Hiroki Kotaka

20 papers and 361 indexed citations i.

About

Hiroki Kotaka is a scholar working on Atomic and Molecular Physics, and Optics, Materials Chemistry and Condensed Matter Physics. According to data from OpenAlex, Hiroki Kotaka has authored 20 papers receiving a total of 361 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Atomic and Molecular Physics, and Optics, 13 papers in Materials Chemistry and 8 papers in Condensed Matter Physics. Recurrent topics in Hiroki Kotaka’s work include Topological Materials and Phenomena (9 papers), Graphene research and applications (8 papers) and Quantum and electron transport phenomena (8 papers). Hiroki Kotaka is often cited by papers focused on Topological Materials and Phenomena (9 papers), Graphene research and applications (8 papers) and Quantum and electron transport phenomena (8 papers). Hiroki Kotaka collaborates with scholars based in Japan, Indonesia and Germany. Hiroki Kotaka's co-authors include Fumiyuki Ishii, Mineo Saito, Moh. Adhib Ulil Absor, Tamio Oguchi, Iman Santoso, Kamsul Abraha, Kunihiko Yamauchi, T. Sato, K. Nakayama and Hideo Kimizuka and has published in prestigious journals such as Journal of Applied Physics, Japanese Journal of Applied Physics and Journal of Crystal Growth.

In The Last Decade

Co-authorship network of co-authors of Hiroki Kotaka i

Fields of papers citing papers by Hiroki Kotaka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Hiroki Kotaka

Since Specialization
Citations

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