2026 Toyohiro Chikyow: Materials Science Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Materials Science	48	10710	10347	659	628	575	12986

Overview

Toyohiro Chikyow is affiliated with the National Institute for Materials Science in Japan. Their research focuses primarily on Engineering and Materials Science, with a particular concentration in the subfields of Materials Chemistry, Biomedical Engineering, Electrical and Electronic Engineering, Mechanical Engineering, and Condensed Matter Physics.

The main topics Toyohiro Chikyow has investigated include:

ZnO doping and properties
GaN-based semiconductor devices and materials
Machine Learning in Materials Science
High Entropy Alloys Studies
Acoustic Wave Resonator Technologies
Advanced Materials Characterization Techniques
Ga2O3 and related materials

Toyohiro Chikyow has contributed regularly to several publication venues, with the most frequent being:

Japanese Journal of Applied Physics
Zenodo (CERN European Organization for Nuclear Research)
Science and Technology of Advanced Materials Methods
ACS Omega
Materials Today Physics

Their recent publications include:

"Realization of closed-loop optimization of epitaxial titanium nitride thin-film growth via machine learning," 2020, Materials Today Physics
"Evidence-based recommender system for high-entropy alloys," 2021, Nature Computational Science
"Layer-by-Layer Motif Heteroarchitecturing of N,S-Codoped Reduced Graphene Oxide-Wrapped Ni/NiS Nanoparticles for the Electrochemical Oxidation of Water," 2020, ChemSusChem
"Automatic exhaustive calculations of large material space by Korringa-Kohn-Rostoker coherent potential approximation method applied to equiatomic quaternary high entropy alloys," 2022, Physical Review Materials
"Valence Band Modification of a (Ga_xIn_1-x)₂O₃ Solid Solution System Fabricated by Combinatorial Synthesis," 2020, ACS Combinatorial Science

Toyohiro Chikyow's frequent collaborators include:

Takahiro Nagata
Shinjiro Yagyu
Hiori Kino
Shigenori Ueda
Atsushi Ogura

Best Publications

Room-Temperature Ferromagnetism in Transparent Transition Metal-Doped Titanium Dioxide

Yuji Matsumoto;Makoto Murakami;Tomoji Shono;Tetsuya Hasegawa

3201
Citations
New MBE growth method for InSb quantum well boxes

Nobuyuki Koguchi;Satoshi Takahashi;Toyohiro Chikyow

445
Citations
Anomalous Hall effect governed by electron doping in a room-temperature transparent ferromagnetic semiconductor

Hidemi Toyosaki;Tomoteru Fukumura;Yasuhiro Yamada;Kiyomi Nakajima

327
Citations
Anatase TiO2 thin films grown on lattice-matched LaAlO3 substrate by laser molecular-beam epitaxy

M. Murakami;Y. Matsumoto;K. Nakajima;T. Makino

222
Citations
S doping in ZnO film by supplying ZnS species with pulsed-laser-deposition method

Young Zo Yoo;Zheng Wu Jin;T. Chikyow;T. Fukumura

213
Citations
First-principles studies of the intrinsic effect of nitrogen atoms on reduction in gate leakage current through Hf-based high-k dielectrics

N. Umezawa;K. Shiraishi;K. Shiraishi;T. Ohno;H. Watanabe;H. Watanabe

189
Citations
Evolution of standing mesochannels on porous anodic alumina substrates with designed conical holes.

Yusuke Yamauchi;Tomota Nagaura;Tomota Nagaura;Ayako Ishikawa;Toyohiro Chikyow

185
Citations
Reaction and regrowth control of CeO2 on Si(111) surface for the silicon‐on‐insulator structure

T. Chikyow;S. M. Bedair;L. Tye;N. A. El‐Masry

183
Citations
ELECTRICAL CHARACTERISTICS OF EPITAXIAL CEO2 ON SI(111)

L. Tye;N. A. El‐Masry;T. Chikyow;P. McLarty

180
Citations
Oxygen Vacancy Induced Substantial Threshold Voltage Shifts in the Hf-based High-$K$ MISFET with p+poly-Si Gates -A Theoretical Approach

Kenji Shiraishi;Keisaku Yamada;Kazuyoshi Torii;Yasushi Akasaka

179
Citations
ZnO–CoO solid solution thin films

Y.-Z. Yoo;T. Fukumura;Zhengwu Jin;K. Hasegawa

157
Citations
Multi-Valued Logic Circuits Based on Organic Anti-ambipolar Transistors.

Kazuyoshi Kobashi;Ryoma Hayakawa;Toyohiro Chikyow;Yutaka Wakayama;Yutaka Wakayama

156
Citations
Blue and ultraviolet cathodoluminescence from Mn-doped epitaxial ZnO thin films

Zheng Wu Jin;Y. Z. Yoo;T. Sekiguchi;T. Chikyow

151
Citations
Modified Oxygen Vacancy Induced Fermi Level Pinning Model Extendable to P-Metal Pinning

Yasushi Akasaka;Genji Nakamura;Kenji Shiraishi;Kenji Shiraishi;Naoto Umezawa

145
Citations
Impact of Cu Electrode on Switching Behavior in a Cu/HfO2/Pt Structure and Resultant Cu Ion Diffusion

Masamitsu Haemori;Takahiro Nagata;Toyohiro Chikyow

142
Citations
Room-Temperature Epitaxial Growth of CeO2 Thin Films on Si(111) Substrates for Fabrication of Sharp Oxide/Silicon Interface

Mamoru Yoshimoto;Kazuki Shimozono;Tatsuro Maeda;Tsuyoshi Ohnishi

142
Citations
Novel germanium-based magnetic semiconductors.

Unknown

139
Citations
Impact of additional factors in threshold voltage variability of metal/high-k gate stacks and its reduction by controlling crystalline structure and grain size in the metal gates

K. Ohmori;T. Matsuki;D. Ishikawa;T. Morooka

136
Citations
Formation of a K—In—Se Surface Species by NaF/KF Postdeposition Treatment of Cu(In,Ga)Se2 Thin-Film Solar Cell Absorbers

Evelyn Handick;Patrick Reinhard;Regan G. Wilks;Fabian Pianezzi

133
Citations
Insulator-metal transition induced by interlayer coupling in La 0.6 Sr 0.4 MnO 3 / SrTiO 3 superlattices

M. Izumi;Y. Ogimoto;Y. Okimoto;T. Manako

129
Citations
Molecular Beam Epitaxy of Wurtzite GaN-Based Magnetic Alloy Semiconductors

Seiji Kuwabara;Tsuyoshi Kondo;Toyohiro Chikyow;Parhat Ahmet

113
Citations