Kenji Umezawa

804 total citations
63 papers, 677 citations indexed

About

Kenji Umezawa is a scholar working on Atomic and Molecular Physics, and Optics, Computational Mechanics and Electrical and Electronic Engineering. According to data from OpenAlex, Kenji Umezawa has authored 63 papers receiving a total of 677 indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Atomic and Molecular Physics, and Optics, 19 papers in Computational Mechanics and 16 papers in Electrical and Electronic Engineering. Recurrent topics in Kenji Umezawa's work include Ion-surface interactions and analysis (19 papers), Surface and Thin Film Phenomena (16 papers) and nanoparticles nucleation surface interactions (15 papers). Kenji Umezawa is often cited by papers focused on Ion-surface interactions and analysis (19 papers), Surface and Thin Film Phenomena (16 papers) and nanoparticles nucleation surface interactions (15 papers). Kenji Umezawa collaborates with scholars based in Japan, United States and Sweden. Kenji Umezawa's co-authors include Shigemitsu Nakanishi, W. M. Gibson, Yoshihito Maeda, Junji Yamane, Fumiya Shoji, Kenjiro Oura, Kiyoshi Miyake, Teruo Hanawa, Masamichi Naitoh and Yoshikazu Hayashi and has published in prestigious journals such as Physical review. B, Condensed matter, Applied Physics Letters and Journal of Applied Physics.

In The Last Decade

Kenji Umezawa

59 papers receiving 664 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Kenji Umezawa Japan 15 426 248 226 138 110 63 677
D. Bruchmann Germany 8 509 1.2× 348 1.4× 330 1.5× 95 0.7× 190 1.7× 9 780
A. vom Felde United States 9 289 0.7× 134 0.5× 214 0.9× 100 0.7× 92 0.8× 19 550
Daniel M Makowiecki United States 11 245 0.6× 151 0.6× 339 1.5× 77 0.6× 103 0.9× 27 655
J.M.C. Thornton United Kingdom 13 627 1.5× 333 1.3× 233 1.0× 50 0.4× 179 1.6× 29 827
M. Lohmeier Netherlands 12 463 1.1× 238 1.0× 295 1.3× 40 0.3× 97 0.9× 18 694
H. M. van Pinxteren Netherlands 10 395 0.9× 172 0.7× 246 1.1× 60 0.4× 74 0.7× 11 610
P. Bedrossian United States 16 758 1.8× 492 2.0× 315 1.4× 281 2.0× 210 1.9× 32 1.2k
Nicholas G. Norton United Kingdom 5 548 1.3× 358 1.4× 236 1.0× 63 0.5× 215 2.0× 6 809
H. Bu United States 19 587 1.4× 210 0.8× 464 2.1× 249 1.8× 211 1.9× 44 975
A. Biedermann Austria 21 779 1.8× 230 0.9× 268 1.2× 107 0.8× 68 0.6× 40 1.0k

Countries citing papers authored by Kenji Umezawa

Since Specialization
Citations

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

Fields of papers citing papers by Kenji Umezawa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kenji Umezawa

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

All Works

20 of 20 papers shown
1.
Fukuda, T., et al.. (2025). Initial stage of silver overlayer formation on the Ni(110) surface. Surface Science. 761. 122807–122807.
2.
Fukuda, T., et al.. (2020). Formation of two-dimensional silicide on Ni(100) surface. Japanese Journal of Applied Physics. 59(6). 65501–65501. 3 indexed citations
3.
Umezawa, Kenji, et al.. (2013). Temperature dependence of growth mode and epitaxial orientation on Au/Ni(111). Surface Science. 622. 60–64. 1 indexed citations
4.
Meissl, W., et al.. (2012). Real-time observation of Escherichia coli cells under irradiation with a 2-MeV H+ microbeam. Applied Physics Letters. 100(19). 17 indexed citations
5.
Umezawa, Kenji. (2010). The Systems of TOF-low Energy Ne Scattering Spectroscopy for Insulator. e-Journal of Surface Science and Nanotechnology. 8. 194–196. 2 indexed citations
6.
Fukuda, T., et al.. (2009). First Principles Study of Cu-Embedded Ni(110) Surfaces. e-Journal of Surface Science and Nanotechnology. 7(0). 681–687. 1 indexed citations
7.
Umezawa, Kenji. (2008). Low energy ion and atom scattering spectroscopy for surface structural analysis of single metal and insulator crystals. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 266(8). 1892–1896. 2 indexed citations
8.
Hoshino, Yasushi, et al.. (2005). Dynamic response of target electrons upon low and medium energy ion impact. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 230(1-4). 31–35.
9.
Umezawa, Kenji, Shigemitsu Nakanishi, Kaoru Ojima, et al.. (2003). Layer-by-layer surfactant-induced growth of Ag on Cu(): an impact collision ion scattering spectroscopy and scanning tunnelling microscopy study. Surface Science. 529(1-2). 95–106. 3 indexed citations
10.
Nakanishi, Shigemitsu, Kenji Umezawa, Masamichi Yoshimura, & K. Ueda. (2000). Method for nanostructuring of Ag atoms on Ni(111) surfaces. Physical review. B, Condensed matter. 62(19). 13136–13141. 17 indexed citations
11.
Hayashi, Yoshikazu, et al.. (2000). Magnetic Properties of β-FeSi2 Semiconductor. Japanese Journal of Applied Physics. 39(8R). 4751–4751. 11 indexed citations
12.
Maeda, Yoshihito, et al.. (1998). Ion beam synthesis of β-FeSi2as an IR photosensitive material. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 3419. 341916–341916. 9 indexed citations
13.
Umezawa, Kenji, Takahiko Ito, Masahiko Asada, et al.. (1997). Adsorption of hydrogen on the Pt(111) surface from low-energy recoil scattering. Surface Science. 387(1-3). 320–327. 34 indexed citations
14.
Umezawa, Kenji, Shigemitsu Nakanishi, W. M. Gibson, et al.. (1997). Surface structure analysis ofNi(111)−(3×3)R30°−Pbby impact-collision ion-scattering spectroscopy. Physical review. B, Condensed matter. 56(16). 10585–10589. 28 indexed citations
15.
Nakanishi, Shigemitsu, K. Kawamoto, & Kenji Umezawa. (1993). The initial stages of deposition of Au and Ag on Cu(001) studied by low-energy ion scattering. Surface Science. 287-288. 974–978. 24 indexed citations
16.
Nakanishi, Shigemitsu, K. Kawamoto, Nobuo Fukuoka, & Kenji Umezawa. (1992). Low energy ion scattering analysis of the surface compositional change of Au3Cu(001) induced by oxygen chemisorption. Surface Science. 261(1-3). 342–348. 22 indexed citations
17.
Umezawa, Kenji, et al.. (1992). Study of diffusion of a fluorinated hydrocarbon in ion beam irradiated poly(styrene) by nuclear resonance analysis. Applied Physics Letters. 61(13). 1603–1604. 2 indexed citations
18.
Umezawa, Kenji, et al.. (1992). A study of case II diffusion of a fluorinated hydrocarbon in poly(styrene) by resonance nuclear reaction analysis. Journal of Applied Physics. 71(2). 681–684. 12 indexed citations
19.
Nakanishi, Shigemitsu, Nobuo Fukuoka, K. Kawamoto, et al.. (1991). Oxygen induced surface segregation of Cu on the Au0.7Cu0.3(100) surface. Surface Science Letters. 247(1). L215–L220. 1 indexed citations
20.
Oura, Kenjiro, Junji Yamane, Kenji Umezawa, et al.. (1990). Hydrogen adsorption on Si(100)-2×1 surfaces studied by elastic recoil detection analysis. Physical review. B, Condensed matter. 41(2). 1200–1203. 87 indexed citations

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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