Heteroepitaxial Control of Fermi Liquid, Hund Metal, and Mott Insulator Phases in Single-Atomic-Layer Ruthenates

Heteroepitaxial Control of Fermi Liquid, Hund Metal, and Mott Insulator Phases in Single-Atomic-Layer Ruthenates

© 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 15 vom: 06. Apr., Seite e2208833
1. Verfasser: Kim, Jeong Rae (VerfasserIn)
Weitere Verfasser: Sohn, Byungmin, Lee, Hyeong Jun, Lee, Sangmin, Ko, Eun Kyo, Hahn, Sungsoo, Lee, Sangjae, Kim, Younsik, Kim, Donghan, Kim, Hong Joon, Kim, Youngdo, Son, Jaeseok, Ahn, Charles H, Walker, Frederick J, Go, Ara, Kim, Miyoung, Kim, Choong H, Kim, Changyoung, Noh, Tae Won
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article angle-resolved photoemission spectroscopy correlated electron systems density functional theory dynamical mean-field theory epitaxial oxide heterostructures interface control ruthenates
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520 |a Interfaces between dissimilar correlated oxides can offer devices with versatile functionalities, and great efforts have been made to manipulate interfacial electronic phases. However, realizing such phases is often hampered by the inability to directly access the electronic structure information; most correlated interfacial phenomena appear within a few atomic layers from the interface. Here, atomic-scale epitaxy and photoemission spectroscopy are utilized to realize the interface control of correlated electronic phases in atomic-scale ruthenate-titanate heterostructures. While bulk SrRuO3 is a ferromagnetic metal, the heterointerfaces exclusively generate three distinct correlated phases in the single-atomic-layer limit. The theoretical analysis reveals that atomic-scale structural proximity effects yield Fermi liquid, Hund metal, and Mott insulator phases in the quantum-confined SrRuO3 . These results highlight the extensive interfacial tunability of electronic phases, hitherto hidden in the atomically thin correlated heterostructure. Moreover, this experimental platform suggests a way to control interfacial electronic phases of various correlated materials 
650 4 |a Journal Article 
650 4 |a angle-resolved photoemission spectroscopy 
650 4 |a correlated electron systems 
650 4 |a density functional theory 
650 4 |a dynamical mean-field theory 
650 4 |a epitaxial oxide heterostructures 
650 4 |a interface control 
650 4 |a ruthenates 
700 1 |a Sohn, Byungmin  |e verfasserin  |4 aut 
700 1 |a Lee, Hyeong Jun  |e verfasserin  |4 aut 
700 1 |a Lee, Sangmin  |e verfasserin  |4 aut 
700 1 |a Ko, Eun Kyo  |e verfasserin  |4 aut 
700 1 |a Hahn, Sungsoo  |e verfasserin  |4 aut 
700 1 |a Lee, Sangjae  |e verfasserin  |4 aut 
700 1 |a Kim, Younsik  |e verfasserin  |4 aut 
700 1 |a Kim, Donghan  |e verfasserin  |4 aut 
700 1 |a Kim, Hong Joon  |e verfasserin  |4 aut 
700 1 |a Kim, Youngdo  |e verfasserin  |4 aut 
700 1 |a Son, Jaeseok  |e verfasserin  |4 aut 
700 1 |a Ahn, Charles H  |e verfasserin  |4 aut 
700 1 |a Walker, Frederick J  |e verfasserin  |4 aut 
700 1 |a Go, Ara  |e verfasserin  |4 aut 
700 1 |a Kim, Miyoung  |e verfasserin  |4 aut 
700 1 |a Kim, Choong H  |e verfasserin  |4 aut 
700 1 |a Kim, Changyoung  |e verfasserin  |4 aut 
700 1 |a Noh, Tae Won  |e verfasserin  |4 aut 
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773 1 8 |g volume:35  |g year:2023  |g number:15  |g day:06  |g month:04  |g pages:e2208833 
856 4 0 |u http://dx.doi.org/10.1002/adma.202208833  |3 Volltext 
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