Ryuji Katayama

243 total papers · 1.0k total citations
126 papers, 788 citations indexed

About

Ryuji Katayama is a scholar working on Condensed Matter Physics, Atomic and Molecular Physics, and Optics and Electrical and Electronic Engineering. According to data from OpenAlex, Ryuji Katayama has authored 126 papers receiving a total of 788 indexed citations (citations by other indexed papers that have themselves been cited), including 101 papers in Condensed Matter Physics, 75 papers in Atomic and Molecular Physics, and Optics and 66 papers in Electrical and Electronic Engineering. Recurrent topics in Ryuji Katayama’s work include GaN-based semiconductor devices and materials (101 papers), Semiconductor Quantum Structures and Devices (64 papers) and Semiconductor materials and devices (36 papers). Ryuji Katayama is often cited by papers focused on GaN-based semiconductor devices and materials (101 papers), Semiconductor Quantum Structures and Devices (64 papers) and Semiconductor materials and devices (36 papers). Ryuji Katayama collaborates with scholars based in Japan, Thailand and United States. Ryuji Katayama's co-authors include Kentaro Onabe, Tomoyuki Tanikawa, Takashi Matsuoka, Shigeyuki Kuboya, Takashi Hanada, Kanako Shojiki, Atsushi Nishikawa, Y. Shiraki, Masayuki Kuroda and Takeshi Kimura and has published in prestigious journals such as Applied Physics Letters, Optics Express and Journal of Physics Condensed Matter.

Co-authorship network of co-authors of Ryuji Katayama

This figure shows the co-authorship network connecting the top 25 collaborators of Ryuji Katayama. A scholar is included among the top collaborators of Ryuji Katayama 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 Ryuji Katayama. Ryuji Katayama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Ryuji Katayama

119 papers receiving 782 citations

Fields of papers citing papers by Ryuji Katayama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryuji Katayama. 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 Ryuji Katayama. The network helps show where Ryuji Katayama may publish in the future.

Countries citing papers authored by Ryuji Katayama

Since Specialization
Citations

This map shows the geographic impact of Ryuji Katayama'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 Ryuji Katayama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryuji Katayama more than expected).

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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2026