors.forename: Satoshi
authors.identifier: 0000-0002-0493-7568
authors.initials: S
authors.lastname: Okamoto
authors.affiliation: Materials Science and Technology Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States.
authors.forename: John
authors.initials: J
authors.lastname: Nichols
authors.affiliation: Materials Science and Technology Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States.
authors.forename: Changhee
authors.initials: C
authors.lastname: Sohn
authors.affiliation: Center for Correlated Electron Systems, Institute for Basic Science (IBS) , Seoul 08826, Republic of Korea.|Department of Physics & Astronomy, Seoul National University , Seoul 08826, Republic of Korea.
authors.forename: So Yeun
authors.initials: SY
authors.lastname: Kim
authors.affiliation: Center for Correlated Electron Systems, Institute for Basic Science (IBS) , Seoul 08826, Republic of Korea.|Department of Physics & Astronomy, Seoul National University , Seoul 08826, Republic of Korea.
authors.forename: Tae Won
authors.initials: TW
authors.lastname: Noh
authors.affiliation: Materials Science and Technology Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States.
authors.forename: Ho Nyung
authors.identifier: 0000-0002-2180-3975
authors.initials: HN
authors.lastname: Lee
keywords: Oxide heterostructures; X-ray and optical measurements; density functional theory; electronic reconstruction; modeling