J. M. Barker

682 total citations
15 papers, 539 citations indexed

About

J. M. Barker is a scholar working on Condensed Matter Physics, Electrical and Electronic Engineering and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, J. M. Barker has authored 15 papers receiving a total of 539 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Condensed Matter Physics, 8 papers in Electrical and Electronic Engineering and 7 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in J. M. Barker's work include GaN-based semiconductor devices and materials (14 papers), Ga2O3 and related materials (7 papers) and Advancements in Semiconductor Devices and Circuit Design (6 papers). J. M. Barker is often cited by papers focused on GaN-based semiconductor devices and materials (14 papers), Ga2O3 and related materials (7 papers) and Advancements in Semiconductor Devices and Circuit Design (6 papers). J. M. Barker collaborates with scholars based in United States. J. M. Barker's co-authors include Norman A. Sanford, Kris A. Bertness, Alexana Roshko, Albert V. Davydov, John B. Schlager, D. K. Ferry, R. J. Shul, Daniel Koleske, Lawrence H. Robins and И. С. Левин and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Journal of Physics Condensed Matter.

In The Last Decade

J. M. Barker

15 papers receiving 511 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J. M. Barker United States	10	463	246	245	178	177	15	539
Jianping Zeng China	9	327 0.7×	167 0.7×	226 0.9×	133 0.7×	120 0.7×	32	418
C. J. Collins United States	10	351 0.8×	129 0.5×	265 1.1×	143 0.8×	193 1.1×	18	483
Sibel Gökden Türkiye	12	495 1.1×	253 1.0×	318 1.3×	46 0.3×	221 1.2×	21	577
Anand V. Sampath United States	13	469 1.0×	217 0.9×	297 1.2×	138 0.8×	182 1.0×	69	553
Hongbo Yu Türkiye	14	360 0.8×	195 0.8×	233 1.0×	83 0.5×	141 0.8×	29	423
M. Antcliffe United States	16	565 1.2×	255 1.0×	199 0.8×	102 0.6×	707 4.0×	27	884
G. Zhao United States	13	268 0.6×	209 0.8×	189 0.8×	38 0.2×	251 1.4×	30	453
P. Javorka Germany	14	501 1.1×	122 0.5×	199 0.8×	46 0.3×	443 2.5×	46	580
Kamal Hussain United States	12	307 0.7×	137 0.6×	208 0.8×	57 0.3×	279 1.6×	48	463
Torsten Langer Germany	10	335 0.7×	187 0.8×	146 0.6×	64 0.4×	131 0.7×	18	398

Countries citing papers authored by J. M. Barker

Since Specialization

Citations

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

Fields of papers citing papers by J. M. Barker

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. M. Barker

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

All Works

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15 of 15 papers shown

Robins, Lawrence H., Kris A. Bertness, J. M. Barker, Norman A. Sanford, & John B. Schlager. (2007). Optical and structural study of GaN nanowires grown by catalyst-free molecular beam epitaxy. II. Sub-band-gap luminescence and electron irradiation effects. Journal of Applied Physics. 101(11). 30 indexed citations

Robins, Lawrence H., Kris A. Bertness, J. M. Barker, Norman A. Sanford, & John B. Schlager. (2007). Optical and structural study of GaN nanowires grown by catalyst-free molecular beam epitaxy. I. Near-band-edge luminescence and strain effects. Journal of Applied Physics. 101(11). 49 indexed citations

Schlager, John B., Norman A. Sanford, Kris A. Bertness, et al.. (2006). Polarization-resolved photoluminescence study of individual GaN nanowires grown by catalyst-free molecular beam epitaxy. Applied Physics Letters. 88(21). 55 indexed citations

Schlager, John B., et al.. (2006). Polarization-resolved photoluminescence study of individual GaN nanowires grown by catalyst-free MBE. 2 indexed citations

Bertness, Kris A., Norman A. Sanford, J. M. Barker, et al.. (2006). Catalyst-free growth of GaN nanowires. Journal of Electronic Materials. 35(4). 576–580. 79 indexed citations

Bertness, Kris A., Alexana Roshko, Norman A. Sanford, J. M. Barker, & Albert V. Davydov. (2006). Spontaneously grown GaN and AlGaN nanowires. Journal of Crystal Growth. 287(2). 522–527. 131 indexed citations

Tsen, K. T., et al.. (2005). Transient picosecond Raman studies of electron and hole velocity overshoots in a GaAs-based p–i–n semiconductor nanostructure. Journal of Physics Condensed Matter. 17(10). 1679–1686. 1 indexed citations

Barker, J. M., D. K. Ferry, Daniel Koleske, & R. J. Shul. (2005). Bulk GaN and AlGaN∕GaN heterostructure drift velocity measurements and comparison to theoretical models. Journal of Applied Physics. 97(6). 69 indexed citations

Bertness, K. A., John B. Schlager, Norman A. Sanford, et al.. (2005). High Degree of Crystalline Perfection in Spontaneously Grown GaN Nanowires. MRS Proceedings. 892(1). 10 indexed citations

10.

Barker, J. M., D. K. Ferry, S. M. Goodnick, et al.. (2005). High‐field electron transport in AlGaN/GaN heterostructures. Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics. 2(7). 2564–2568. 7 indexed citations

11.

Barker, J. M., D. K. Ferry, S. M. Goodnick, et al.. (2004). High field transport in GaN/AlGaN heterostructures. Journal of Vacuum Science & Technology B Microelectronics and Nanometer Structures Processing Measurement and Phenomena. 22(4). 2045–2050. 39 indexed citations

12.

Barker, J. M., D. K. Ferry, Stephen M. Goodnick, et al.. (2004). Effects of surface treatment on the velocity–field characteristics of AlGaN/GaN heterostructures. Semiconductor Science and Technology. 19(4). S478–S480. 6 indexed citations

13.

Barker, J. M., R. Akis, D. K. Ferry, et al.. (2002). High-field transport studies of gan. Physica B Condensed Matter. 314(1-4). 39–41. 28 indexed citations

14.

Barker, J. M., D. K. Ferry, Stephen M. Goodnick, et al.. (2002). Measurements of the velocity-field characteristic in AlGaN/GaN heterostructures. Microelectronic Engineering. 63(1-3). 193–197. 8 indexed citations

15.

Barker, J. M., et al.. (2002). High Field Transport Studies of GaN. physica status solidi (a). 190(1). 263–270. 25 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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