K.‐U. Riemann

3.0k total citations · 1 hit paper
51 papers, 2.6k citations indexed

About

K.‐U. Riemann is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Nuclear and High Energy Physics. According to data from OpenAlex, K.‐U. Riemann has authored 51 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 47 papers in Electrical and Electronic Engineering, 33 papers in Atomic and Molecular Physics, and Optics and 22 papers in Nuclear and High Energy Physics. Recurrent topics in K.‐U. Riemann's work include Plasma Diagnostics and Applications (46 papers), Dust and Plasma Wave Phenomena (24 papers) and Magnetic confinement fusion research (22 papers). K.‐U. Riemann is often cited by papers focused on Plasma Diagnostics and Applications (46 papers), Dust and Plasma Wave Phenomena (24 papers) and Magnetic confinement fusion research (22 papers). K.‐U. Riemann collaborates with scholars based in Germany, Austria and Russia. K.‐U. Riemann's co-authors include Holger Schmitz, S. Kuhn, D. Tskhakaya, L. D. Tsendin, N. Jelić, G. Ecker, P. Meyer, H. P. Berg, Shawn Biehler and J. Duhovnik and has published in prestigious journals such as Journal of Applied Physics, Physical Review A and Journal of Physics D Applied Physics.

In The Last Decade

K.‐U. Riemann

51 papers receiving 2.5k citations

Hit Papers

align trajectories

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.

The Bohm criterion and sheath formation

1991 844 citations K.‐U. Riemann Journal of Physics D Applied Physics profile →

Peers

K.‐U. Riemann

EEE

AMPO

NHEP

MM

AA

Ralf Peter Brinkmann Germany

D. Tskhakaya Austria

Trevor Lafleur France

P. F. Ottinger United States

A. Fruchtman Israel

Scott Baalrud United States

J. L. Giuliani United States

M. Surendra United States

A. Fisher United States

R. J. Commisso United States

Ralf Peter Brinkmann Germany

K.‐U. Riemann

3.1k ×1.3

EEE

1.3k ×0.8

AMPO

420 ×0.5

NHEP

1.0k ×1.2

MM

198 ×0.6

AA

Citations per year, relative to K.‐U. Riemann K.‐U. Riemann (= 1×) peers Ralf Peter Brinkmann

Countries citing papers authored by K.‐U. Riemann

Since Specialization

Citations

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

Fields of papers citing papers by K.‐U. Riemann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K.‐U. Riemann. 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 K.‐U. Riemann. The network helps show where K.‐U. Riemann may publish in the future.

Co-authorship network of co-authors of K.‐U. Riemann

This figure shows the co-authorship network connecting the top 25 collaborators of K.‐U. Riemann. A scholar is included among the top collaborators of K.‐U. Riemann 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 K.‐U. Riemann. K.‐U. Riemann 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:

20 of 20 papers shown

1.

Riemann, K.‐U.. (2008). Plasma and sheath. Plasma Sources Science and Technology. 18(1). 14006–14006. 47 indexed citations

2.

Jelić, N., et al.. (2007). Fluid and kinetic parameters near the plasma-sheath boundary for finite Debye lengths. Physics of Plasmas. 14(10). 37 indexed citations

3.

Riemann, K.‐U., et al.. (2005). The plasma–sheath matching problem. Plasma Physics and Controlled Fusion. 47(11). 1949–1970. 67 indexed citations

4.

Riemann, K.‐U., et al.. (2004). Relaxation of a collisionless ion matrix sheath. Journal of Applied Physics. 95(9). 4565–4574. 8 indexed citations

5.

Riemann, K.‐U.. (2002). Transition from a collisionless to a collisional sheath. APS. 1 indexed citations

6.

Schmitz, Holger & K.‐U. Riemann. (2001). . Journal of Physics D Applied Physics. 34(8). 1193–1202. 32 indexed citations

7.

Riemann, K.‐U.. (2000). Theory of the Plasma-Sheath Transition. Technical Physics. 41(1). 89–121. 21 indexed citations

8.

Riemann, K.‐U., et al.. (1999). Kinetic analysis of the plasma boundary layer in an oblique magnetic field. Physics of Plasmas. 6(6). 2409–2417. 23 indexed citations

9.

Riemann, K.‐U.. (1997). The influence of collisions on the plasma sheath transition. Physics of Plasmas. 4(11). 4158–4166. 199 indexed citations

10.

Riemann, K.‐U. & P. Meyer. (1996). Comment on ‘‘Bohm criterion for the collisional sheath’’ [Phys. Plasmas 3, 1459 (1996)]. Physics of Plasmas. 3(12). 4751–4753. 25 indexed citations

11.

Schmitz, Holger, et al.. (1996). Theory of the collisional presheath in a magnetic field parallel to the wall. Physics of Plasmas. 3(7). 2486–2495. 29 indexed citations

12.

Riemann, K.‐U.. (1995). The Bohm criterion and boundary conditions for a multicomponent system. IEEE Transactions on Plasma Science. 23(4). 709–716. 184 indexed citations

13.

Riemann, K.‐U.. (1994). Theory of the plasma–sheath transition in an oblique magnetic field. Contributions to Plasma Physics. 34(2-3). 127–132. 26 indexed citations

14.

Riemann, K.‐U.. (1994). Theory of the collisional presheath in an oblique magnetic field. Physics of Plasmas. 1(3). 552–558. 154 indexed citations

15.

Riemann, K.‐U.. (1992). The validity of Bohm’s sheath criterion in rf discharges. Physics of Fluids B Plasma Physics. 4(9). 2693–2695. 43 indexed citations

16.

Riemann, K.‐U.. (1991). Bohm criterion and ion-acoustic sound barrier. Physics of Fluids B Plasma Physics. 3(12). 3331–3338. 21 indexed citations

17.

Riemann, K.‐U.. (1991). The Bohm criterion and sheath formation. Journal of Physics D Applied Physics. 24(4). 493–518. 844 indexed citations breakdown →

18.

Riemann, K.‐U.. (1985). The Boundary Layer of a Weakly Ionized Saha Plasma. 1. 522. 1 indexed citations

19.

Riemann, K.‐U.. (1979). THEORY OF THE SHEATH EDGE IN A WEAKLY IONIZED COLLISION DOMINATED PLASMA. Le Journal de Physique Colloques. 40(C7). C7–831. 3 indexed citations

20.

Ecker, G., K.‐U. Riemann, & Andreas Scholz. (1975). Analysis of the Relaxation of Wall Electrons in a Plasma. Zeitschrift für Naturforschung A. 30(8). 937–946. 1 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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