C. Keller

616 total citations
17 papers, 540 citations indexed

About

C. Keller is a scholar working on Atomic and Molecular Physics, and Optics, Materials Chemistry and Surfaces, Coatings and Films. According to data from OpenAlex, C. Keller has authored 17 papers receiving a total of 540 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Atomic and Molecular Physics, and Optics, 7 papers in Materials Chemistry and 5 papers in Surfaces, Coatings and Films. Recurrent topics in C. Keller's work include Advanced Chemical Physics Studies (11 papers), Spectroscopy and Quantum Chemical Studies (5 papers) and Catalytic Processes in Materials Science (5 papers). C. Keller is often cited by papers focused on Advanced Chemical Physics Studies (11 papers), Spectroscopy and Quantum Chemical Studies (5 papers) and Catalytic Processes in Materials Science (5 papers). C. Keller collaborates with scholars based in Germany, United States and Italy. C. Keller's co-authors include D. Menzel, W. Würth, M. Stichler, Silvano Lizzit, Giovanni Comelli, Friedrich Esch, Alessandro Baraldi, B. H. Cooper, Catherine Stampfl and M. V. Ganduglia-Pirovano and has published in prestigious journals such as Physical Review Letters, The Journal of Chemical Physics and Physical review. B, Condensed matter.

In The Last Decade

C. Keller

17 papers receiving 532 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
C. Keller Germany	13	359	211	161	105	72	17	540
P. Zebisch Germany	14	381 1.1×	284 1.3×	170 1.1×	100 1.0×	68 0.9×	26	584
C. Astaldi Italy	16	477 1.3×	324 1.5×	156 1.0×	171 1.6×	47 0.7×	28	671
M. Stichler Germany	16	440 1.2×	339 1.6×	209 1.3×	109 1.0×	67 0.9×	21	687
E. Holub‐Krappe Germany	8	245 0.7×	110 0.5×	59 0.4×	92 0.9×	35 0.5×	12	349
Karl Rudolf Bauchspieß Germany	7	184 0.5×	241 1.1×	169 1.0×	52 0.5×	58 0.8×	11	440
L. Sanche Canada	10	343 1.0×	94 0.4×	153 1.0×	152 1.4×	51 0.7×	13	495
A. Giertz Sweden	10	261 0.7×	209 1.0×	70 0.4×	42 0.4×	47 0.7×	12	413
M. Creuzburg Germany	13	343 1.0×	159 0.8×	105 0.7×	131 1.2×	75 1.0×	24	510
B. S. Itchkawitz United States	14	316 0.9×	111 0.5×	70 0.4×	78 0.7×	79 1.1×	17	420
M. Iwan Germany	12	359 1.0×	227 1.1×	93 0.6×	178 1.7×	91 1.3×	16	544

Countries citing papers authored by C. Keller

Since Specialization

Citations

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

Fields of papers citing papers by C. Keller

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of C. Keller

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

All Works

Sort: Min cites: Since: Top N: Style:

17 of 17 papers shown

Föhlisch, Alexander, W. Würth, M. Stichler, C. Keller, & Anders Nilsson. (2004). X-ray emission spectroscopy of (23×23)R30°CO/Ru(0001): Comparison to c(2×2)CO/Ni(100) and c(2×2)CO/Cu(100). The Journal of Chemical Physics. 121(10). 4848–4852. 12 indexed citations

Keller, C., M. Stichler, Andreas H. Fink, et al.. (2004). Electronic transfer processes studied at different time scales by selective resonant core hole excitation of adsorbed molecules. Applied Physics A. 78(2). 125–129. 8 indexed citations

Lizzit, Silvano, Alessandro Baraldi, Amela Groso, et al.. (2001). Surface core-level shifts of clean and oxygen-covered Ru(0001). Physical review. B, Condensed matter. 63(20). 157 indexed citations

Fink, Andreas H., W. Widdra, W. Würth, et al.. (2001). Core-level spectroscopy of hydrocarbons adsorbed on Si(100)-(2×1): A systematic comparison. Physical review. B, Condensed matter. 64(4). 45 indexed citations

Lavery, Andone C., et al.. (2000). Charge transfer and memory loss in keV oxygen-ion scattering from Cu(001). Physical review. B, Condensed matter. 61(3). 2291–2301. 14 indexed citations

Stichler, M., C. Keller, Clemens Heske, et al.. (2000). X-ray emission spectroscopy of NO adsorbates on Ru(001). Surface Science. 448(2-3). 164–178. 15 indexed citations

Föhlisch, Alexander, Jørgen Bo Hasselstrøm, Olof Karis, et al.. (1999). Franck–Condon breakdown in core-level photoelectron spectroscopy of chemisorbed CO. Chemical Physics Letters. 315(3-4). 194–200. 18 indexed citations

Keller, C., M. Stichler, Giovanni Comelli, et al.. (1999). Nuclear dynamics during the N1sautoionization of physisorbedN2. Physical review. B, Condensed matter. 60(23). 16143–16150. 13 indexed citations

Staufer, Markus, U. Birkenheuer, Notker Rösch, et al.. (1999). Interpretation of x-ray emission spectra: NO adsorbed on Ru(001). The Journal of Chemical Physics. 111(10). 4704–4713. 16 indexed citations

10.

Keller, C., M. Stichler, Giovanni Comelli, et al.. (1998). Ultrafast Charge Transfer Times of Chemisorbed Species from Auger Resonant Raman Studies. Physical Review Letters. 80(8). 1774–1777. 86 indexed citations

11.

Frigo, S. P., et al.. (1998). Observation of Neutral Atomic Fragments for Specific1sCore Excitations of an Adsorbed Molecule. Physical Review Letters. 80(13). 2813–2816. 20 indexed citations

12.

Keller, C., Andone C. Lavery, & B. H. Cooper. (1998). Positive- and negative-ion formation in low-energyO+-Cu(001) scattering. Physical review. B, Condensed matter. 58(16). 10959–10968. 6 indexed citations

13.

Keller, C., M. Stichler, Giovanni Comelli, et al.. (1998). Femtosecond dynamics of adsorbate charge-transfer processes as probed by high-resolution core-level spectroscopy. Physical review. B, Condensed matter. 57(19). 11951–11954. 62 indexed citations

14.

Keller, C., M. Stichler, Giovanni Comelli, et al.. (1998). Resonant auger processes in adsorbates. Journal of Electron Spectroscopy and Related Phenomena. 93(1-3). 135–141. 20 indexed citations

15.

Keller, C., et al.. (1997). Condensation effects in K-shell excitation spectra of neon films. Physical review. B, Condensed matter. 55(15). 9387–9390. 9 indexed citations

16.

Keller, C. & B. H. Cooper. (1996). Quantitative detection of low energy positive and negative ions with a channel electron multiplier. Review of Scientific Instruments. 67(8). 2760–2764. 6 indexed citations

17.

Keller, C., et al.. (1995). Trajectory-Dependent Charge Exchange in Alkali Ion Scattering from a Clean Metal Surface. Physical Review Letters. 75(8). 1654–1657. 33 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.

Explore authors with similar magnitude of impact