Phase-separated state in the bilayer manganite investigated by scanning-type resonant soft X-ray scattering
Abstract Phase separation between the CE-type charge-orbital ordered (CE) phase and the A-type antiferromagnetic ordered (A-AF) phase has been investigated in the bilayer manganite, La 2-2 x Sr 1+2 x Mn 2 O 7 ( x = 0.51), by resonant soft X-ray scattering (RSXS) at the Mn L 2,3 edge. The order parameters of CE and A-AF phases were measured at 1/4 1/4 0 and 0 0 1 reflections, respectively, and the phase separation was observed at the intermediate temperature region. Using a scanning-type RSXS with an X-ray focused by a Fresnel zone plate, the real-space images of domains for both the competing CE-phase and A-AF-phase were successfully observed. In the phase-separated state, we revealed that the domain of the CE phase forms a stripe pattern, and it seems to originate from the inhomogeneity of the chemical composition on sample.
Authors
- Masaichiro Mizumaki (ORCID: https://orcid.org/0000-0002-7625-6665)
- Hironori Nakao (ORCID: https://orcid.org/0000-0003-4020-537X)
- H. Kuwahara (ORCID: https://orcid.org/0000-0001-9259-0500)
- T. Saitoh (ORCID: https://orcid.org/0000-0002-2699-2381)
- Yuichi Yamasaki (ORCID: https://orcid.org/0000-0002-8560-3462)
- Y Sawata
Institutions
- High Energy Accelerator Research Organization (JP)
- Tokyo University of Science (JP)
- Kumamoto Health Science University (JP)
- National Institute for Materials Science (JP)
- Sophia University (JP)
- Kumamoto University (JP)
Publication Details
- Journal
- Journal of Physics Conference Series
- Published
- 2025-05-01
- DOI
- https://doi.org/10.1088/1742-6596/3010/1/012159
- Primary Topic
- Magnetic and transport properties of perovskites and related materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00