M. Keim

3.1k total citations · 1 hit paper
51 papers, 2.5k citations indexed

About

M. Keim is a scholar working on Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering and Materials Chemistry. According to data from OpenAlex, M. Keim has authored 51 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 40 papers in Atomic and Molecular Physics, and Optics, 36 papers in Electrical and Electronic Engineering and 24 papers in Materials Chemistry. Recurrent topics in M. Keim's work include Semiconductor Quantum Structures and Devices (34 papers), Chalcogenide Semiconductor Thin Films (19 papers) and Quantum Dots Synthesis And Properties (17 papers). M. Keim is often cited by papers focused on Semiconductor Quantum Structures and Devices (34 papers), Chalcogenide Semiconductor Thin Films (19 papers) and Quantum Dots Synthesis And Properties (17 papers). M. Keim collaborates with scholars based in Germany, Russia and United States. M. Keim's co-authors include A. Waag, G. Reuscher, W. Ossau, L. W. Molenkamp, G. Schmidt, R. Fiederling, H.‐J. Lugauer, T. Gerhard, Frank Fischer and G. Landwehr and has published in prestigious journals such as Nature, Journal of the American Chemical Society and Physical Review Letters.

In The Last Decade

M. Keim

50 papers receiving 2.4k citations

Hit Papers

Injection and detection of a spin-polarized current in a ... 1999 2026 2008 2017 1999 400 800 1.2k
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Injection and detection of a spin-polarized current in a light-emitting diode
    1999 1.5k citations R. Fiederling, M. Keim et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
M. Keim Germany 18 1.9k 1.3k 940 435 361 51 2.5k
L. T. Baczewski Poland 20 1.1k 0.6× 680 0.5× 494 0.5× 336 0.8× 497 1.4× 108 1.8k
K. Murase Japan 25 1.1k 0.6× 901 0.7× 928 1.0× 361 0.8× 220 0.6× 132 1.8k
Stephan von Molnár United States 22 633 0.3× 512 0.4× 627 0.7× 413 0.9× 489 1.4× 45 1.4k
J. A. Gupta Canada 19 1.6k 0.9× 1.3k 1.0× 748 0.8× 271 0.6× 187 0.5× 37 2.1k
Changyoung Kim South Korea 23 1.4k 0.7× 396 0.3× 1.1k 1.1× 854 2.0× 767 2.1× 106 2.3k
D. M. Silevitch United States 20 455 0.2× 226 0.2× 472 0.5× 638 1.5× 499 1.4× 52 1.4k
H. E. Hoenig Germany 17 544 0.3× 114 0.1× 230 0.2× 797 1.8× 487 1.3× 48 1.2k
Saburo Takahashi Japan 29 2.7k 1.5× 1.0k 0.8× 742 0.8× 1.4k 3.2× 992 2.7× 74 3.3k
Youngkuk Kim South Korea 25 1.9k 1.0× 770 0.6× 2.3k 2.4× 639 1.5× 364 1.0× 94 3.2k
Andrey Danilov Sweden 20 872 0.5× 1.2k 0.9× 503 0.5× 144 0.3× 146 0.4× 56 1.7k

Countries citing papers authored by M. Keim

Since Specialization
Citations

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

Fields of papers citing papers by M. Keim

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of M. Keim

This figure shows the co-authorship network connecting the top 25 collaborators of M. Keim. A scholar is included among the top collaborators of M. Keim 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 M. Keim. M. Keim 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.
Gruber, Th., M. Keim, R. Fiederling, et al.. (2001). Electron spin manipulation using semimagnetic resonant tunneling diodes. Applied Physics Letters. 78(8). 1101–1103. 67 indexed citations
2.
Reuscher, G., G. Landwehr, M. Keim, et al.. (2000). p + -BeTe/ n + -ZnSeESAKI tunnelling heterojunctions for II-VI optoelectronic devices. Electronics Letters. 36(3). 247–249.
3.
Shubina, T. V., A. А. Ситникова, В. А. Соловьев, et al.. (2000). Defect-induced island formation in CdSe/ZnSe structures. Journal of Crystal Growth. 214-215. 727–731. 6 indexed citations
4.
Reshina, I. I., А. А. Торопов, S. V. Ivanov, et al.. (2000). Resonant Raman scattering of submono-layer CdSe/ZnSe superlattices. Journal of Crystal Growth. 214-215. 656–659. 5 indexed citations
5.
Yakovlev, D. R., А. В. Платонов, В. П. Кочерешко, et al.. (2000). Giant quantum-confined Pockels effect in type-II heterostructures. Journal of Crystal Growth. 214-215. 345–349. 3 indexed citations
6.
Waag, A., M. Keim, G. Reuscher, et al.. (2000). BeTe–ZnSe type-II heterojunctions. Journal of Crystal Growth. 214-215. 316–320. 1 indexed citations
7.
Ivanov, S. V., А. А. Торопов, T. V. Shubina, et al.. (2000). BeCdSe/(Be,Zn)Se Quantum Well as a New Active Region for Blue-Green II-VI Lasers and Light-Emitting Diodes. physica status solidi (a). 180(1). 275–280. 15 indexed citations
8.
Reuscher, G., M. Keim, H.‐J. Lugauer, A. Waag, & G. Landwehr. (2000). ZnSe/BeTe Type-II Light Emitting Diodes. physica status solidi (a). 180(1). 225–229. 1 indexed citations
9.
Titkov, A. N., T. V. Shubina, S. V. Ivanov, et al.. (1999). Cross-sectional atomic force microscopy of ZnMgSSe- and BeMgZnSe-based laser diodes. Applied Physics Letters. 75(17). 2626–2628. 10 indexed citations
10.
Платонов, А. В., В. П. Кочерешко, E. L. Ivchenko, et al.. (1999). Giant Electro-optical Anisotropy in Type-II Heterostructures. Physical Review Letters. 83(17). 3546–3549. 60 indexed citations
11.
Wagner, V., R. Kruse, Samanta da Silva Gündel, et al.. (1999). Lattice Dynamics and Bond Polarity of Be-Chalcogenides A New Class of II-VI Materials. physica status solidi (b). 215(1). 87–91. 47 indexed citations
12.
Wilmers, K., T. Wethkamp, N. Esser, et al.. (1999). VUV Ellipsometry on Beryllium Chalcogenides. physica status solidi (b). 215(1). 15–20. 10 indexed citations
13.
Максимов, А. А., S. V. Zaı̆tsev, И. И. Тартаковский, et al.. (1999). Kinetics of radiative recombination in strongly excited ZnSe/BeTe superlattices with a type-II band alignment. Applied Physics Letters. 75(9). 1231–1233. 19 indexed citations
14.
Reshina, I. I., А. А. Торопов, S. V. Ivanov, et al.. (1999). Resonance Raman scattering of single and stacked mono- and submono-layers of CdSe in ZnSe. Solid State Communications. 112(6). 351–355. 9 indexed citations
15.
Fischer, Frank, Manfred Keller, T. Gerhard, et al.. (1998). Reduction of the extended defect density in molecular beam epitaxy grown ZnSe based II-VI heterostructures by the use of a BeTe buffer layer. Journal of Applied Physics. 84(3). 1650–1654. 28 indexed citations
16.
Zehnder, U., D. R. Yakovlev, W. Ossau, et al.. (1998). Optical properties of laser diodes and heterostructures based on beryllium chalcogenides. Journal of Crystal Growth. 184-185. 541–544. 4 indexed citations
17.
Ivanov, Sergei, А. А. Торопов, S. V. Sorokin, et al.. (1998). Molecular beam epitaxy of alternating-strain ZnSe-based multilayer heterostructures for blue-green lasers. Semiconductors. 32(10). 1137–1140. 10 indexed citations
18.
Keim, M., U. Lunz, F. Fischer, A. Waag, & G. Landwehr. (1998). Resonant tunneling in ZnSe/BeTe double-barrier structures. Journal of Crystal Growth. 184-185. 806–809. 3 indexed citations
19.
Waag, A., Frank Fischer, K. Schüll, et al.. (1997). Laser diodes based on beryllium-chalcogenides. Applied Physics Letters. 70(3). 280–282. 114 indexed citations
20.
Lunz, U., M. Keim, G. Reuscher, et al.. (1996). Resonant electron tunneling in ZnSe/BeTe double-barrier, single-quantum-well heterostructures. Journal of Applied Physics. 80(11). 6329–6332. 17 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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