Charge disproportionation of Mn3d and O2p electronic states depending on strength of p-d hybridization in (LaMnO3)2(SrMnO3)2 superlattices

Hironori Nakao; Chihiro Tabata; Youichi Murakami; Yuichi Yamasaki; Hiroyuki Yamada; Sumio Ishihara; Masashi Kawasaki

doi:10.1103/PhysRevB.98.245146

Charge disproportionation of Mn3d and O2p electronic states depending on strength of p-d hybridization in (LaMnO3)2(SrMnO3)2 superlattices

Hironori Nakao, Chihiro Tabata, Youichi Murakami, Yuichi Yamasaki, Hiroyuki Yamada, Sumio Ishihara, Masashi Kawasaki

SCI - Physics

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The charge disproportionation of Mn 3d and O 2p electronic states was investigated in two (LaMnO3)2(SrMnO3)2 superlattices using the resonant x-ray scattering technique. The superlattices show significantly different conductivity even with the same composition. The large modulation of the Mn 3d electronic state was observed in the insulating sample, however the charge disproportionation and magnetic modulation of O 2p were shown in the semiconductive sample. It is suggested that the charge modulation appears in either Mn 3d or O 2p, which is strongly related to strength of the p-d hybridization, which is the main factor determining the electric conductivity in the superlattices.

Original language	English
Article number	245146
Journal	Physical Review B
Volume	98
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevB.98.245146
Publication status	Published - 2018 Dec 26

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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Charge disproportionation of Mn3d and O2p electronic states depending on strength of p-d hybridization in (LaMnO3)2(SrMnO3)2 superlattices. / Nakao, Hironori; Tabata, Chihiro; Murakami, Youichi; Yamasaki, Yuichi; Yamada, Hiroyuki; Ishihara, Sumio; Kawasaki, Masashi.

In: Physical Review B, Vol. 98, No. 24, 245146, 26.12.2018.

Research output: Contribution to journal › Article › peer-review

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title = "Charge disproportionation of Mn3d and O2p electronic states depending on strength of p-d hybridization in (LaMnO3)2(SrMnO3)2 superlattices",

abstract = "The charge disproportionation of Mn 3d and O 2p electronic states was investigated in two (LaMnO3)2(SrMnO3)2 superlattices using the resonant x-ray scattering technique. The superlattices show significantly different conductivity even with the same composition. The large modulation of the Mn 3d electronic state was observed in the insulating sample, however the charge disproportionation and magnetic modulation of O 2p were shown in the semiconductive sample. It is suggested that the charge modulation appears in either Mn 3d or O 2p, which is strongly related to strength of the p-d hybridization, which is the main factor determining the electric conductivity in the superlattices.",

author = "Hironori Nakao and Chihiro Tabata and Youichi Murakami and Yuichi Yamasaki and Hiroyuki Yamada and Sumio Ishihara and Masashi Kawasaki",

note = "Funding Information: We wish to thank T. Koide, H. Sagayama, R. Kumai, R. Kadono, and T. Arima for useful discussions. We also thank J. Nishimura, A. Ohtomo, and T. Fukumura for providing us the manganite superlattices. This research was partially supported by JSPS KAKENHI Grants (No. 16684008, No. 21224008, No. 25286090, No. JP15H05885 (J-Physics), and No. JP17K05130), the Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST), and the JST, Invitation for Applications for the Strategic Basic Research Programs (CREST). This study has been performed under the Photon Factory Program Advisory Committee (Proposals No. 2009S2-008, No. 2012S2-005, No. 2015G548, and No. 2016PF-BL-19B). Publisher Copyright: {\textcopyright} 2018 American Physical Society.",

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AU - Nakao, Hironori

AU - Tabata, Chihiro

AU - Murakami, Youichi

AU - Yamasaki, Yuichi

AU - Yamada, Hiroyuki

AU - Ishihara, Sumio

AU - Kawasaki, Masashi

N1 - Funding Information: We wish to thank T. Koide, H. Sagayama, R. Kumai, R. Kadono, and T. Arima for useful discussions. We also thank J. Nishimura, A. Ohtomo, and T. Fukumura for providing us the manganite superlattices. This research was partially supported by JSPS KAKENHI Grants (No. 16684008, No. 21224008, No. 25286090, No. JP15H05885 (J-Physics), and No. JP17K05130), the Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST), and the JST, Invitation for Applications for the Strategic Basic Research Programs (CREST). This study has been performed under the Photon Factory Program Advisory Committee (Proposals No. 2009S2-008, No. 2012S2-005, No. 2015G548, and No. 2016PF-BL-19B). Publisher Copyright: © 2018 American Physical Society.

PY - 2018/12/26

Y1 - 2018/12/26

N2 - The charge disproportionation of Mn 3d and O 2p electronic states was investigated in two (LaMnO3)2(SrMnO3)2 superlattices using the resonant x-ray scattering technique. The superlattices show significantly different conductivity even with the same composition. The large modulation of the Mn 3d electronic state was observed in the insulating sample, however the charge disproportionation and magnetic modulation of O 2p were shown in the semiconductive sample. It is suggested that the charge modulation appears in either Mn 3d or O 2p, which is strongly related to strength of the p-d hybridization, which is the main factor determining the electric conductivity in the superlattices.

AB - The charge disproportionation of Mn 3d and O 2p electronic states was investigated in two (LaMnO3)2(SrMnO3)2 superlattices using the resonant x-ray scattering technique. The superlattices show significantly different conductivity even with the same composition. The large modulation of the Mn 3d electronic state was observed in the insulating sample, however the charge disproportionation and magnetic modulation of O 2p were shown in the semiconductive sample. It is suggested that the charge modulation appears in either Mn 3d or O 2p, which is strongly related to strength of the p-d hybridization, which is the main factor determining the electric conductivity in the superlattices.

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Charge disproportionation of Mn3d and O2p electronic states depending on strength of p-d hybridization in (LaMnO3)2(SrMnO3)2 superlattices

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