J. C. Walker

6.1k citations

206 papers · 5.5k · h-index 44

Impact in

Astronomy and Astrophysics top 1%
- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Astro and Planetary Science
Condensed Matter Physics top 1%
- Physics of Superconductivity and Magnetism

Papers in

Atomic and Molecular Physics, and Optics 94
- Magnetic properties of thin films 71
Electronic, Optical and Magnetic Materials 67
- Magnetic Properties and Applications 44
- Magnetic Properties of Alloys 16

Co-authors: R. W. Schunk (2 shared papers)M. H. Rees (5 shared papers)P. B. Hays (9 shared papers)D. G. Torr (15 shared papers)R. G. Burnside (10 shared papers)Louis François (2 shared papers)Marsha R. Torr (13 shared papers)Z. Q. Qiu (28 shared papers)
Journals: Journal of Applied Physics (31 papers)Journal of Geophysical Research Atmospheres (24 papers)Journal of Magnetism and Magnetic Materials (18 papers)Planetary and Space Science (15 papers)Physical Review Letters (11 papers)
Partner nations: United States Puerto Rico United Kingdom

In The Last Decade

J. C. Walker

199 papers receiving 4.5k citations

Peers

Replace E. Kankeleit with:

E. Kankeleit Germany

G. D. Price United Kingdom

M. S. Anderson United States

M. H. Hecht United States

Wendy L. Mao United States

Yingwei Fei United States

James Badro France

W. F. Kuhs Germany

Kei Hirose Japan

Wyn Williams United Kingdom

J. C. Walker relative to E. Kankeleit Germany E. Kankeleit's profile →

Citations per field

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E. Kankeleit · 1×

×2.0 3k/1k

AA

×2.0 1k/519

CMP

×6.3 1k/223

AS

×2.5 724/288

GEOPH

×1.2 1k/1k

AMPO

Citations per year

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Countries citing papers authored by J. C. Walker

Since Specialization

Citations

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

Fields of papers citing papers by J. C. Walker

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside J. C. Walker, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with J. C. Walker Line = papers co-authored together J. C. Walker links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 206 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Theoretical ion densities in the lower ionosphere Planetary and Space Science ·R. W. Schunk, J. C. Walker	1973	228
2	Modelling the Phanerozoic carbon cycle and climate; constraints from the 87 Sr/ 86 Sr isotopic ratio of seawater American Journal of Science ·Louis François, J. C. Walker	1992	176
3	Field-aligned and field-perpendicular velocities in the ionospheric F2-layer Journal of Atmospheric and Terrestrial Physics ·H. Rishbeth, S. Ganguly, J. C. Walker	1978	171
4	Reassessment of roles of oxygen and ultraviolet light in Precambrian evolution Nature ·Lynn Margulis, J. C. Walker, Mitchell Rambler	1976	158
5	The visible‐airglow experiment on Atmosphere Explorer Radio Science ·P. B. Hays, G. R. Carignan, B. C. Kennedy, G. G. Shepherd, J. C. Walker	1973	127
6	Optical observations of thermospheric dynamics at Arecibo Journal of Geophysical Research Atmospheres ·R. G. Burnside, F. A. Herrero, J. W. Meriwether, J. C. Walker	1981	123
7	Rates of fixation by lightning of carbon and nitrogen in possible primitive atmospheres Origins of Life and Evolution of Biospheres ·W. L. Chameides, J. C. Walker	1981	116
8	Tides and the midnight temperature anomaly in the thermosphere Geophysical Research Letters ·H. G. Mayr, I. Harris, N. W. Spencer, A. E. Hedin, L. E. Wharton, H. S. Porter, J. C. Walker, H. C. Carlson	1979	102
9	Increases in magnetic hyperfine field at the surface of ultra-thin epitaxial Fe films (invited) Journal of Applied Physics ·J. Tyson, A. Owens, J. C. Walker, G. Bayreuther	1981	102
10	Mössbauer studies of manganese ferrite fine particles processed by ball-milling Journal of Magnetism and Magnetic Materials ·Mohamed Mahmoud, H. H. Hamdeh, J.C. Ho, M. J. O’Shea, J. C. Walker	2000	95
11	The O I (6300 Å) airglow Reviews of Geophysics ·P. B. Hays, D. W. Rusch, R. G. Roble, J. C. Walker	1978	91
12	Mössbauer Sidebands by rf Excitation of Magnetic Materials Physical review. B, Solid state ·L. N. Pfeiffer, Neil Heiman, J. C. Walker	1972	88
13	Phanerozoic cycling of sedimentary carbonate American Journal of Science ·Bruce H. Wilkinson, J. C. Walker	1989	86
14	The diurnal variation of ionospheric temperatures Planetary and Space Science ·A. Dalgarno, Michael B. McElroy, J. C. Walker	1967	85
15	The O II (7319-7330 Å) dayglow Journal of Geophysical Research Atmospheres ·D. W. Rusch, D. G. Torr, P. B. Hays, J. C. Walker	1977	76
16	Retarding potential analyzer measurement of the effect of ion-neutral collisions on the ion velocity distribution in the auroral ionosphere Journal of Geophysical Research Atmospheres ·(unknown), W. B. Hanson, J. C. Walker	1976	76
17	Site-Specific Mössbauer Evidence of Structure-Induced Magnetic Phase Transition in fcc Fe(100) Thin Films Physical Review Letters ·D. J. Keavney, David F. Storm, J. W. Freeland, I. L. Grigorov, J. C. Walker	1995	75
18	ION AND ELECTRON HEATING BY AURORAL ELECTRIC FIELDS. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) ·M. H. Rees, J. C. Walker	1968	73
19	Secondary electrons in aurora Planetary and Space Science ·M. H. Rees, A. I. F. Stewart, J. C. Walker	1969	70
20	Ionospheric electron densities and temperatures in aurora Planetary and Space Science ·J. C. Walker, M. H. Rees	1968	68

About J. C. Walker

J. C. Walker is a scholar working on Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Astronomy and Astrophysics, Condensed Matter Physics and Atmospheric Science, having authored 206 papers that have together received 5.5k indexed citations. Recurring topics across this work include Magnetic properties of thin films (71 papers), Ionosphere and magnetosphere dynamics (47 papers), Magnetic Properties and Applications (44 papers), Physics of Superconductivity and Magnetism (31 papers), Atmospheric Ozone and Climate (26 papers), Solar and Space Plasma Dynamics (25 papers), Astro and Planetary Science (18 papers) and Magnetic Properties of Alloys (16 papers). The work is most often cited by research in Astronomy and Astrophysics (2.6k citations), Condensed Matter Physics (1.0k citations), Atmospheric Science (1.4k citations), Geophysics (724 citations) and Atomic and Molecular Physics, and Optics (1.4k citations). J. C. Walker has collaborated with scholars based in United States, Puerto Rico and United Kingdom. Frequent co-authors include R. W. Schunk, M. H. Rees, P. B. Hays, D. G. Torr, R. G. Burnside, Louis François, Marsha R. Torr, Z. Q. Qiu, Hong Tang and H. Rishbeth. Their work appears in journals such as Journal of Applied Physics, Journal of Geophysical Research Atmospheres, Journal of Magnetism and Magnetic Materials, Planetary and Space Science and Physical Review Letters.

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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J. C. Walker

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About J. C. Walker

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