Kiyomi Okamoto

2.0k total citations · 1 hit paper
93 papers, 1.5k citations indexed

About

Kiyomi Okamoto is a scholar working on Condensed Matter Physics, Atomic and Molecular Physics, and Optics and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, Kiyomi Okamoto has authored 93 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 89 papers in Condensed Matter Physics, 66 papers in Atomic and Molecular Physics, and Optics and 15 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in Kiyomi Okamoto's work include Physics of Superconductivity and Magnetism (81 papers), Theoretical and Computational Physics (43 papers) and Quantum many-body systems (41 papers). Kiyomi Okamoto is often cited by papers focused on Physics of Superconductivity and Magnetism (81 papers), Theoretical and Computational Physics (43 papers) and Quantum many-body systems (41 papers). Kiyomi Okamoto collaborates with scholars based in Japan and France. Kiyomi Okamoto's co-authors include K. Nomura, Tôru Sakai, Atsuhiro Kitazawa, Takashi Tonegawa, Makoto Kaburagi, Kouichi Okunishi, Yutaka Takahashi, Hidetoshi Nishimori, Chigak Itoi and Tota Nakamura and has published in prestigious journals such as Physical Review Letters, SHILAP Revista de lepidopterología and Physical review. B, Condensed matter.

In The Last Decade

Kiyomi Okamoto

85 papers receiving 1.5k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Fluid-dimer critical point in S = antiferromagnetic Heisenberg chain with next nearest neighbor interactions

1992 420 citations Kiyomi Okamoto et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Kiyomi Okamoto Japan	18	1.3k	957	311	61	52	93	1.5k
A. K. Kolezhuk Ukraine	27	1.4k 1.0×	1.1k 1.2×	454 1.5×	61 1.0×	38 0.7×	71	1.7k
J. Schulenburg Germany	18	1.3k 0.9×	649 0.7×	361 1.2×	58 1.0×	28 0.5×	35	1.4k
Matthieu Mambrini France	20	1.2k 0.9×	779 0.8×	294 0.9×	45 0.7×	32 0.6×	35	1.3k
Naokazu Shibata Japan	18	812 0.6×	790 0.8×	177 0.6×	96 1.6×	30 0.6×	66	1.1k
Pierre Pujol France	17	964 0.7×	807 0.8×	198 0.6×	78 1.3×	27 0.5×	60	1.2k
Shou-Shu Gong United States	22	1.4k 1.1×	1.2k 1.3×	327 1.1×	107 1.8×	45 0.9×	74	1.7k
Oleg Derzhko Ukraine	21	1.3k 0.9×	1.0k 1.1×	271 0.9×	94 1.5×	38 0.7×	123	1.6k
Ribhu K. Kaul United States	25	1.4k 1.1×	894 0.9×	474 1.5×	130 2.1×	29 0.6×	54	1.7k
Maria Hermanns Sweden	20	992 0.7×	877 0.9×	350 1.1×	94 1.5×	35 0.7×	38	1.3k
P. Lecheminant France	19	1.2k 0.9×	779 0.8×	333 1.1×	36 0.6×	50 1.0×	31	1.3k

Countries citing papers authored by Kiyomi Okamoto

Since Specialization

Citations

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

Fields of papers citing papers by Kiyomi Okamoto

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kiyomi Okamoto

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

All Works

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20 of 20 papers shown

Kawatsu, Tsutomu, et al.. (2025). Translational-Symmetry-Broken Magnetization Plateaux of the S = 3/2 Anisotropic Antiferromagnetic Chain. Journal of the Physical Society of Japan. 94(6).

Sakai, Tôru, et al.. (2023). Quantum spin nematic liquid in the low-dimensional anisotropic magnets -S=1/2 delta spin chain with the anisotropic ferromagnetic interaction in magnetic field-. SHILAP Revista de lepidopterología.

Sakai, Tôru, et al.. (2023). Translational symmetry broken magnetization plateau of the S=1 antiferromagnetic Heisenberg chain with competing anisotropies. Physical review. B.. 108(17). 1 indexed citations

Yamaguchi, Hironori, Hiroki Takahashi, Takashi Kawakami, et al.. (2023). Spin-Peierls transition to a Haldane phase. Physical review. B.. 107(16). 3 indexed citations

Sakai, Tôru, et al.. (2022). Field-induced spin nematic Tomonaga-Luttinger liquid of the S=12 spin ladder system with anisotropic ferromagnetic rung interaction. Physical review. B.. 106(6). 2 indexed citations

Sakai, Tôru, et al.. (2022). Field-Induced Quantum Spin Nematic Liquid Phase in the S=1 Antiferromagnetic Heisenberg Chain with Additional Interactions. Journal of Physics Conference Series. 2164(1). 12030–12030. 3 indexed citations

Okamoto, Kiyomi, Masahiro Sato, Kouichi Okunishi, Tôru Sakai, & Chigak Itoi. (2010). Magnetization plateau of the quantum spin nanotube. Physica E Low-dimensional Systems and Nanostructures. 43(3). 769–772. 4 indexed citations

Sakai, Tôru, Takashi Tonegawa, & Kiyomi Okamoto. (2010). Field‐induced nematic phase in the spin ladder system with easy‐axis anisotropy. physica status solidi (b). 247(3). 583–585. 4 indexed citations

Sakai, Tôru, Kouichi Okunishi, Kiyomi Okamoto, Chigak Itoi, & Masahiro Sato. (2009). Field Induced Exotic Phenomena of the S=1/2 Three-Leg Quantum Spin Nanotube. Journal of Low Temperature Physics. 159(1-2). 55–59. 6 indexed citations

10.

Okamoto, Kiyomi, Kouichi Okunishi, & Tôru Sakai. (2005). Magnetization Process of an S=1 Frustrated Spin Ladder (Statistical Physics of Quantum Systems--novel orders and dynamics). Journal of the Physical Society of Japan. 74. 165–168. 1 indexed citations

11.

Okamoto, Kiyomi, et al.. (2005). Magnetization Plateau ofS= 1 Spin Ladder BIP-TENO. Progress of Theoretical Physics Supplement. 159. 251–255. 3 indexed citations

12.

Okamoto, Kiyomi, Kouichi Okunishi, & Tôru Sakai. (2005). Magnetization Process of anS=1 Frustrated Spin Ladder. Journal of the Physical Society of Japan. 74(Suppl). 165–168. 2 indexed citations

13.

Maeshima, Nobuya, Kouichi Okunishi, Kiyomi Okamoto, & Tôru Sakai. (2004). Frustration-InducedηInversion in theS=1/2Bond-Alternating Spin Chain. Physical Review Letters. 93(12). 127203–127203. 21 indexed citations

14.

Okamoto, Kiyomi. (2002). Level Spectroscopy: Physical Meaning and Application to the Magnetization Plateau Problems. Progress of Theoretical Physics Supplement. 145. 113–118. 10 indexed citations

15.

Tonegawa, Takashi, Kiyomi Okamoto, & Takashi Hikihara. (2000). Ground State Properties of an S=1/2 Distorted Diamond Chain (Frontiers in Magnetism). Journal of the Physical Society of Japan. 69. 332–338. 15 indexed citations

16.

Okamoto, Kiyomi, et al.. (1999). Ground State of the S=1/2 Distorted Diamond Chain --- Model of Cu_3_Cl_6_(H_2_O)_2_・2H_8_C_4_SO_2_. Tokyo Tech Research Repository (Tokyo Institute of Technology). 79 indexed citations

17.

Kitazawa, Atsuhiro & Kiyomi Okamoto. (1999). Breakdown of the magnetization plateau of theS= 1/2 ferromagnetic-ferromagnetic-antiferromagnetic trimerized spin chain with anisotropy. Journal of Physics Condensed Matter. 11(48). 9765–9774. 19 indexed citations

18.

Nishimori, Hidetoshi, et al.. (1987). Competition between the Néel and the Effective Singlet States in Spin-1/2 Alternating Heisenberg-Ising Antiferromagnet in One Dimension. Journal of the Physical Society of Japan. 56(11). 4126–4133. 9 indexed citations

19.

Okamoto, Kiyomi. (1987). Correlation Function <S^z_iS^z_j> in Spin-1/2 Alternating Heisenberg-XYAntiferromagnets in One Dimension. Journal of the Physical Society of Japan. 56(3). 912–917. 17 indexed citations

20.

Okamoto, Kiyomi, Hidetoshi Nishimori, & Y‐h. Taguchi. (1986). A Numerical Study of Spin-1/2 Alternating Antiferromagnetic Heisenberg Linear Chains. Journal of the Physical Society of Japan. 55(5). 1458–1465. 32 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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