| First-principles study on hydrogen diffusivity in BCC, FCC, and HCP iron K Hirata, S Iikubo, M Koyama, K Tsuzaki, H Ohtani Metallurgical and materials transactions A 49, 5015-5022, 2018 | 74 | 2018 |
| First-principles study of piezoelectric properties and bonding analysis in (Mg, X, Al) N solid solutions (X= Nb, Ti, Zr, Hf) K Hirata, H Yamada, M Uehara, SA Anggraini, M Akiyama ACS omega 4 (12), 15081-15086, 2019 | 39 | 2019 |
| First-principles calculations of spontaneous polarization in ScAlN K Furuta, K Hirata, SA Anggraini, M Akiyama, M Uehara, H Yamada Journal of Applied Physics 130 (2), 2021 | 36 | 2021 |
| Martensitic transformation and superelasticity in off-stoichiometric Co2Cr (AlSi) Heusler alloys K Hirata, X Xu, T Omori, M Nagasako, R Kainuma Journal of Alloys and Compounds 642, 200-203, 2015 | 30 | 2015 |
| Polarity inversion of aluminum nitride thin films by using Si and MgSi dopants SA Anggraini, M Uehara, K Hirata, H Yamada, M Akiyama Scientific Reports 10 (1), 4369, 2020 | 29 | 2020 |
| Preparation of YbAlN piezoelectric thin film by sputtering and influence of Yb concentration on properties and crystal structure M Uehara, Y Amano, SA Anggraini, K Hirata, H Yamada, M Akiyama Ceramics International 47 (11), 16029-16036, 2021 | 20 | 2021 |
| Significant enhancement of piezoelectric response in AlN by Yb addition K Hirata, Y Mori, H Yamada, M Uehara, SA Anggraini, M Akiyama Materials 14 (2), 309, 2021 | 20 | 2021 |
| Flexible and tough superelastic Co–Cr alloys for biomedical applications T Odaira, S Xu, K Hirata, X Xu, T Omori, K Ueki, K Ueda, T Narushima, ... Advanced Materials 34 (27), 2202305, 2022 | 17 | 2022 |
| Effects of different divalent cations in mTi-based codopants (m= Mg or Zn) on the piezoelectric properties of AlN thin films SA Anggraini, M Uehara, K Hirata, H Yamada, M Akiyama Ceramics International 46 (3), 4015-4019, 2020 | 17 | 2020 |
| An unconventional hydrogen effect that suppresses thermal formation of the hcp phase in fcc steels M Koyama, K Hirata, Y Abe, A Mitsuda, S Iikubo, K Tsuzaki Scientific reports 8 (1), 16136, 2018 | 17 | 2018 |
| Enhancement of piezoelectric property in MgTMAlN (TM= Cr, Mo, W): First-principles study K Hirata, H Yamada, M Uehara, SA Anggraini, M Akiyama Journal of Physics and Chemistry of Solids 152, 109913, 2021 | 14 | 2021 |
| Thermodynamic assessment of Fe–Ti–S ternary phase diagram K Hirata, S Iikubo, H Fujimoto, H Ohtani Calphad 57, 62-77, 2017 | 8 | 2017 |
| Thermodynamic assessment of the Al–Sc–N ternary system and phase-separated region of the strained wurtzite phase K Hirata, K Shobu, H Yamada, M Uehara, SA Anggraini, M Akiyama Journal of the European Ceramic Society 40 (15), 5410-5422, 2020 | 7 | 2020 |
| Enhancement in piezoelectric responses of AlN thin films by co-addition of Mg and Ta SA Anggraini, M Uehara, K Hirata, H Yamada, M Akiyama Materials Chemistry and Physics 276, 125394, 2022 | 5 | 2022 |
| First-principles calculations of the effects of Mn, Cr, and Ni on hydrogen diffusion in BCC, FCC, and HCP Fe K Hirata, S Iikubo, H Ohtani Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan 105 (2 …, 2019 | 4 | 2019 |
| High electro-mechanical coupling coefficient SAW device with ScAlN on diamond K Hatashita, T Tsuchiya, M Okazaki, M Nakano, SA Anggraini, K Hirata, ... Japanese journal of applied physics 62 (2), 021003, 2023 | 2 | 2023 |
| Spontaneous Polarization and Polarization-Induced Electron Sheet Charge of YbAlN on GaN: A First-Principles Study K Hirata, S Kawano, H Yamada, M Uehara, SA Anggraini, M Akiyama ACS Applied Electronic Materials 4 (9), 4772-4780, 2022 | 2 | 2022 |
| Phase stability and magnetic properties in Co2Cr (Al, Si) shape memory alloys K Hirata, X Xu, T Omori, R Kainuma Journal of Magnetism and Magnetic Materials 500, 166311, 2020 | 2 | 2020 |
| Significant Enhancement of Piezoelectric Response in AlN by Yb Addition. Materials 2021, 14 (2), 309 K Hirata, Y Mori, H Yamada, M Uehara, SA Anggraini, M Akiyama | 2 | |
| Significant Enhancement of Piezoelectric Response in AlN by Yb Addition. Materials 2021, 14, 309 K Hirata, Y Mori, H Yamada, M Uehara, SA Anggraini, M Akiyama s Note: MDPI stays neu-tral with regard to jurisdictional clai-ms in …, 2021 | 1 | 2021 |
