Kenji Hirata, Kodai Niitsu, Sri Ayu Anggraini, Taisuke Kageura, Masato Uehara, Hiroshi Yamada, Morito Akiyama. Enhancing the piezoelectric performance of nitride thin films through interfacial engineering. Materials Today. 2025. 83. 85-95
Sri Ayu Anggraini, Masato Uehara, Kenji Hirata, Taisei Motomura, Hiroshi Yamada, Morito Akiyama. Effect of Si addition on polarity inversion in scandium aluminum nitride piezoelectric thin films. Scripta Materialia. 2025
Masato Uehara, Kenji Hirata, Yoshiko Nakamura, Sri Ayu Anggraini, Kazuki Okamoto, Hiroshi Yamada, Hiroshi Funakubo, Morito Akiyama. Excellent piezoelectric and ferroelectric properties of ScxGa1-xN alloy with high Sc concentration. APL Materials. 2024
Soichiro Kawana, Kenji Hirata, Yuki Fujio, Tomoki Uchiyama, Chao-Nan Xu. First-Principles Calculation of Elastic Properties in LixZn1-xO:Nd3+ Mechanoluminescence Material. Advanced Theory and Simulations. 2024
Kenji Hirata, Yu Ikemoto, Masato Uehara, Hiroshi Yamada, Sri Ayu Anggraini, Morito Akiyama. Effect of phase transition on the piezoelectric properties of scandium-alloyed gallium nitride. Journal of Applied Physics. 2024