Experimental elucidation: Microscopic mechanism of resonant X-ray scattering in manganite films

Hiroyuki Ohsumi; Yoichi Murakami; Takashi Kiyama; Hironori Nakao; Masato Kubota; Yusuke Wakabayashi; Yoshinori Konishi; Makoto Izumi; Masashi Kawasaki; Yoshinori Tokura

doi:10.1143/JPSJ.72.1006

Experimental elucidation: Microscopic mechanism of resonant X-ray scattering in manganite films

Hiroyuki Ohsumi, Yoichi Murakami, Takashi Kiyama, Hironori Nakao, Masato Kubota, Yusuke Wakabayashi, Yoshinori Konishi, Makoto Izumi, Masashi Kawasaki, Yoshinori Tokura

SCI - Physics

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

21 Citations (Scopus)

Abstract

Resonant X-ray scattering experiments have been performed on perovskite manganite La_0.5Sr_0.5MnO₃ thin films, which are grown on three distinct perovskite substrates with a coherent epitaxial strain and have a forced ferro-type orbital ordering of Mn 3d orbitals. Using an interference technique, we have successfully observed the resonant X-ray scattering signal from the system having the ferro-type orbital ordering and also revealed the energy scheme of Mn 4p bands. For the forced ferro-type orbital ordering system, the present results evidence that the resonant X-ray scattering signal originates from the band structure effect due to the Jahn-Teller distortion of a MnO₆ octahedron, and not from the Coulomb interaction between 3d and 4p electrons.

Original language	English
Pages (from-to)	1006-1009
Number of pages	4
Journal	Journal of the Physical Society of Japan
Volume	72
Issue number	5
DOIs	https://doi.org/10.1143/JPSJ.72.1006
Publication status	Published - 2003 May

Keywords

Epitaxial strain
Manganite
Orbital ordering
Resonant X-ray scattering
Thin film

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title = "Experimental elucidation: Microscopic mechanism of resonant X-ray scattering in manganite films",

abstract = "Resonant X-ray scattering experiments have been performed on perovskite manganite La0.5Sr0.5MnO3 thin films, which are grown on three distinct perovskite substrates with a coherent epitaxial strain and have a forced ferro-type orbital ordering of Mn 3d orbitals. Using an interference technique, we have successfully observed the resonant X-ray scattering signal from the system having the ferro-type orbital ordering and also revealed the energy scheme of Mn 4p bands. For the forced ferro-type orbital ordering system, the present results evidence that the resonant X-ray scattering signal originates from the band structure effect due to the Jahn-Teller distortion of a MnO6 octahedron, and not from the Coulomb interaction between 3d and 4p electrons.",

keywords = "Epitaxial strain, Manganite, Orbital ordering, Resonant X-ray scattering, Thin film",

author = "Hiroyuki Ohsumi and Yoichi Murakami and Takashi Kiyama and Hironori Nakao and Masato Kubota and Yusuke Wakabayashi and Yoshinori Konishi and Makoto Izumi and Masashi Kawasaki and Yoshinori Tokura",

year = "2003",

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T2 - Microscopic mechanism of resonant X-ray scattering in manganite films

AU - Ohsumi, Hiroyuki

AU - Murakami, Yoichi

AU - Kiyama, Takashi

AU - Nakao, Hironori

AU - Kubota, Masato

AU - Wakabayashi, Yusuke

AU - Konishi, Yoshinori

AU - Izumi, Makoto

AU - Kawasaki, Masashi

AU - Tokura, Yoshinori

PY - 2003/5

Y1 - 2003/5

N2 - Resonant X-ray scattering experiments have been performed on perovskite manganite La0.5Sr0.5MnO3 thin films, which are grown on three distinct perovskite substrates with a coherent epitaxial strain and have a forced ferro-type orbital ordering of Mn 3d orbitals. Using an interference technique, we have successfully observed the resonant X-ray scattering signal from the system having the ferro-type orbital ordering and also revealed the energy scheme of Mn 4p bands. For the forced ferro-type orbital ordering system, the present results evidence that the resonant X-ray scattering signal originates from the band structure effect due to the Jahn-Teller distortion of a MnO6 octahedron, and not from the Coulomb interaction between 3d and 4p electrons.

AB - Resonant X-ray scattering experiments have been performed on perovskite manganite La0.5Sr0.5MnO3 thin films, which are grown on three distinct perovskite substrates with a coherent epitaxial strain and have a forced ferro-type orbital ordering of Mn 3d orbitals. Using an interference technique, we have successfully observed the resonant X-ray scattering signal from the system having the ferro-type orbital ordering and also revealed the energy scheme of Mn 4p bands. For the forced ferro-type orbital ordering system, the present results evidence that the resonant X-ray scattering signal originates from the band structure effect due to the Jahn-Teller distortion of a MnO6 octahedron, and not from the Coulomb interaction between 3d and 4p electrons.

KW - Epitaxial strain

KW - Manganite

KW - Orbital ordering

KW - Resonant X-ray scattering

KW - Thin film

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JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

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Experimental elucidation: Microscopic mechanism of resonant X-ray scattering in manganite films

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Keywords

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