Jun Hayakawa

4.5k total citations · 2 hit papers
47 papers, 3.6k citations indexed

About

Jun Hayakawa is a scholar working on Atomic and Molecular Physics, and Optics, Materials Chemistry and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, Jun Hayakawa has authored 47 papers receiving a total of 3.6k indexed citations (citations by other indexed papers that have themselves been cited), including 38 papers in Atomic and Molecular Physics, and Optics, 23 papers in Materials Chemistry and 17 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in Jun Hayakawa's work include Magnetic properties of thin films (33 papers), Advanced Thermoelectric Materials and Devices (12 papers) and Quantum and electron transport phenomena (10 papers). Jun Hayakawa is often cited by papers focused on Magnetic properties of thin films (33 papers), Advanced Thermoelectric Materials and Devices (12 papers) and Quantum and electron transport phenomena (10 papers). Jun Hayakawa collaborates with scholars based in Japan, Poland and United Kingdom. Jun Hayakawa's co-authors include Shoji Ikeda, Hideo Ohno, F. Matsukura, K. Miura, H. Hasegawa, Hiromasa Takahashi, Masakiyo Tsunoda, Yoshito Ashizawa, Young Min Lee and Takahiro Hanyu and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Physical Review B.

In The Last Decade

Jun Hayakawa

46 papers receiving 3.5k citations

Hit Papers

2 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.

Tunnel magnetoresistance of 604% at 300K by suppression of Ta diffusion in CoFeB∕MgO∕CoFeB pseudo-spin-valves annealed at high temperature

2008 1.2k citations Shoji Ikeda, Jun Hayakawa et al. Applied Physics Letters profile →
Magnetic Tunnel Junctions for Spintronic Memories and Beyond

2007 416 citations Shoji Ikeda, Jun Hayakawa et al. IEEE Transactions on Electron Devices profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jun Hayakawa Japan	20	2.7k	1.7k	1.4k	1.2k	556	47	3.6k
K. Miura Japan	28	2.8k 1.0×	1.7k 1.0×	1.4k 1.0×	1.0k 0.9×	558 1.0×	76	3.6k
Claude Chappert France	27	2.6k 0.9×	2.5k 1.5×	1.1k 0.8×	1.0k 0.9×	566 1.0×	60	4.3k
D. C. Worledge United States	30	2.9k 1.1×	1.6k 1.0×	1.8k 1.3×	1.1k 0.9×	1.1k 2.1×	79	3.9k
Yiming Huai United States	24	1.9k 0.7×	1.1k 0.7×	887 0.6×	561 0.5×	512 0.9×	85	2.4k
G. Hu United States	30	2.6k 0.9×	1.2k 0.7×	1.5k 1.0×	1.3k 1.1×	707 1.3×	65	3.5k
Tim Mewes United States	29	1.9k 0.7×	786 0.5×	1.3k 0.9×	693 0.6×	549 1.0×	101	2.4k
J. Nowak United States	24	2.6k 1.0×	1.3k 0.8×	1.2k 0.8×	895 0.7×	722 1.3×	54	3.1k
H. Hasegawa Japan	15	1.6k 0.6×	1.1k 0.6×	750 0.5×	700 0.6×	468 0.8×	59	2.2k
J. Langer United States	28	2.4k 0.9×	1.4k 0.8×	1.1k 0.7×	647 0.5×	677 1.2×	83	2.9k
S. N. Piramanayagam Singapore	27	2.9k 1.1×	1.3k 0.8×	1.8k 1.2×	1.2k 1.0×	823 1.5×	219	4.0k

Countries citing papers authored by Jun Hayakawa

Since Specialization

Citations

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

Fields of papers citing papers by Jun Hayakawa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jun Hayakawa

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

Kurosaki, Y., et al.. (2020). Enhancement of thermoelectric figure of merit by using nonequilibrium state between electrons and phonons. Applied Physics Letters. 117(8).

Kurosaki, Y., et al.. (2019). Effects of Ge addition on thermoelectric properties in a nanocomposite of MnSi and SiGe thin films. Materialia. 7. 100374–100374. 4 indexed citations

Tanigaki, Toshiaki, Tetsuya Akashi, Akira Sugawara, et al.. (2017). Magnetic field observations in CoFeB/Ta layers with 0.67-nm resolution by electron holography. Scientific Reports. 7(1). 16598–16598. 19 indexed citations

Ohishi, Yuji, Hiroaki Muta, Shinşuke Yamanaka, et al.. (2017). Ytterbium Silicide (YbSi₂): A Promising Thermoelectric Material with a High Power Factor at Room Temperature. physica status solidi (RRL) - Rapid Research Letters. 12(2). 14 indexed citations

Yamamoto, Hiroyuki, et al.. (2012). Co 20 Fe 60 B 20 フリーレイヤーの磁気異方性の面内に容易軸を有するMgOベース磁気トンネル接合におけるキャップ層に対する依存性. Applied Physics Express. 5(5). 1–53002. 1 indexed citations

Gan, Huadong, Shoji Ikeda, Michihiko Yamanouchi, et al.. (2011). Tunnel Magnetoresistance Properties of Double MgO-Barrier Magnetic Tunnel Junctions With Different Free-Layer Alloy Compositions and Structures. IEEE Transactions on Magnetics. 47(6). 1567–1570. 10 indexed citations

Mizunuma, K., Michihiko Yamanouchi, Shoji Ikeda, et al.. (2011). Pd Layer Thickness Dependence of Tunnel Magnetoresistance Properties in CoFeB/MgO-Based Magnetic Tunnel Junctions with Perpendicular Anisotropy CoFe/Pd Multilayers. Applied Physics Express. 4(2). 23002–23002. 44 indexed citations

Mizunuma, K., Shoji Ikeda, H. Sato, et al.. (2011). Tunnel magnetoresistance properties and annealing stability in perpendicular anisotropy MgO-based magnetic tunnel junctions with different stack structures. Journal of Applied Physics. 109(7). 13 indexed citations

Endoh, Tetsuo, K. Miura, Jun Hayakawa, et al.. (2010). 相補型金属-酸化物-半導体回路のバックエンド金属線上に集積した磁気トンネル接合の性能. Japanese Journal of Applied Physics. 49. 1–4. 3 indexed citations

10.

Takemura, R., T. Kawahara, K. Miura, et al.. (2010). A 32-Mb SPRAM With 2T1R Memory Cell, Localized Bi-Directional Write Driver and `1'/`0' Dual-Array Equalized Reference Scheme. IEEE Journal of Solid-State Circuits. 45(4). 869–879. 107 indexed citations

11.

Gan, Huadong, Shoji Ikeda, Jun Hayakawa, et al.. (2010). Tunnel magnetoresistance properties and film structures of double MgO barrier magnetic tunnel junctions. Applied Physics Letters. 96(19). 46 indexed citations

12.

Suzuki, Daisuke, Masanori Natsui, Shoji Ikeda, et al.. (2009). Fabrication of a Nonvolatile Lookup-Table Circuit Chip Using Magneto/Semiconductor-Hybrid Structure for an Immediate-Power-Up Field Programmable Gate Array. IEICE Technical Report; IEICE Tech. Rep.. 110(9). 47–52. 35 indexed citations

13.

Matsunaga, Sachihiro, Jun Hayakawa, Shoji Ikeda, et al.. (2009). MTJ-based nonvolatile logic-in-memory circuit, future prospects and issues. 433–435. 53 indexed citations

14.

Mizunuma, K., Shoji Ikeda, H. Yamamoto, et al.. (2009). MgO barrier-perpendicular magnetic tunnel junctions with CoFe/Pd multilayers and ferromagnetic insertion layers. Applied Physics Letters. 95(23). 121 indexed citations

15.

Park, Jiho, Shoji Ikeda, Hirotsugu Yamamoto, et al.. (2009). Perpendicular Magnetic Tunnel Junctions with CoFe/Pd Multilayer Electrodes and an MgO Barrier. IEEE Transactions on Magnetics. 45(10). 3476–3479. 20 indexed citations

16.

Matsunaga, Shoun, Jun Hayakawa, Shoji Ikeda, et al.. (2008). Fabrication of a Nonvolatile Full Adder Based on Logic-in-Memory Architecture Using Magnetic Tunnel Junctions. Applied Physics Express. 1. 91301–91301. 268 indexed citations

17.

Ikeda, Shoji, Jun Hayakawa, Young Min Lee, et al.. (2007). Magnetic Tunnel Junctions for Spintronic Memories and Beyond. IEEE Transactions on Electron Devices. 54(5). 991–1002. 416 indexed citations breakdown →

18.

Hayakawa, Jun, Shoji Ikeda, Young Min Lee, et al.. (2005). Current-Driven Magnetization Switching in CoFeB/MgO/CoFeB Magnetic Tunnel Junctions. Japanese Journal of Applied Physics. 44(9L). L1267–L1267. 177 indexed citations

19.

Soeya, Susumu, Jun Hayakawa, Hiromasa Takahashi, et al.. (2002). Development of half-metallic ultrathin Fe3O4 films for spin-transport devices. Applied Physics Letters. 80(5). 823–825. 179 indexed citations

20.

Onogi, T., et al.. (2001). Electronic and Magnetic Structures in Slab Models Including Al/Co and O/Co Interfaces. Japanese Journal of Applied Physics. 40(7R). 4528–4528. 4 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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