8 records found.
Probing of Polarization Reversal in Ferroelectric (Al,Sc)N Films Using Single‐ and Tri‐Layered Structures With Different Sc/(Al+Sc) Ratio
- Journal article
- Creator
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;Shinnosuke Yasuoka (author) (Search by this author)Takao Shimizu (author) (Search by this author)National Institute for Materials Science
;
;Kazuki Okamoto (author) (Search by this author);Nana Sun (author) (Search by this author);Soshun Doko (author) (Search by this author);Naoko Matsui (author) (Search by this author);Toshikazu Irisawa (author) (Search by this author);Koji Tsunekawa (author) (Search by this author);Alexei Gruverman (author) (Search by this author)Hiroshi Funakubo (author) (Search by this author) - Keyword
- Ferroelectric, (Al,Sc)N Films, Wurtzite
- Date published
- 2024-10-13
- Updated at
- 2025-12-18 16:26:41 +0900
Changes in the electronic structure of due to ferroelectric phase transition investigated via polarization-dependent hard x-ray photoemission spectroscopy
- Journal article
- Creator
-
Takeo Ohsawa (author) (Search by this author)
;
Shigenori Ueda (author) (Search by this author)
;
Takao Shimizu (author) (Search by this author)
;
Naoki Ohashi (author) (Search by this author)
- Keyword
- Ferroelectricity, Barium titanate, Hard x-ray photoemission spectroscopy, Ferroelectric phase transition
- Date published
- 2025-04-25
- Updated at
- 2025-05-01 12:30:11 +0900
Lattice deformation and phase transition of aluminum nitride studied by density functional theory calculations
- Journal article
- Creator
-
;Kota Hasegawa (author) (Search by this author)Takao Shimizu (author) (Search by this author)National Institute for Materials Science
;
Naoki Ohashi (author) (Search by this author)National Institute for Materials Science
- Keyword
- AlN, DFT, Strain, Stress, Ferrorlrctricity
- Date published
- 2022-07-01
- Updated at
- 2025-04-14 16:30:59 +0900
<i>In-plane</i> lattice orientation in aluminum scandium nitride epitaxial films deposited on Nb-doped SrTiO<sub>3</sub>(111) substrates via reactive magnetron sputtering
- Journal article
- Creator
-
;Kota Hasegawa (author) (Search by this author)Takao Shimizu (author) (Search by this author)National Institute for Materials Science
;
Naoki Ohashi (author) (Search by this author)National Institute for Materials Science
- Keyword
- (Al,Sc)N, Epitaxial films, magnetron sputtering, strontium titanate, lattice mismatch, lattice orientation, Scandium Aluminate
- Date published
- 2023-07-01
- Updated at
- 2025-04-14 16:30:51 +0900
Phase Identification of 850 nm Thick 7%YO1.5–93%HfO2 Films by Surface and Cross-Sectional Raman Spectroscopies
- Journal article
- Creator
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;Takanori Mimura (author) (Search by this author);Yuma Takahashi (author) (Search by this author);Takahisa Shiraishi (author) (Search by this author);Masanori Kodera (author) (Search by this author);Reijiro Shimura (author) (Search by this author);Keisuke Ishihama (author) (Search by this author);Kazuki Okamoto (author) (Search by this author);Hiroki Moriwake (author) (Search by this author);Ayako Taguchi (author) (Search by this author)Takao Shimizu (author) (Search by this author)National Institute for Materials Science
;
;Yasuhiro Fujii (author) (Search by this author);Akitoshi Koreeda (author) (Search by this author)Hiroshi Funakubo (author) (Search by this author)
- Keyword
- Raman spectroscopy, field-induced phase transition, Multiple phase, HfO2-based ferroelectric film
- Date published
- 2024-04-23
- Updated at
- 2024-12-24 13:59:01 +0900
Domain structures of PbTiO3 and Pb(Zr,Ti)O3 thin films controlled by tensile strain induced by a Sr(Zr,Ti)O3 buffer layer
- Journal article
- Creator
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;Tomohide Morikawa (author) (Search by this author)Masanori Kodera (author) (Search by this author)
https://orcid.org/0000-0002-1167-5850
(unauthenticated)
;
Takao Shimizu (author) (Search by this author)
;
Keisuke Ishihama (author) (Search by this author)
https://orcid.org/0000-0003-0798-8384
(unauthenticated)
;
Yoshitaka Ehara (author) (Search by this author)
https://orcid.org/0000-0002-0761-4748
(unauthenticated)
;
Osami Sakata (author) (Search by this author)
https://orcid.org/0000-0003-2626-0161
(unauthenticated)
;
Hiroshi Funakubo (author) (Search by this author)
https://orcid.org/0000-0002-1106-200X
(unauthenticated)
- Keyword
- Epitaxy, Ferroelectric domain, PZT, Tensile strain
- Date published
- 2024-01-15
- Updated at
- 2024-12-24 13:58:47 +0900
Achieving High Piezoelectric Performance across a Wide Composition Range in Tetragonal (Bi,Na)TiO3–BaTiO3 Films for Micro-electromechanical Systems
- Journal article
- Creator
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;Keisuke Ishihama (author) (Search by this author)Takao Shimizu (author) (Search by this author)National Institute for Materials Science
;
;Kazuki Okamoto (author) (Search by this author);Akinori Tateyama (author) (Search by this author);Wakiko Yamaoka (author) (Search by this author);Risako Tsurumaru (author) (Search by this author);Shintaro Yoshimura (author) (Search by this author);Yusuke Sato (author) (Search by this author)Hiroshi Funakubo (author) (Search by this author)
- Keyword
- Pb-free Piezoelectric film, domain switching, out-of-morphotropic phase boundary composition, tetragonal structure
- Date published
- 2024-01-10
- Updated at
- 2024-12-24 13:58:44 +0900
Strain Control of (001)-Polar-Axis-Oriented Epitaxial Y-Doped HfO2 Thin Films
- Journal article
- Creator
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;Yoshiki Maekawa (author) (Search by this author);Koji Hirai (author) (Search by this author);Kazuki Okamoto (author) (Search by this author)Takao Shimizu (author) (Search by this author)National Institute for Materials Science
;
Hiroshi Funakubo (author) (Search by this author)
- Keyword
- Ferroelectric HfO2-based film, Epitaxial film, {100} Orientation control, Polar axis orientation, Pulse laser deposition
- Date published
- 2024-07-25
- Updated at
- 2024-12-24 13:58:35 +0900