Tomoyasu Usui

1.3k total citations
20 papers, 960 citations indexed

About

Tomoyasu Usui is a scholar working on Electronic, Optical and Magnetic Materials, Materials Chemistry and Condensed Matter Physics. According to data from OpenAlex, Tomoyasu Usui has authored 20 papers receiving a total of 960 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Electronic, Optical and Magnetic Materials, 15 papers in Materials Chemistry and 5 papers in Condensed Matter Physics. Recurrent topics in Tomoyasu Usui's work include Ferroelectric and Piezoelectric Materials (15 papers), Magnetic and transport properties of perovskites and related materials (13 papers) and Multiferroics and related materials (13 papers). Tomoyasu Usui is often cited by papers focused on Ferroelectric and Piezoelectric Materials (15 papers), Magnetic and transport properties of perovskites and related materials (13 papers) and Multiferroics and related materials (13 papers). Tomoyasu Usui collaborates with scholars based in Japan, United Kingdom and Luxembourg. Tomoyasu Usui's co-authors include S. Hirose, Xavier Moya, N. D. Mathur, B. Nair, Sam Crossley, Àlvar Torelló, Emmanuel Defaÿ, Pierre Lhéritier, Youri Nouchokgwe and Olivier Bouton and has published in prestigious journals such as Nature, Science and Journal of the American Chemical Society.

In The Last Decade

Tomoyasu Usui

20 papers receiving 944 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Tomoyasu Usui Japan 12 821 582 332 242 74 20 960
Haiwu Zhang China 21 969 1.2× 473 0.8× 398 1.2× 562 2.3× 45 0.6× 58 1.1k
Hongzhou Song China 14 608 0.7× 199 0.3× 175 0.5× 299 1.2× 37 0.5× 46 704
Nick M. Sbrockey United States 14 746 0.9× 405 0.7× 211 0.6× 392 1.6× 36 0.5× 34 866
Seungwoo Song South Korea 14 564 0.7× 395 0.7× 119 0.4× 250 1.0× 92 1.2× 36 745
Takahisa Shiraishi Japan 21 1.3k 1.6× 337 0.6× 385 1.2× 1.1k 4.3× 69 0.9× 84 1.5k
Yufei Liu United States 11 516 0.6× 124 0.2× 142 0.4× 299 1.2× 52 0.7× 19 739
J. D. S. Guerra Brazil 17 983 1.2× 572 1.0× 320 1.0× 493 2.0× 26 0.4× 116 1.1k
C.C. Wang China 14 434 0.5× 329 0.6× 50 0.2× 201 0.8× 59 0.8× 44 595
K. D. Sung South Korea 13 361 0.4× 318 0.5× 91 0.3× 124 0.5× 59 0.8× 34 497
Rongjin Huang China 16 586 0.7× 303 0.5× 40 0.1× 268 1.1× 96 1.3× 51 740

Countries citing papers authored by Tomoyasu Usui

Since Specialization
Citations

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

Fields of papers citing papers by Tomoyasu Usui

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tomoyasu Usui

This figure shows the co-authorship network connecting the top 25 collaborators of Tomoyasu Usui. A scholar is included among the top collaborators of Tomoyasu Usui 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 Tomoyasu Usui. Tomoyasu Usui 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.
Harada, Jun, et al.. (2024). Solid Solutions of Plastic/Ferroelectric Crystals: Toward Tailor-Made Functional Materials. Journal of the American Chemical Society. 146(30). 21176–21185. 4 indexed citations
2.
Li, Junning, Àlvar Torelló, Veronika Kovacova, et al.. (2023). High cooling performance in a double-loop electrocaloric heat pump. Science. 382(6672). 801–805. 65 indexed citations
3.
Hirose, S., Tomoyasu Usui, Takanobu Hiroto, et al.. (2023). Large conventional and inverse electrocaloric effects in PbMg0.5W0.5O3 multilayer capacitors above and below the Néel temperature. Journal of Physics Energy. 5(3). 35009–35009. 5 indexed citations
4.
Lhéritier, Pierre, Àlvar Torelló, Tomoyasu Usui, et al.. (2022). Large harvested energy with non-linear pyroelectric modules. Nature. 609(7928). 718–721. 66 indexed citations
5.
Nouchokgwe, Youri, Pierre Lhéritier, Tomoyasu Usui, et al.. (2022). Materials efficiency of electrocaloric lead scandium tantalate multilayer capacitors. Scripta Materialia. 219. 114873–114873. 8 indexed citations
6.
Harada, Jun, et al.. (2022). Ferroelectric Ionic Molecular Crystals with Significant Plasticity and a Low Melting Point: High Performance in Hot‐Pressed Polycrystalline Plates and Melt‐Grown Crystalline Sheets. Angewandte Chemie International Edition. 62(3). e202215286–e202215286. 19 indexed citations
7.
Zhang, Ziyang, Tomoyasu Usui, Michael Benedict, et al.. (2020). A high-performance solid-state electrocaloric cooling system. Science. 370(6512). 129–133. 174 indexed citations
8.
Torelló, Àlvar, Pierre Lhéritier, Tomoyasu Usui, et al.. (2020). Giant temperature span in electrocaloric regenerator. Science. 370(6512). 125–129. 166 indexed citations
9.
Hirose, S., Tomoyasu Usui, Masahiko Tanaka, Yoshio Katsuya, & Hiroki Taniguchi. (2020). Ferroelectric and dielectric properties of improper ferroelectric Ca8−xSrx[Al12O24 ](MoO4)2 multilayer capacitors. Journal of Applied Physics. 128(9). 3 indexed citations
10.
Faye, Romain, Tomoyasu Usui, Àlvar Torelló, et al.. (2020). Heat flow in electrocaloric multilayer capacitors. Journal of Alloys and Compounds. 834. 155042–155042. 9 indexed citations
11.
Nair, B., Tomoyasu Usui, Sam Crossley, et al.. (2019). Large electrocaloric effects in oxide multilayer capacitors over a wide temperature range. Nature. 575(7783). 468–472. 218 indexed citations
12.
Usui, Tomoyasu, et al.. (2018). High dielectric permittivity of HfO2-based films with (La,Bi,Nb) substitution. Japanese Journal of Applied Physics. 57(11S). 11UF03–11UF03. 11 indexed citations
13.
Usui, Tomoyasu, S. Hirose, Akira Ando, et al.. (2017). Effect of inactive volume on thermocouple measurements of electrocaloric temperature change in multilayer capacitors of 0.9Pb(Mg1/3Nb2/3)O3–0.1PbTiO3. Journal of Physics D Applied Physics. 50(42). 424002–424002. 24 indexed citations
14.
Hirose, S., Tomoyasu Usui, Sam Crossley, et al.. (2016). Progress on electrocaloric multilayer ceramic capacitor development. APL Materials. 4(6). 37 indexed citations
15.
Nakajima, Hiroshi, Tomoyasu Usui, Yves Joly, et al.. (2016). Quadrupole moments in chiral materialDyFe3(BO3)4observed by resonant x-ray diffraction. Physical review. B.. 93(14). 9 indexed citations
16.
Crossley, Sam, Tomoyasu Usui, B. Nair, et al.. (2016). Direct electrocaloric measurement of 0.9Pb(Mg1/3Nb2/3)O3-0.1PbTiO3 films using scanning thermal microscopy. Applied Physics Letters. 108(3). 48 indexed citations
17.
Kida, Takanori, et al.. (2015). High Field Magnetization of Single Crystals of the S=1/2 Quasi-1D Ising-like Antiferromagnet SrCo2V2O8. Physics Procedia. 75. 779–784. 9 indexed citations
18.
Usui, Tomoyasu, Yoshihito Tanaka, Hiroshi Nakajima, et al.. (2014). Observation of quadrupole helix chirality and its domain structure in DyFe3(BO3)4. Nature Materials. 13(6). 611–618. 38 indexed citations
19.
Hellsvik, Johan, Tomoyasu Usui, Alessandro Stroppa, et al.. (2014). Tuning order-by-disorder multiferroicity in CuO by doping. Physical Review B. 90(1). 14 indexed citations
20.
Quirion, G., et al.. (2012). Magnetic Phase Diagram of CuO via High-Resolution Ultrasonic Velocity Measurements. Physical Review Letters. 109(16). 167206–167206. 33 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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