Photoinduced transient states of antiferromagnetic orderings in La1/3Sr2/3FeO3 and SrFeO3−δ thin films observed through time-resolved resonant soft x-ray scattering

Kohei Yamamoto; Tomoyuki Tsuyama; Suguru Ito; Kou Takubo; Iwao Matsuda; Niko Pontius; Christian Schüßler-Langeheine; Makoto Minohara; Hiroshi Kumigashira; Yuichi Yamasaki; Hironori Nakao; Youichi Murakami; Takayoshi Katase; Toshio Kamiya; Hiroki Wadati

doi:10.1088/1367-2630/ac5f31

New Journal of Physics (Jan 2022)

Photoinduced transient states of antiferromagnetic orderings in La1/3Sr2/3FeO3 and SrFeO3−δ thin films observed through time-resolved resonant soft x-ray scattering

Kohei Yamamoto,
Tomoyuki Tsuyama,
Suguru Ito,
Kou Takubo,
Iwao Matsuda,
Niko Pontius,
Christian Schüßler-Langeheine,
Makoto Minohara,
Hiroshi Kumigashira,
Yuichi Yamasaki,
Hironori Nakao,
Youichi Murakami,
Takayoshi Katase,
Toshio Kamiya,
Hiroki Wadati

Affiliations

Kohei Yamamoto: ORCiD; Institute for Solid State Physics, University of Tokyo , Kashiwanoha, Chiba 277-8581, Japan; Department of Physics, University of Tokyo , Hongo, Tokyo 113-0033, Japan; Institute for Molecular Science , Okazaki, Aichi 444-8585, Japan
Tomoyuki Tsuyama: Institute for Solid State Physics, University of Tokyo , Kashiwanoha, Chiba 277-8581, Japan; Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Hongo, Tokyo 113-8656, Japan
Suguru Ito: Institute for Solid State Physics, University of Tokyo , Kashiwanoha, Chiba 277-8581, Japan; Department of Physics, University of Tokyo , Hongo, Tokyo 113-0033, Japan
Kou Takubo: ORCiD; Institute for Solid State Physics, University of Tokyo , Kashiwanoha, Chiba 277-8581, Japan; Department of Chemistry, Tokyo Institute of Technology , Ookayama, Tokyo 152-8551, Japan
Iwao Matsuda: ORCiD; Institute for Solid State Physics, University of Tokyo , Kashiwanoha, Chiba 277-8581, Japan; Department of Physics, University of Tokyo , Hongo, Tokyo 113-0033, Japan
Niko Pontius: ORCiD; Helmholtz Zentrum-Berlin für Materialien und Energie GmbH , Albert-Einstein-Straße 15, 12489 Berlin, Germany
Christian Schüßler-Langeheine: ORCiD; Helmholtz Zentrum-Berlin für Materialien und Energie GmbH , Albert-Einstein-Straße 15, 12489 Berlin, Germany
Makoto Minohara: ORCiD; Photon Factory, Institute of Materials Structure Science , High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba 305-0801, Japan; Research Institute for Advanced Electronics and Photonics, National Institute of Advanced Industrial Science and Technology (AIST) , Tsukuba, Ibaraki 305-8568, Japan
Hiroshi Kumigashira: ORCiD; Photon Factory, Institute of Materials Structure Science , High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba 305-0801, Japan; Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University , Sendai 980-8577, Japan
Yuichi Yamasaki: Photon Factory, Institute of Materials Structure Science , High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba 305-0801, Japan; National Institute for Materials Science (NIMS) , Tsukuba 305-0047, Japan; PRESTO, Japan Science and Technology Agency (JST) , Saitama 332-0012, Japan; RIKEN Center for Emergent Matter Science (CEMS) , Wako 351-0198, Japan
Hironori Nakao: ORCiD; Photon Factory, Institute of Materials Structure Science , High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba 305-0801, Japan
Youichi Murakami: Photon Factory, Institute of Materials Structure Science , High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba 305-0801, Japan
Takayoshi Katase: ORCiD; Laboratory for Materials and Structures, Tokyo Institute of Technology , 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
Toshio Kamiya: Laboratory for Materials and Structures, Tokyo Institute of Technology , 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
Hiroki Wadati: ORCiD; Institute for Solid State Physics, University of Tokyo , Kashiwanoha, Chiba 277-8581, Japan; Department of Physics, University of Tokyo , Hongo, Tokyo 113-0033, Japan; Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Hongo, Tokyo 113-8656, Japan; Department of Material Science, Graduate School of Science, University of Hyogo, Ako, Hyogo 678-1297, Japan; Institute of Laser Engineering, Osaka University , Suita, Osaka 565-0871, Japan

DOI: https://doi.org/10.1088/1367-2630/ac5f31
Journal volume & issue: Vol. 24, no. 4
p. 043012

Abstract

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The relationship between the magnetic interaction and photoinduced dynamics in antiferromagnetic perovskites is investigated in this study. In La _1/3 Sr _2/3 FeO _3 thin films, commensurate spin ordering is accompanied by charge disproportionation, whereas SrFeO _3− _δ thin films show incommensurate helical antiferromagnetic spin ordering due to increased ferromagnetic coupling compared to La _1/3 Sr _2/3 FeO _3 . To understand the photoinduced spin dynamics in these materials, we investigate the spin ordering through time-resolved resonant soft x-ray scattering. In La _1/3 Sr _2/3 FeO _3 , ultrafast quenching of the magnetic ordering within 130 fs through a nonthermal process is observed, triggered by charge transfer between the Fe atoms. We compare this to the photoinduced dynamics of the helical magnetic ordering of SrFeO _3− _δ . We find that the change in the magnetic coupling through optically induced charge transfer can offer an even more efficient channel for spin-order manipulation.

Published in New Journal of Physics

ISSN: 1367-2630 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Physics
Website: https://iopscience.iop.org/journal/1367-2630

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