TY - JOUR
T1 - Photoinduced transient states of antiferromagnetic orderings in La1/3Sr2/3FeO3and SrFeO3- δ thin films observed through time-resolved resonant soft x-ray scattering
AU - Yamamoto, Kohei
AU - Tsuyama, Tomoyuki
AU - Ito, Suguru
AU - Takubo, Kou
AU - Matsuda, Iwao
AU - Pontius, Niko
AU - Schüßler-Langeheine, Christian
AU - Minohara, Makoto
AU - Kumigashira, Hiroshi
AU - Yamasaki, Yuichi
AU - Nakao, Hironori
AU - Murakami, Youichi
AU - Katase, Takayoshi
AU - Kamiya, Toshio
AU - Wadati, Hiroki
N1 - Funding Information:
We thank Yasuyuki Hirata for the productive discussions and HZB for the allocation of the synchrotron radiation beamtime, Karsten Holldack and Rolf Mitzner for experimental support. This work was performed under the approval of the Photon Factory Program Advisory Committee (Proposal Nos. 2016PF-BL-19B, 2015G556, 2015S2-007, 2013G058, 2013G661). This work was partially supported by the Japan Society for the Promotion of Science (JSPS) KAKENHI Grant Nos. 19H05824, 19H01816, 19K23430, and 17K14334, and the MEXT Quantum Leap Flagship Program (MEXT Q-LEAP) Grant No. JPMXS0118068681. KY acknowledges the support from the ALPS program of the University of Tokyo.
Publisher Copyright:
© 2022 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft.
PY - 2022/4/1
Y1 - 2022/4/1
N2 - The relationship between the magnetic interaction and photoinduced dynamics in antiferromagnetic perovskites is investigated in this study. In La1/3Sr2/3FeO3 thin films, commensurate spin ordering is accompanied by charge disproportionation, whereas SrFeO3-δ thin films show incommensurate helical antiferromagnetic spin ordering due to increased ferromagnetic coupling compared to La1/3Sr2/3FeO3. To understand the photoinduced spin dynamics in these materials, we investigate the spin ordering through time-resolved resonant soft x-ray scattering. In La1/3Sr2/3FeO3, 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 SrFeO3-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.
AB - The relationship between the magnetic interaction and photoinduced dynamics in antiferromagnetic perovskites is investigated in this study. In La1/3Sr2/3FeO3 thin films, commensurate spin ordering is accompanied by charge disproportionation, whereas SrFeO3-δ thin films show incommensurate helical antiferromagnetic spin ordering due to increased ferromagnetic coupling compared to La1/3Sr2/3FeO3. To understand the photoinduced spin dynamics in these materials, we investigate the spin ordering through time-resolved resonant soft x-ray scattering. In La1/3Sr2/3FeO3, 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 SrFeO3-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.
KW - antiferromagnetic ordering
KW - synchrotron radiation
KW - time-resolved resonant soft x-ray scattering
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U2 - 10.1088/1367-2630/ac5f31
DO - 10.1088/1367-2630/ac5f31
M3 - Article
AN - SCOPUS:85129098933
SN - 1367-2630
VL - 24
JO - New Journal of Physics
JF - New Journal of Physics
IS - 4
M1 - 043012
ER -