K. Kumagai

5.0k total citations · 1 hit paper
196 papers, 3.8k citations indexed

About

K. Kumagai is a scholar working on Condensed Matter Physics, Electronic, Optical and Magnetic Materials and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, K. Kumagai has authored 196 papers receiving a total of 3.8k indexed citations (citations by other indexed papers that have themselves been cited), including 157 papers in Condensed Matter Physics, 126 papers in Electronic, Optical and Magnetic Materials and 35 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in K. Kumagai's work include Physics of Superconductivity and Magnetism (113 papers), Advanced Condensed Matter Physics (90 papers) and Magnetic and transport properties of perovskites and related materials (64 papers). K. Kumagai is often cited by papers focused on Physics of Superconductivity and Magnetism (113 papers), Advanced Condensed Matter Physics (90 papers) and Magnetic and transport properties of perovskites and related materials (64 papers). K. Kumagai collaborates with scholars based in Japan, United States and Russia. K. Kumagai's co-authors include Yuji Matsuda, Y. Tokura, Isao Watanabe, Yasujiro Taguchi, M. B. Gaifullin, Y. Fujishima, Yutaka Okada, Y. Iye, T. Arima and K. Kadowaki and has published in prestigious journals such as Physical Review Letters, Physical review. B, Condensed matter and Physical Review B.

In The Last Decade

K. Kumagai

188 papers receiving 3.7k citations

Hit Papers

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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.

Filling dependence of electronic properties on the verge of metal–Mott-insulator transition inSr1−xLaxTiO3

1993 473 citations K. Kumagai et al. Physical Review Letters profile →

Peers

Countries citing papers authored by K. Kumagai

Since Specialization

Citations

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

Fields of papers citing papers by K. Kumagai

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K. Kumagai

This figure shows the co-authorship network connecting the top 25 collaborators of K. Kumagai. A scholar is included among the top collaborators of K. Kumagai 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 K. Kumagai. K. Kumagai 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

#	Work	Indexed citations
1	53Cr NMR study of CuCrO2 multiferroic 2015 ·Journal of Experimental and Theoretical Physics Letters ·(unknown), В. В. Оглобличев, S. V. Verkhovskiǐ, К. Н. Михалев, A. Yakubovskii, K. Kumagai, Yuji Furukawa, (unknown), (unknown), (unknown), S. N. Barilo, (unknown)	13
2	Momentum-resolved resonant inelastic X-ray scattering on a single crystal under high pressure 2013 ·Journal of Synchrotron Radiation ·Masahiro Yoshida, Kenji Ishii, Ignace Jarrige, Tetsu Watanuki, K. Kudo, Yōji Koike, K. Kumagai, Nozomu Hiraoka, Hirofumi Ishii, Ku-Ding Tsuei, J. Mizuki	1
3	Evolution of Paramagnetic Quasiparticle Excitations Emerged in the High-Field Superconducting Phase ofCeCoIn5 2011 ·Physical Review Letters ·K. Kumagai, Hiroaki Shishido, T. Shibauchi, Yuji Matsuda	47
4	Spin freezing and slow magnetization dynamics in geometrically frustrated magnetic molecules with exchange disorder 2010 ·Journal of Physics Condensed Matter ·Christian Schröder, Xikui Fang, Yuji Furukawa, Marshall Luban, R. Prozorov, F. Borsa, K. Kumagai	3
5	Kakuyanagi, Kumagai, and Matsuda Reply: 2008 ·Physical Review Letters ·Kosuke Kakuyanagi, K. Kumagai, Yuji Matsuda	1
6	Superconductivity in the complex metallic alloyβ−Al3Mg2 2007 ·Physical Review B ·E. Bauer, H. Kaldarar, Roman Lackner, H. Michor, Wilfried Steiner, Ernst‐Wilhelm Scheidt, Andrei Galatanu, F. Marabelli, (unknown), K. Kumagai, M. Feuerbacher	37
7	Local Spin Moment Distribution in Antiferromagnetic Molecular Rings Probed by NMR 2006 ·Physical Review Letters ·Edoardo Micotti, Yuji Furukawa, K. Kumagai, Stefano Carretta, A. Lascialfari, F. Borsa, Grigore A. Timco, Richard E. P. Winpenny	48
8	³¹P-NMR and µSR Studies of Filled Skutterudite Compound SmFe₄P₁₂: Evidence for Heavy Fermion Behavior with Ferromagnetic Ground State 2006 ·Journal of the Physical Society of Japan ·(unknown), Hideto Fukazawa, Yoh Kohori, Isao Watanabe, (unknown), K. Kumagai, (unknown), Chihiro Sekine, Ichimin Shirotani	3
9	Texture in the Superconducting Order Parameter ofCeCoIn5Revealed by Nuclear Magnetic Resonance 2005 ·Physical Review Letters ·Kosuke Kakuyanagi, Mika Saitoh, K. Kumagai, Shinya Takashima, M. Nohara, H. Takagi, Yuji Matsuda	132
10	Antiferromagnetic Vortex Core inTl2Ba2CuO6+δStudied by Nuclear Magnetic Resonance 2003 ·Physical Review Letters ·Kosuke Kakuyanagi, K. Kumagai, Yuji Matsuda, Masashi Hasegawa	51
11	NMR study on the metal-insulator transition of (Cu1−xNix)Ir2S4 2000 ·Physica C Superconductivity ·K. Kumagai, Kosuke Kakuyanagi, (unknown), Shoichi Nagata	10
12	A New Strontium Vanadium Sulfide, SrV2S5 1996 ·Journal of Solid State Chemistry ·Norihito Kijima, Shōzō Ikeda, (unknown), Takehiko Matsumoto, S. Tsuji, K. Kumagai, Shoichi Nagata	6
13	195Pt and 11B NMR studies of LaPt2B2C and YNi2B2C 1996 ·Physica C Superconductivity ·K. Kumagai, Shigeru Ikeda, J. Roos, M. Mali, D. Brinkmann	2
14	NMR study of magnetic properties in Ce(Pd1−xNix)2Al3 system 1995 ·Physica B Condensed Matter ·Kenji Fujiwara, Yuki Yamanashi, K. Kumagai	7
15	^63/65Cu- NQR Study of impurity-lnduced Magnetic Order in YBa₂(Cu^1-xM_x)₃O₇ (M = Fe, Co) 1990 ·Zeitschrift für Naturforschung A ·(unknown), K. Kumagai, Hironori Nakajima, (unknown)	3
16	Observation of static magnetic moment on the copper site in superconducting La2−xSrxCuO4: The nuclear heat capacity measurement 1989 ·Physica C Superconductivity ·Nobuo Wada, (unknown), Yuki Nakamura, K. Kumagai	35
17	Transport and magnetic anomalies at the structural transition to the new low temperature phase in La2−xBaxCuO4 1989 ·Solid State Communications ·M. Sera, Yoichi Ando, (unknown), K. Fukuda, M. Sato, Isao Watanabe, S. Nakashima, K. Kumagai	138
18	Cu-AFNR and NQR of the antiferromagnetic and superconducting Bi2Sr2(Ca1−xYx)Cu2O8+y 1989 ·Physica C Superconductivity ·K. Kumagai, T. Oashi, (unknown), (unknown), T. Fujita	0
19	NMR and PQR Studies on Magnetic Properties of RCu₆ (R=Ce, Nd and Sm) 1987 ·Japanese Journal of Applied Physics ·K. Kumagai, Ichiro Watanabe, Hironori Nakajima, Yoshichika Ōnuki, (unknown)	5
20	Effects of Heat-treated Structures and Cold Working on Machinability of Chromium Case-hardening Steels in Comparison with Other Carbon and Low Alloy Steels 1975 ·Transactions of the Iron and Steel Institute of Japan ·Toshiro Yamamoto, K. Kumagai	1

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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