Ryugaku Jinja · Professor Archive
Public Professor Archive
伊藤 昌和伊藤 昌和
Kagoshima University · Integrated Education Division, Integrated Science Domain
- Publications
- 4
- Projects
- 4
- Keywords
- 7
留学
神社Kagoshima University · Integrated Education Division, Integrated Science Domain
Research keywordsmagnetic materials・Heusler alloys・magnetocaloric effect・thermodynamic properties・transport properties・high magnetic fields・martensitic transition
This is a public-data preview. Personalized fit, contact angles, and saved workflows require sign-in.
- Ito M., Onda K., Matsuo A., Kindo K. . Magnetic properties of the Co-doped MnNiGe system in high magnetic field . Physica B: Condensed Matter 688 2024年9月 詳細を見る 記述言語: 英2024 · 記述言語: 英語 掲載種別: 研究論文(学術雑誌) 出版者・発行元: Physica B: Condensed Matter High-field magnetic properties of the Co-doped MnNiGe system, Mn0.9Co0.1NiGe, which undergoes a ferromagnetic and structural phase transition at Tt= 215 K, were investigated. Additionally, first-principles calculations were performed on Mn0.875Co0.125NiGe. The magnetic field, μ0H, dependence of magnetization, M(μ0H), of Mn0.9Co0.1NiGe saturates at ∼73 A⋅m2 ⋅kg−1 below Tt and shows significant hysteresis in the range of 215 ≤T≤ 230 K due to the magnetic-field-induced structural phase transition. The isothermal magnetic entropy change, ΔS, peaks around Tt, reaches -79.7 J⋅K−1 ⋅kg−1 for Δμ0H = 30 T. The density of states (DOS) calculated for Mn0.875Co0.125NiGe in the paramagnetic-hexagonal phase (Tt<T) exhibits a peak at the Fermi energy, EF, with significant contributions from the Mn 3d orbitals. In the ferromagnetic-orthorhombic phase, DOS at EF is suppressed, indicating that the structural phase transition at Tt in this system is primarily driven by the band Jahn-Teller effect. DOI: 10.1016/j.physb.2024.416151 Scopus
- 伊藤昌和 川端訓代 大野裕史 冨山清升 . 「数理・データサイエンス・AI教育プログラム:リテラシーレベル」に対する 鹿児島大学の取り組みについて . 第70回九州地区大学教育研究協議会発表論文集 2023年 詳細を見る 担当区分: 筆頭著者, 責任著者2023 · 担当区分: 筆頭著者, 責任著者
- 伊藤昌和 川端訓代 大野裕史 冨山清升2023 · 担当区分: 筆頭著者, 責任著者
- Masakazu Ito, Keita Sakai, Yusuke Imamura, Ryota Kashima2023 · 担当区分: 筆頭著者, 責任著者
Next stepSign in for fit and contact guidance
Personalized fit, contact angles, and saved workflows require sign-in.