J.A. Schaefer

2.7k total citations
100 papers, 2.3k citations indexed

About

J.A. Schaefer is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Materials Chemistry. According to data from OpenAlex, J.A. Schaefer has authored 100 papers receiving a total of 2.3k indexed citations (citations by other indexed papers that have themselves been cited), including 59 papers in Electrical and Electronic Engineering, 35 papers in Atomic and Molecular Physics, and Optics and 32 papers in Materials Chemistry. Recurrent topics in J.A. Schaefer's work include Semiconductor materials and devices (33 papers), Electron and X-Ray Spectroscopy Techniques (28 papers) and GaN-based semiconductor devices and materials (16 papers). J.A. Schaefer is often cited by papers focused on Semiconductor materials and devices (33 papers), Electron and X-Ray Spectroscopy Techniques (28 papers) and GaN-based semiconductor devices and materials (16 papers). J.A. Schaefer collaborates with scholars based in Germany, United States and Spain. J.A. Schaefer's co-authors include F. Stefan Tautz, M. Eremtchenko, Matthias Scherge, S.I.‐U. Ahmed, Andreas Opitz, Stefan Krischok, M. Sokołowski, Valery Shklover, E. Umbach and Roland J. Koch and has published in prestigious journals such as Nature, Physical review. B, Condensed matter and Applied Physics Letters.

In The Last Decade

J.A. Schaefer

99 papers receiving 2.2k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
J.A. Schaefer 1.2k 942 802 694 308 100 2.3k
C.R.M. Grovenor 960 0.8× 1.1k 1.1× 388 0.5× 555 0.8× 422 1.4× 75 2.5k
L. Vanzetti 1.3k 1.1× 1.1k 1.2× 753 0.9× 528 0.8× 183 0.6× 137 2.2k
S. B. Newcomb 1.2k 1.0× 1.0k 1.1× 435 0.5× 308 0.4× 329 1.1× 110 2.2k
M. E. Twigg 1.5k 1.3× 804 0.9× 815 1.0× 413 0.6× 461 1.5× 156 2.3k
Antonius T. J. van Helvoort 1.0k 0.9× 1.5k 1.6× 677 0.8× 1.3k 1.8× 353 1.1× 99 2.7k
Rolf E. Hummel 1.4k 1.2× 1.4k 1.5× 438 0.5× 608 0.9× 695 2.3× 130 2.6k
M. Troyon 1.0k 0.8× 1.2k 1.3× 670 0.8× 547 0.8× 288 0.9× 101 2.2k
Tansel Karabacak 1.4k 1.2× 1.2k 1.3× 382 0.5× 636 0.9× 506 1.6× 156 3.2k
E. Majková 967 0.8× 980 1.0× 490 0.6× 482 0.7× 365 1.2× 220 2.1k
G. Radnóczi 1.2k 1.0× 1.8k 1.9× 396 0.5× 390 0.6× 355 1.2× 139 2.7k

Countries citing papers authored by J.A. Schaefer

Since Specialization
Citations

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

Fields of papers citing papers by J.A. Schaefer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J.A. Schaefer

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

All Works

20 of 20 papers shown
1.
Ghodbane, S., Thomas Haensel, Yannick Coffinier, et al.. (2010). HREELS Investigation of the Surfaces of Nanocrystalline Diamond Films Oxidized by Different Processes. Langmuir. 26(24). 18798–18805. 32 indexed citations
2.
Zhang, Xiangjun, et al.. (2010). Dynamic Contact Model Based on Meniscus Adhesion For Wet Bio-Adhesive Pads: Simulation Experiments. Tribology Transactions. 53(2). 280–287. 4 indexed citations
3.
Thiele, Stefan, Alfonso Reina, Paul Healey, et al.. (2009). Engineering polycrystalline Ni films to improve thickness uniformity of the chemical-vapor-deposition-grown graphene films. Nanotechnology. 21(1). 15601–15601. 84 indexed citations
4.
Lorenz, Pierre, et al.. (2009). Analysis of the band offsets between ultrathin GaN(000) layers and sapphire (0001) by photoelectron spectroscopy. Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics. 7(2). 268–271. 4 indexed citations
5.
Himmerlich, Marcel, Roland J. Koch, V. M. Polyakov, et al.. (2009). Electron‐phonon‐plasmon interaction in MBE‐grown indium nitride – A high resolution electron energy loss spectroscopy (HREELS) study. Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics. 7(2). 173–176. 4 indexed citations
6.
Wang, Ch. Y., V. M. Polyakov, Frank Schwierz, et al.. (2008). Electron transport properties of indium oxide – indium nitride metal‐oxide‐semiconductor heterostructures. Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics. 5(2). 495–498. 6 indexed citations
7.
Liu, Yonghe, et al.. (2007). Impact of confined liquid thin film upon bioadhesive force between insect pads and smooth solid surface. Acta Physica Sinica. 56(8). 4722–4722. 4 indexed citations
8.
Tautz, F. Stefan, et al.. (2006). Strong dispersion of the surface optical phonon of silicon carbide in the near vicinity of the surface Brillouin zone center. Surface Science. 600(14). 2886–2893. 14 indexed citations
9.
Ahmed, S.I.‐U., et al.. (2006). Microtribological properties of silicon and silicon coated with self-assembled monolayers: effect of applied load and sliding velocity. Tribology Letters. 25(1). 1–7. 11 indexed citations
10.
Cimalla, I., Katja Tonisch, M. Niebelschütz, et al.. (2006). AlGaN/GaN biosensor—effect of device processing steps on the surface properties and biocompatibility. Sensors and Actuators B Chemical. 123(2). 740–748. 66 indexed citations
11.
Haensel, Thomas, et al.. (2006). Evaluation of the friction of WC/DLC solid lubricating films in vacuum. Tribology International. 39(12). 1584–1590. 19 indexed citations
12.
Fisher, Daniel C., Ingrid Repins, J.A. Schaefer, et al.. (2005). The effect of Mo morphology on the performance of Cu(In,Ga)Se/sub 2/ thin films. 394. 371–374. 6 indexed citations
13.
Cherkashinin, Gennady, et al.. (2004). Viscosity effect on GaInSn studied by XPS. Surface and Interface Analysis. 36(8). 981–985. 189 indexed citations
14.
Eremtchenko, M., D. Bauer, J.A. Schaefer, & F. Stefan Tautz. (2004). Structure, bonding, and growth at a metal–organic interface in the weak chemisorption regime: Perylene–Ag(111). Journal of materials research/Pratt's guide to venture capital sources. 19(7). 2028–2039. 26 indexed citations
15.
Eremtchenko, M., J.A. Schaefer, & F. Stefan Tautz. (2003). Understanding and tuning the epitaxy of large aromatic adsorbates by molecular design. Nature. 425(6958). 602–605. 222 indexed citations
16.
Nguyen, Luu, et al.. (2002). A new criterion for package integrity under solder reflow conditions. 478–490. 27 indexed citations
17.
Schaefer, J.A., et al.. (2002). Unoccupied electronic states and inelastic scattering effects in SEES of tungsten single crystal. Surface Science. 507-510. 192–198. 6 indexed citations
18.
19.
Engelhard, Hermann, et al.. (1999). Interface formation of Ag and Au with InP(001)2×4: a photoemission study. Applied Surface Science. 143(1-4). 104–114. 2 indexed citations
20.
Scherge, Matthias, et al.. (1998). Nanotribological Improvements due to Surface Chemistry Modification. MRS Proceedings. 522. 3 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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