A. Usui
Impact in
- Condensed Matter Physics top 2%
- GaN-based semiconductor devices and materials
-
- Ga2O3 and related materials
Papers in
-
- GaN-based semiconductor devices and materials 20
-
- ZnO doping and properties 12
- Co-authors
- Haruo Sunakawa (6 shared papers)Takeshi Eri (2 shared papers)Yuichi Oshima (2 shared papers)G. D. Watkins (5 shared papers)M. Mizuta (6 shared papers)Kenji Kobayashi (1 shared paper)Toshinari Ichihashi (1 shared paper)Masatomo Shibata (1 shared paper)
- Journals
- Physical Review B (5 papers)Japanese Journal of Applied Physics (3 papers)Physica B Condensed Matter (2 papers)Physical Review Letters (2 papers)MRS Internet Journal of Nitride Semiconductor Research (1 paper)
- Partner nations
- JapanSwedenUnited States
In The Last Decade
A. Usui
25 papers receiving 777 citations
Peers
Comparison fields: 5 of 25
- Condensed Matter Physics 681
- Electronic, Optical and Magnetic Materials 374
- Materials Chemistry 355
- Atomic and Molecular Physics, and Optics 205
- Electrical and Electronic Engineering 359
Countries citing papers authored by A. Usui
This map shows the geographic impact of A. Usui'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 A. Usui with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites A. Usui more than expected).
Fields of papers citing papers by A. Usui
This network shows the impact of papers produced by A. Usui. 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 A. Usui. The network helps show where A. Usui may publish in the future.
Co-authors
The 25 scholars most cited alongside A. Usui, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
Showing the 20 most-cited of 25 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | 2003 | 246 | |
| 2 | 2009 | 115 | |
| 3 | 2000 | 108 | |
| 4 | 2008 | 98 | |
| 5 | 2004 | 42 | |
| 6 | 2002 | 37 | |
| 7 | 2010 | 34 | |
| 8 | 2007 | 18 | |
| 9 | 2004 | 14 | |
| 10 | 1985 | 13 | |
| 11 | 1994 | 11 | |
| 12 | 2006 | 8 | |
| 13 | 1997 | 7 | |
| 14 | 2000 | 5 | |
| 15 | 2008 | 5 | |
| 16 | 2010 | 5 | |
| 17 | 2003 | 5 | |
| 18 | 2004 | 4 | |
| 19 | 1999 | 3 | |
| 20 | 1996 | 3 |
About A. Usui
A. Usui is a scholar working on Condensed Matter Physics, Materials Chemistry, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials and Electrical and Electronic Engineering, having authored 25 papers that have together received 790 indexed citations. Recurring topics across this work include GaN-based semiconductor devices and materials (20 papers), ZnO doping and properties (12 papers), Semiconductor Quantum Structures and Devices (10 papers), Ga2O3 and related materials (9 papers), Metal and Thin Film Mechanics (5 papers), Semiconductor materials and devices (5 papers), Semiconductor Lasers and Optical Devices (2 papers) and Advanced Semiconductor Detectors and Materials (1 paper). The work is most often cited by research in Condensed Matter Physics (681 citations), Electronic, Optical and Magnetic Materials (374 citations), Materials Chemistry (355 citations), Atomic and Molecular Physics, and Optics (205 citations) and Electrical and Electronic Engineering (359 citations). A. Usui has collaborated with scholars based in Japan, Sweden and United States. Frequent co-authors include Haruo Sunakawa, Takeshi Eri, Yuichi Oshima, G. D. Watkins, M. Mizuta, Kenji Kobayashi, Toshinari Ichihashi, Masatomo Shibata, K. H. Chow and T. Paskova. Their work appears in journals such as Physical Review B, Japanese Journal of Applied Physics, Physica B Condensed Matter, Physical Review Letters and MRS Internet Journal of Nitride Semiconductor Research.
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.