J. Sayama

431 total citations
27 papers, 334 citations indexed

About

J. Sayama is a scholar working on Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials and Condensed Matter Physics. According to data from OpenAlex, J. Sayama has authored 27 papers receiving a total of 334 indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Atomic and Molecular Physics, and Optics, 20 papers in Electronic, Optical and Magnetic Materials and 5 papers in Condensed Matter Physics. Recurrent topics in J. Sayama's work include Magnetic properties of thin films (26 papers), Magnetic Properties of Alloys (16 papers) and Magnetic and transport properties of perovskites and related materials (6 papers). J. Sayama is often cited by papers focused on Magnetic properties of thin films (26 papers), Magnetic Properties of Alloys (16 papers) and Magnetic and transport properties of perovskites and related materials (6 papers). J. Sayama collaborates with scholars based in Japan and United States. J. Sayama's co-authors include Tetsuya Ōsaka, Toru Asahi, Kazuki MIZUTANI, K. Ouchi, J. Ariake, Masaichiro Mizumaki, Jun Kawaji, Akane Agui, S. Matsunuma and Yoshifumi Yamashita and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Electrochimica Acta.

In The Last Decade

J. Sayama

26 papers receiving 330 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
J. Sayama Japan 9 286 230 103 49 36 27 334
A. Bolyachkin Japan 12 161 0.6× 272 1.2× 75 0.7× 86 1.8× 21 0.6× 36 317
M. J. Conover United States 6 327 1.1× 222 1.0× 190 1.8× 93 1.9× 37 1.0× 12 384
K. D. Aylesworth United States 9 281 1.0× 280 1.2× 134 1.3× 34 0.7× 44 1.2× 17 362
K. Ishida Japan 9 93 0.3× 201 0.9× 256 2.5× 58 1.2× 26 0.7× 17 330
E. Kosubek Germany 12 490 1.7× 306 1.3× 180 1.7× 145 3.0× 92 2.6× 16 533
V. A. Vas’ko United States 11 157 0.5× 423 1.8× 434 4.2× 151 3.1× 89 2.5× 11 583
W. Gil Germany 4 165 0.6× 89 0.4× 83 0.8× 61 1.2× 34 0.9× 9 226
E. Feldtkeller Germany 11 299 1.0× 220 1.0× 101 1.0× 55 1.1× 87 2.4× 16 355
C. J. Gutierrez United States 10 375 1.3× 248 1.1× 162 1.6× 80 1.6× 72 2.0× 17 420
A. P. Shapovalov Ukraine 10 109 0.4× 97 0.4× 182 1.8× 50 1.0× 53 1.5× 71 264

Countries citing papers authored by J. Sayama

Since Specialization
Citations

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

Fields of papers citing papers by J. Sayama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. Sayama

This figure shows the co-authorship network connecting the top 25 collaborators of J. Sayama. A scholar is included among the top collaborators of J. Sayama 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 J. Sayama. J. Sayama 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.
Nemoto, Hiroaki, et al.. (2012). Capped L1-ordered FePt granular media with reduced surface roughness. Journal of Applied Physics. 111(7). 2 indexed citations
2.
Shimatsu, T., Y. Inaba, H. Kataoka, et al.. (2011). Dot arrays of L1-type FePt ordered alloy perpendicular films fabricated using low-temperature sputter film deposition. Journal of Applied Physics. 109(7). 11 indexed citations
3.
Sayama, J., et al.. (2011). Fabrication of L1-ordered FePt granular media using an in-line sputtering system. Journal of Applied Physics. 109(7). 4 indexed citations
4.
5.
Tanaka, Masahito, Toru Asahi, Akane Agui, et al.. (2008). Existence and origin of compensation layer thickness in Tb20Co80/Pd multilayered films. Journal of Physics D Applied Physics. 41(5). 55003–55003. 5 indexed citations
6.
7.
Ōsaka, Tetsuya, et al.. (2007). Fabrication of SmCo$_{5}$ Double-Layered Perpendicular Magnetic Recording Media. IEEE Transactions on Magnetics. 43(6). 2109–2111. 7 indexed citations
8.
Agui, Akane, et al.. (2007). Microscopic magnetic property of perpendicular magnetic films of DyxCo100−x measured using soft X-ray magnetic circular dichroism. Journal of Physics and Chemistry of Solids. 68(11). 2148–2152. 9 indexed citations
9.
Ōsaka, Tetsuya & J. Sayama. (2006). A challenge of new materials for next generation's magnetic recording. Electrochimica Acta. 52(8). 2884–2890. 14 indexed citations
10.
Agui, Akane, Toru Asahi, J. Sayama, et al.. (2006). Study on N2-added and B-doped effect in Co/Pd multilayered films using soft x-ray absorption and magnetic circular dichroism. Journal of Physics D Applied Physics. 39(14). 2881–2885. 1 indexed citations
11.
Sayama, J., Kazuki MIZUTANI, Toru Asahi, et al.. (2005). Origin of perpendicular magnetic anisotropy of SmCo5 thin films with Cu underlayer. Journal of Magnetism and Magnetic Materials. 301(1). 271–278. 33 indexed citations
12.
Sayama, J., et al.. (2005). SmCo/sub 5/-based thin films with high magnetic anisotropy for perpendicular magnetic recording. IEEE Transactions on Magnetics. 41(10). 3133–3135. 13 indexed citations
13.
Agui, Akane, Masaichiro Mizumaki, Toru Asahi, et al.. (2005). Incident angle dependence of MCD at the Dy M5-edge of perpendicular magnetic DyxCo100−x films. Journal of Alloys and Compounds. 408-412. 741–745. 8 indexed citations
14.
Sayama, J.. (2004). Newly developed SmCo_5 thin film with perpendicular magnetic anisotropy. Journal of Physics D Applied Physics. 37(1). 3 indexed citations
15.
Sayama, J., et al.. (2004). Thin films of SmCo5 with very high perpendicular magnetic anisotropy. Applied Physics Letters. 85(23). 5640–5642. 61 indexed citations
16.
Agui, Akane, Masaichiro Mizumaki, Toru Asahi, et al.. (2004). MCD Measurement at the Tb M4, 5-edges of Tb17 Feχ Co (83-χ) Perpendicular Magnetization Films. 4(4-2). 326–329. 6 indexed citations
17.
Asahi, Toru, et al.. (2004). Effect of N2 additive gas during sputtering on magnetic properties and microstructure of CoB/Pd multilayered media. Journal of Magnetism and Magnetic Materials. 287. 199–203. 1 indexed citations
18.
Agui, Akane, Masaichiro Mizumaki, T. Matsushita, et al.. (2004). Soft x-ray magnetic circular dichroism study of [Co/Pd] multilayered perpendicular magnetic films. Journal of Applied Physics. 95(12). 7825–7831. 6 indexed citations
19.
20.
Kawaji, Jun, et al.. (2002). Reduction of Medium Noise for [Co/Pd]_n, Perpendicular Magnetic Recording Media by Addition of Non-magnetic Layer to the Recording Layer. 102(112). 35–40. 1 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by A. Bolyachkin Breakdown of academic impact, for papers by M. J. Conover Breakdown of academic impact, for papers by K. D. Aylesworth Breakdown of academic impact, for papers by K. Ishida Breakdown of academic impact, for papers by E. Kosubek Breakdown of academic impact, for papers by V. A. Vas’ko Breakdown of academic impact, for papers by W. Gil Breakdown of academic impact, for papers by E. Feldtkeller Breakdown of academic impact, for papers by C. J. Gutierrez Breakdown of academic impact, for papers by A. P. Shapovalov
Rankless by CCL
2026