Fumiyasu Oba

17.9k total citations · 3 hit papers
223 papers, 15.3k citations indexed

About

Fumiyasu Oba is a scholar working on Materials Chemistry, Electrical and Electronic Engineering and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, Fumiyasu Oba has authored 223 papers receiving a total of 15.3k indexed citations (citations by other indexed papers that have themselves been cited), including 163 papers in Materials Chemistry, 75 papers in Electrical and Electronic Engineering and 63 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in Fumiyasu Oba's work include ZnO doping and properties (66 papers), Electronic and Structural Properties of Oxides (58 papers) and Copper-based nanomaterials and applications (32 papers). Fumiyasu Oba is often cited by papers focused on ZnO doping and properties (66 papers), Electronic and Structural Properties of Oxides (58 papers) and Copper-based nanomaterials and applications (32 papers). Fumiyasu Oba collaborates with scholars based in Japan, United States and United Kingdom. Fumiyasu Oba's co-authors include Isao Tanaka, Atsushi Togo, Yu Kumagai, Yoyo Hinuma, Georg Kresse, Akihide Kuwabara, Minseok Choi, Hirohiko Adachi, Atsuto Seko and Hiroyuki Hayashi and has published in prestigious journals such as Journal of the American Chemical Society, Physical Review Letters and Advanced Materials.

In The Last Decade

Fumiyasu Oba

216 papers receiving 15.0k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

First-principles calculations of the ferroelastic transition between rutile-type andCaCl2-typeSiO2at high pressures

2008 4.7k citations Fumiyasu Oba, Isao Tanaka et al. Physical Review B profile →
Defect energetics in ZnO: A hybrid Hartree-Fock density functional study

2008 651 citations Fumiyasu Oba, Isao Tanaka et al. Physical Review B profile →
Effect of MnO₂ Crystal Structure on Aerobic Oxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic Acid

2019 407 citations Naoki Tsunoda, Yu Kumagai et al. Journal of the American Chemical Society profile →

Peers

Fumiyasu Oba

EEE

EOMM

AMPO

CMP

Vidvuds Ozoliņš United States

Atsushi Togo Japan

Stephan Lany United States

Wenqing Zhang China

Matthew F. Chisholm United States

Richard G. Hennig United States

Gian‐Marco Rignanese Belgium

Quanlin Liu China

Paul R. C. Kent United States

Andrey Chuvilin Spain

Vidvuds Ozoliņš United States

Fumiyasu Oba

9.1k ×0.7

4.3k ×0.8

EEE

2.6k ×0.7

EOMM

2.0k ×1.2

AMPO

1.3k ×0.8

CMP

Citations per year, relative to Fumiyasu Oba Fumiyasu Oba (= 1×) peers Vidvuds Ozoliņš

Countries citing papers authored by Fumiyasu Oba

Since Specialization

Citations

This map shows the geographic impact of Fumiyasu Oba's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Fumiyasu Oba with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Fumiyasu Oba more than expected).

Fields of papers citing papers by Fumiyasu Oba

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Fumiyasu Oba. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Fumiyasu Oba. The network helps show where Fumiyasu Oba may publish in the future.

Co-authorship network of co-authors of Fumiyasu Oba

This figure shows the co-authorship network connecting the top 25 collaborators of Fumiyasu Oba. A scholar is included among the top collaborators of Fumiyasu Oba based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Fumiyasu Oba. Fumiyasu Oba is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Ogawa, Kanta, Seán R. Kavanagh, Fumiyasu Oba, & Aron Walsh. (2025). Defect Tolerance via External Passivation in the Photocatalyst SrTiO ₃ :Al. Journal of the American Chemical Society. 147(26). 23180–23191. 5 indexed citations

Hanzawa, Kota, Soungmin Bae, Takayoshi Katase, et al.. (2024). Carrier generation and compensation mechanism in La₂SnO₂S₃. Journal of Materials Chemistry C. 12(31). 12015–12025. 1 indexed citations

Oba, Fumiyasu, Takayuki Nagai, Kota Hanzawa, et al.. (2024). Theoretical and data-driven approaches to semiconductors and dielectrics: from prediction to experiment. Science and Technology of Advanced Materials. 25(1). 2423600–2423600.

Sato, Nobuya, Akira Takahashi, Shin Kiyohara, et al.. (2024). Target Material Property‐Dependent Cluster Analysis of Inorganic Compounds. SHILAP Revista de lepidopterología. 6(12). 2 indexed citations

Yamamoto, Takafumi, Shogo Kawaguchi, Naoki Tsunoda, et al.. (2023). Emergence of Dynamically‐Disordered Phases During Fast Oxygen Deintercalation Reaction of Layered Perovskite. Advanced Science. 10(19). e2301876–e2301876. 5 indexed citations

Oba, Fumiyasu. (2023). Computational design and exploration of nitride and oxide semiconductors. Journal of the Ceramic Society of Japan. 131(8). 392–397. 2 indexed citations

Takahashi, Akira, Yu Kumagai, Hirotaka Aoki, Ryo Tamura, & Fumiyasu Oba. (2022). Adaptive sampling methods via machine learning for materials screening. SHILAP Revista de lepidopterología. 2(1). 55–66. 7 indexed citations

Kumagai, Yu, Keisuke Ide, Takayoshi Katase, et al.. (2020). Phonon scattering limited mobility in the representative cubic perovskite semiconductors SrGeO3, BaSnO3, and SrTiO3. Physical review. B.. 101(12). 17 indexed citations

Shimizu, Keisuke, Hajime Hojo, Hajime Yamamoto, et al.. (2019). Direct Observation of Magnetization Reversal by Electric Field at Room Temperature in Co-Substituted Bismuth Ferrite Thin Film. Nano Letters. 19(3). 1767–1773. 26 indexed citations

10.

Shimokawa, Kohei, Masanobu Nakayama, Yu Kumagai, et al.. (2019). Zinc-based spinel cathode materials for magnesium rechargeable batteries: toward the reversible spinel–rocksalt transition. Journal of Materials Chemistry A. 7(19). 12225–12235. 68 indexed citations

11.

Hinuma, Yoyo, Yu Kumagai, Isao Tanaka, & Fumiyasu Oba. (2018). Effects of composition, crystal structure, and surface orientation on band alignment of divalent metal oxides: A first-principles study. Physical Review Materials. 2(12). 29 indexed citations

12.

Fujita, Koji, Takahiro Kawamoto, Ikuya Yamada, et al.. (2017). Perovskite-Type InCoO₃ with Low-Spin Co³⁺: Effect of In–O Covalency on Structural Stabilization in Comparison with Rare-Earth Series. Inorganic Chemistry. 56(18). 11113–11122. 9 indexed citations

13.

Hinuma, Yoyo, Yu Kumagai, Lee A. Burton, et al.. (2016). Discovery of earth-abundant nitride semiconductors by computational screening and high-pressure synthesis. Nature Communications. 7(1). 11962–11962. 220 indexed citations

14.

Grüneis, Andreas, Georg Kresse, Yoyo Hinuma, & Fumiyasu Oba. (2014). Ionization Potentials of Solids: The Importance of Vertex Corrections. Physical Review Letters. 112(9). 96401–96401. 196 indexed citations

15.

Choi, Minseok, Fumiyasu Oba, & Isao Tanaka. (2009). Role of Ti Antisitelike Defects inSrTiO3. Physical Review Letters. 103(18). 185502–185502. 109 indexed citations

16.

Toyoura, Kazuaki, Yukinori Koyama, Akihide Kuwabara, Fumiyasu Oba, & Isao Tanaka. (2008). First-principles approach to chemical diffusion of lithium atoms in a graphite intercalation compound. Physical Review B. 78(21). 229 indexed citations

17.

Hayashi, Hisashi, R. T. Huang, Hidekazu Ikeno, et al.. (2006). Room temperature ferromagnetism in Mn-doped gamma-Ga2O3 with spinel structure. Applied Physics Letters. 89(18). 1 indexed citations

18.

Hashimoto, Masafumi, et al.. (2003). Study on Model-Based Fault Detection and Diagnosis for Mobile Robot : Fault diagnosis of internal sensor and robot-localization. The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec). 2003(0). 93–93. 1 indexed citations

19.

Hashimoto, Masafumi, et al.. (2002). Multiple-Model Based Fault Detection and Diagnosis of Internal Sensors in Mobile Robot. The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec). 2002(0). 74–74. 2 indexed citations

20.

Smith, Charlotte, Yoshisada Murotsu, Fumiyasu Oba, & Koichi Niwa. (1979). Failure-Prevention and Reliability Conference. Journal of Mechanical Design. 101(4). 539–539. 3 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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