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Ionic order and magnetic properties of double-perovskite GdBaCo2O5.5 films on SrTiO3 substrates
| Title: | Ionic order and magnetic properties of double-perovskite GdBaCo2O5.5 films on SrTiO3 substrates |
| Authors: | Katayama, Tsukasa Browse this author →KAKEN DB | | Chikamatsu, Akira Browse this author →KAKEN DB | | Hasegawa, Tetsuya Browse this author →KAKEN DB |
| Keywords: | Key-words | | Double perovskite oxide | | Epitaxial thin film |
| Issue Date: | Jul-2022 |
| Publisher: | 社団法人 日本セラミックス協会(The Ceramic Society of Japan) |
| Journal Title: | Journal of the Ceramic Society of Japan |
| Volume: | 130 |
| Issue: | 7 |
| Start Page: | 429 |
| End Page: | 431 |
| Publisher DOI: | 10.2109/jcersj2.21174 |
| Abstract: | Double-perovskite GdBaCo2O5.5 epitaxial films were fabricated on SrTiO3(001) substrates. X-ray diffraction and scanning transmission electron microscopy measurements of a 37 nm thick film confirmed the ionic order of Gd and Ba along the out-of-plane direction. The Gd/Ba order was absent within the region 1 nm from the film/ substrate interface owing to the migration of Sr ions from the substrate. Unlike the 37 nm thick film, a thin film with a thickness of 10 nm did not show a distinct antiferromagnetic to ferromagnetic (FM) transition, whereas large magnetization was observed at low temperature. This was proposed to be because the cation-disordered phase near the interface was FM, even at low temperatures. ??2022 The Ceramic Society of Japan. All rights reserved. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/86356 |
| Appears in Collections: | 電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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