R. Ludeke

4.9k total citations
118 papers, 3.9k citations indexed

About

R. Ludeke is a scholar working on Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering and Surfaces, Coatings and Films. According to data from OpenAlex, R. Ludeke has authored 118 papers receiving a total of 3.9k indexed citations (citations by other indexed papers that have themselves been cited), including 81 papers in Atomic and Molecular Physics, and Optics, 75 papers in Electrical and Electronic Engineering and 41 papers in Surfaces, Coatings and Films. Recurrent topics in R. Ludeke's work include Semiconductor materials and devices (51 papers), Electron and X-Ray Spectroscopy Techniques (41 papers) and Surface and Thin Film Phenomena (37 papers). R. Ludeke is often cited by papers focused on Semiconductor materials and devices (51 papers), Electron and X-Ray Spectroscopy Techniques (41 papers) and Surface and Thin Film Phenomena (37 papers). R. Ludeke collaborates with scholars based in United States, Canada and Germany. R. Ludeke's co-authors include L. Esaki, A. Koma, G. Landgren, L. L. Chang, M. Prietsch, E. Cartier, A. Taleb‐Ibrahimi, T.‐C. Chiang, G. Hughes and A. B. McLean and has published in prestigious journals such as Physical Review Letters, Physical review. B, Condensed matter and Applied Physics Letters.

In The Last Decade

R. Ludeke

118 papers receiving 3.6k citations

Author Peers

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

Author Last Decade Papers Cites
R. Ludeke 2.7k 2.7k 1.1k 858 392 118 3.9k
G. V. Hansson 3.2k 1.2× 2.1k 0.8× 1.3k 1.1× 1.2k 1.5× 556 1.4× 198 4.3k
J.H. Neave 3.6k 1.3× 2.4k 0.9× 1.1k 1.0× 1.4k 1.6× 754 1.9× 111 4.8k
J. Nogami 3.4k 1.2× 1.2k 0.4× 753 0.7× 815 0.9× 916 2.3× 120 3.9k
R. I. G. Uhrberg 4.7k 1.7× 2.6k 1.0× 1.8k 1.5× 1.8k 2.1× 533 1.4× 162 6.1k
P. W. Chye 2.2k 0.8× 2.1k 0.8× 796 0.7× 702 0.8× 421 1.1× 55 3.1k
H.‐J. Gossmann 2.3k 0.9× 3.7k 1.4× 482 0.4× 1.3k 1.6× 381 1.0× 127 4.8k
D. Haneman 1.6k 0.6× 2.0k 0.7× 702 0.6× 1.7k 2.0× 389 1.0× 217 3.3k
R. S. Bauer 1.5k 0.6× 1.2k 0.5× 819 0.7× 763 0.9× 240 0.6× 96 2.5k
H. H. Farrell 1.5k 0.6× 920 0.3× 592 0.5× 880 1.0× 352 0.9× 80 2.4k
S. Kono 2.6k 1.0× 1.2k 0.5× 1.8k 1.6× 1.4k 1.6× 329 0.8× 126 3.9k

Countries citing papers authored by R. Ludeke

Since Specialization
Citations

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

Fields of papers citing papers by R. Ludeke

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. Ludeke

This figure shows the co-authorship network connecting the top 25 collaborators of R. Ludeke. A scholar is included among the top collaborators of R. Ludeke 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 R. Ludeke. R. Ludeke 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.
Ludeke, R. & P. Stephan Heyns. (2023). Towards a Deep Reinforcement Learning based approach for real time decision making and resource allocation for Prognostics and Health Management applications. UpSpace Institutional Repository (University of Pretoria). 20–29. 2 indexed citations
2.
Chen, Liwei, R. Ludeke, Xiaodong Cui, et al.. (2005). Electrostatic Field and Partial Fermi Level Pinning at the Pentacene−SiO2Interface. The Journal of Physical Chemistry B. 109(5). 1834–1838. 39 indexed citations
3.
Ludeke, R., Patrick Lysaght, E. Cartier, et al.. (2004). Surface potential and morphology issues of annealed (HfO2)x(SiO2)1−x gate oxides. Journal of Vacuum Science & Technology B Microelectronics and Nanometer Structures Processing Measurement and Phenomena. 22(4). 2113–2120. 6 indexed citations
4.
Ludeke, R. & Evgeni Gusev. (2004). Structural and surface potential characterization of annealed HfO2 and (HfO2)x(SiO2)1-x films. Journal of Applied Physics. 96(4). 2365–2373. 18 indexed citations
5.
Bauer, A. & R. Ludeke. (1994). Dynamical transmission effects and impact ionization in hot-electron transport across NiSi2/Si(111)7×7 interfaces. Journal of Vacuum Science & Technology B Microelectronics and Nanometer Structures Processing Measurement and Phenomena. 12(4). 2667–2674. 5 indexed citations
6.
Ludeke, R., M. Prietsch, & A. Samsavar. (1991). Ballistic electron emission spectroscopy of metals on GaP(110). Journal of Vacuum Science & Technology B Microelectronics and Nanometer Structures Processing Measurement and Phenomena. 9(4). 2342–2348. 43 indexed citations
7.
Ludeke, R. & M. Prietsch. (1991). Ballistic electron emission spectroscopy of noble metal–GaP(110) interfaces. Journal of Vacuum Science & Technology A Vacuum Surfaces and Films. 9(3). 885–890. 23 indexed citations
8.
Ludeke, R., A. B. McLean, & A. Taleb‐Ibrahimi. (1990). Electronic properties of nascent GaP(110)–noble-metal interfaces. Physical review. B, Condensed matter. 42(5). 2982–2995. 14 indexed citations
9.
Ludeke, R., A. Taleb‐Ibrahimi, & G. Jézéquel. (1990). Delocalization of defects: A new model for the Schottky barrier. Applied Surface Science. 41-42. 151–158. 4 indexed citations
10.
Feenstra, R. M., Pär Mårtensson, & R. Ludeke. (1988). Spectroscopy of Metal Adsorbates on the GaAs(110) Surface Studied with the Scanning Tunneling Microscope. MRS Proceedings. 138. 3 indexed citations
11.
Schäffler, F., W. Drube, G. Hughes, et al.. (1987). Summary Abstract: Metal-induced impurity states at the InP/transition-metal interface. Journal of Vacuum Science & Technology A Vacuum Surfaces and Films. 5(4). 1528–1530. 8 indexed citations
12.
Hughes, G. & R. Ludeke. (1986). O 1s studies of the oxidation of InP(110) and GaAs(110) surfaces. Journal of Vacuum Science & Technology B Microelectronics Processing and Phenomena. 4(4). 1109–1114. 51 indexed citations
13.
Hughes, G., R. Ludeke, F. Schäffler, & D. Rieger. (1986). Transition metals on GaAs(110): A case for extrinsic surface states. Journal of Vacuum Science & Technology B Microelectronics Processing and Phenomena. 4(4). 924–930. 31 indexed citations
14.
15.
Ludeke, R., T.‐C. Chiang, & D. E. East̀man. (1983). Core-level photoemission studies of MBE-grown semiconductor surfaces. Physica B+C. 117-118. 819–821. 23 indexed citations
16.
Ludeke, R.. (1983). The formation of interfaces on GaAs and related semiconductors: A reassessment. Surface Science. 132(1-3). 143–168. 52 indexed citations
17.
Chu, W. K., F. W. Saris, C. A. Chang, R. Ludeke, & L. Esaki. (1982). Ion-beam crystallography of InAs-GaSb superlattices. Physical review. B, Condensed matter. 26(4). 1999–2010. 37 indexed citations
18.
Saris, F. W., W. K. Chu, C. A. Chang, R. Ludeke, & L. Esaki. (1980). Ion backscattering and channeling study of InAs-GaSb superlattices. Applied Physics Letters. 37(10). 931–933. 40 indexed citations
19.
Ludeke, R.. (1977). The oxidation of the GaAs (110) surface. Solid State Communications. 21(8). 815–818. 39 indexed citations
20.
Ludeke, R. & A. Koma. (1975). Surface studies on clean and oxygen-exposed GaAs and Ge surfaces by low-energy electron loss spectroscopy. 5(3). 259–271. 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.

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