Research theme for competitive and other funds (6)：
2021 - 2024 高精度万能旋光計の原理を取り入れた光イメージング装置の開発
2015 - 2017 Observation of electric and magnetic domains by using birefringence imaging system
2013 - 2015 Observation of phase transition using optical birefringence of imaging system
2012 - 2014 Decontamination possibility of radioactive materials by magnetic field and iron-bacteria bonding
2010 - 2011 三角スピンチューブにおける新奇な磁気状態の解明
低次元遷移金属化合物の磁性と構造
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Papers (57)：
Hirotaka Manaka, Kensei Toyoda, Yoko Miura. Multivariate temperature-series analysis of stress-induced ferroelectricity in SrTiO 3 : a machine learning approach with K -shape clustering and hierarchical Bayesian estimation. Science and Technology of Advanced Materials: Methods. 2024. 4. 1. 2342234(1)-2342234(19)
Kensei Toyoda, Hirotaka Manaka, Yoko Miura. Improvements of birefringence imaging techniques to observe stress-induced ferroelectricity in SrTiO 3 based on K -means clustering with circular statistics. Science and Technology of Advanced Materials: Methods. 2023. 3. 1. 2278322(1)-2278322(11)
Yoko Miura, Ryusei Ibushi, Hirotaka Manaka. Observation of Ferroelectricity in Two-Dimensional Antiferromagnet (C2H5NH3)2CuCl4 Using Birefringence Imaging Techniques. Proceedings of the 29th International Conference on Low Temperature Physics (LT29). 2023. 38. 011142(1)-011142(6)
Hirotaka Manaka, Koki Uetsubara, Yoko Miura. Stress-Induced Ferroelectricity in Quantum Paraelectric SrTiO3 Observed by Birefringence Imaging. Proceedings of the 29th International Conference on Low Temperature Physics (LT29). 2023. 38. 011112(1)-011112(6)
Hirotaka Manaka, Kazuya Okumura, Keishi Tokunaga, Ryusei Ibushi, Yoko Miura. Observations of Successive Local-Structure and Ferroelectric Phase Transitions in (C2H5NH3)2CuCl4 Using Birefringence Imaging and Electron Paramagnetic Resonance Spectroscopy. Journal of the Physical Society of Japan. 2022. 91. 11. 114701(1)-114701(10)
