Ryuji Katayama

120 papers and 775 indexed citations i.

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 120 papers receiving a total of 775 indexed citations (citations by other indexed papers that have themselves been cited), including 96 papers in Condensed Matter Physics, 73 papers in Atomic and Molecular Physics, and Optics and 62 papers in Electrical and Electronic Engineering. Recurrent topics in Ryuji Katayama’s work include GaN-based semiconductor devices and materials (96 papers), Semiconductor Quantum Structures and Devices (62 papers) and Semiconductor materials and devices (35 papers). Ryuji Katayama is often cited by papers focused on GaN-based semiconductor devices and materials (96 papers), Semiconductor Quantum Structures and Devices (62 papers) and Semiconductor materials and devices (35 papers). Ryuji Katayama collaborates with scholars based in Japan, Thailand and Taiwan. Ryuji Katayama's co-authors include Kentaro Onabe, Takashi Matsuoka, Tomoyuki Tanikawa, Shigeyuki Kuboya, Takashi Hanada, Kanako Shojiki, Atsushi Nishikawa, Y. Shiraki, Masayuki Kuroda and Takashi Kondo and has published in prestigious journals such as Applied Physics Letters, Optics Express and Journal of Physics Condensed Matter.

In The Last Decade

Co-authorship network of co-authors of Ryuji Katayama i

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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2025