Kei-ichi Koga

36 total papers · 828 total citations
22 papers, 655 citations indexed

About

Kei-ichi Koga is a scholar working on Condensed Matter Physics, Electronic, Optical and Magnetic Materials and Materials Chemistry. According to data from OpenAlex, Kei-ichi Koga has authored 22 papers receiving a total of 655 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Condensed Matter Physics, 8 papers in Electronic, Optical and Magnetic Materials and 8 papers in Materials Chemistry. Recurrent topics in Kei-ichi Koga’s work include Physics of Superconductivity and Magnetism (10 papers), Advanced Condensed Matter Physics (8 papers) and Graphene research and applications (4 papers). Kei-ichi Koga is often cited by papers focused on Physics of Superconductivity and Magnetism (10 papers), Advanced Condensed Matter Physics (8 papers) and Graphene research and applications (4 papers). Kei-ichi Koga collaborates with scholars based in Japan, Hungary and Spain. Kei-ichi Koga's co-authors include T. Tamegai, Yasuhiro Iye, Kunio Suzuki, Fumiko Sakai, Masaki Ichihara, Yutaka Ueda, Hiroshi Yaśuoka, Y. Yoshinari, Kōji Kosuge and T. Takabatake and has published in prestigious journals such as Physical Review Letters, Physical review. B, Condensed matter and Japanese Journal of Applied Physics.

Co-authorship network of co-authors of Kei-ichi Koga

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

Kei-ichi Koga

22 papers receiving 619 citations

Fields of papers citing papers by Kei-ichi Koga

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kei-ichi Koga. 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 Kei-ichi Koga. The network helps show where Kei-ichi Koga may publish in the future.

Countries citing papers authored by Kei-ichi Koga

Since Specialization
Citations

This map shows the geographic impact of Kei-ichi Koga'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 Kei-ichi Koga with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kei-ichi Koga 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