Papers - YAMADA Tomoaki
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Thickness Dependence of the Electro-optic Properties in Epitaxial Hf0.5Zr0.5O2 Thin Films: Evident Response Down to 3 nm Reviewed
A. Dastgir, X. Yuan, Y. Shen, D. Kan, Y. Shimakawa, H. Sawaki, S. Kondo, and T. Yamada
Applied Physics Letters Vol. 126 page： 242901-1-5 2025.6
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Distinct Roles of Mg and Li in Affecting the Electro-optic Properties of Wurtzite ZnO Thin Films Reviewed International coauthorship
L. Meng, X. Yuan, J. Gao, W. Liu, T. Zhai, and T. Yamada
Applied Physics Letters Vol. 126 page： 172902-1-5 2025.4
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Ultrathin Freestanding Membranes of ZrO2 with Metastable Structures and Strain-dependent Electrical Properties Reviewed International coauthorship
Y. Shen, K. Ooe, K. Shitara, S. Kobayashi, T. Yoshimura, T. Yamada, L. Xie, Y. Shimakawa, and D. Kan
Physical Review Materials Vol. 9 page： 024411-1-9 2025.2
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Dynamic Domain Motion Enhancing Electro-optic Performance in Ferroelectric Films Reviewed
S. Kondo, K. Okamoto, O. Sakata, T. Teranishi, A. Kishimoto, T. Nagasaki, and T. Yamada
Applied Physics Letters Vol. 126 page： 012901-1-7 2025.1
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Static Disorder in Perovskite-type Proton-conducting Oxides BaSn1-xMxO3-x/2-(y/2)H2O (M = Ga, Sc, In, Y, La): A Novel Approach Based on Statistical Analysis of Numerous DFT Simulated Structures Reviewed
T. Nagasaki and T. Yamada
Physical Chemistry Chemical Physics Vol. 26 page： 26497 - 26516 2024.9
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Effect of Li Concentration on Second Harmonic Generation from Widegap ZnMgO Thin Films Reviewed International coauthorship International journal
L. Meng, X. Yuan, J. Gao, W. Liu, X. Yang, T. Zhai, and T. Yamada
Japanese Journal of Applied Physics Vol. 63 page： 08SP05-1-5 2024.8
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Ferroelectric Freestanding Hafnia Membranes with Metastable Rhombohedral Structure Down to 1-nm-thick Reviewed
Y. Shen, K. Ooe, X. Yuan, T. Yamada, S. Kobayashi, M. Haruta, D. Kan, and Y. Shimakawa
Nature Communications Vol. 15 page： 4789 2024.6
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Novel Route for Enhancing Piezoelectricity of Ferroelectric Films: Controlling Nontrivial Polarization States in Pb(Zr, Ti)O3 Monodomain Superlattice Structure Reviewed International coauthorship
J. Song, Y. Ebihara, P. Yudin, O. Sakata, H. Morioka, T. Kiguchi, S. Kondo, X. Yuan, S. Okamura, M. Yoshino, T. Nagasaki, and T. Yamada
ACS Applied Materials & Interfaces Vol. 16 page： 16145 - 16151 2024.3
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In Situ X-ray Diffraction Analysis of Intrinsic and Extrinsic Piezoelectric Response in (100)/(001)-oriented Tetragonal Multidomain Pb(Zr, Ti)O3 Films Epitaxially Grown on Si Substrates Reviewed
M. Nakahata, K. Okamoto, K. Ishihama, T. Yamada, and H. Funakubo
Japanese Journal of Applied Physics Vol. 62 page： SM1020-1-7 2023.11
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Extraordinarily Large Contribution Ratio of Ferroelastic Domain Switching to Piezoresponse in Monoclinic (K, Na)NbO3 Films Reviewed
X. Yuan, K. Okamoto, M. Kawano, M. Yoshino, T. Nagasaki, Y. Imai, O. Sakata, and T. Yamada
Advanced Electronic Materials Vol. 10 page： 2300405 2023.10
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Film Thickness Dependence of In-plane Ferroelastic Domain Structure in Constrained Tetragonal PbTiO3 Films Induced by Isotropic Tensile Strain Reviewed International journal
Y. Ehara, T. Nakashima, D. Ichinose, T. Shimizu, T. Shiraishi, O. Sakata, T. Yamada, S. Yasui, K. Nishida, and H. Funakubo
Applied Physics Letters Vol. 121 ( 26 ) page： 262901-1-7 2022.12
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Deformation of Substrate by Epitaxial Piezoelectric Film and Implications for Interferometry Reviewed International coauthorship International journal
P. Yudin, K. Okamoto, T. Yamada, and M. Tyunina
International Journal of Solids and Structures Vol. 262 page： 112048-1-8 2022.11
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Dynamic Electrical Response of Vortex Polarization in (Pb0.9Sr0.1)TiO3/SrTiO3 Artificial Superlattice Thin Films Reviewed
J. Song, Y. Iguchi, K. Okamoto, O. Sakata, M. Yoshino, T. Nagasaki, and T. Yamada
Applied Physics Letters Vol. 121 page： 172904-1-5 2022.10
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Strong Electro-optic Effect in Mg Incorporated ZnO Thin Films Reviewed International coauthorship
X. Yuan, T. Yamada, and L. Meng
Applied Physics Letters Vol. 121 page： 152903-1-5 2022.10
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Effect of Ni Doping on the Electro-optic Property in K(Ta0.6Nb0.4)O3 Films Reviewed
X. Yuan, Y. Sakurai, S. Kondo, M. Yoshino, T. Nagasaki, and T. Yamada
Japanese Journal of Applied Physics Vol. 61 page： SN1005-1-5 2022.7
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Optimizing the Growth of K(Ta0.6Nb0.4)O3 Films using Pulsed Laser Deposition and their Electro-optic Property Reviewed
Y. Sakurai, X. Yuan, S. Kondo, M. Yoshino, T. Nagasaki, and T. Yamada
Journal of the Ceramic Society of Japan Vol. 130 page： 424-428 2022.7
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Unraveling the Reasons Behind Lead Phthalocyanine Acting As a Good Absorber for Near-infrared Sensitive Devices Reviewed
M. Kato, H. Yoshizawa, M. Nakaya, Y. Kitagawa, K. Okamoto, T. Yamada, M. Yoshino, K. Tanaka, and J. Onoe
Scientific Reports Vol. 12 page： 8810-1-12 2022.5
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Domain Structures Induced by Tensile Thermal Strain in Epitaxial PbTiO3 Films on Silicon Substrates Reviewed
T. Sato, M. Kodera, D. Ichinose, T. Mimura, T. Shimizu, T. Yamada, and H. Funakubo
Journal of Applied Physics Vol. 131 page： 035301-1-9 2022.1
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No-Heating Deposition of 1-μm-Thick Y-Doped HfO2 Ferroelectric Films with Good Ferroelectric and Piezoelectric Properties by Radio Frequency Magnetron Sputtering Method Reviewed
R. Shimura, T. Mimura, A. Tateyama, T. Shiraishi, T. Shimizu, T. Yamada, Y. Tanaka, Y. Inoue, and H. Funakubo
Physica Status Solidi-Rapid Research Letters Vol. 16 page： 2100574-1-7 2022.1
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RuO2 Clusters Derived from Bulk SrRuO3: Robust Catalyst for Oxygen Evolution Reaction in Acid Reviewed International coauthorship
M. Ji, X. Yang, S. Chang, W. Chen, J. Wang, D. He, Y. Hu, Q. Deng, Y. Sun, B. Li, J. Xi, T. Yamada, J. Zhang, H. Xiao, C. Zhu, J, Li, and Y. Li
Nano Research page： s12274-021-3843-8-1-7 2021.9