Robert M. Johnsen

862 total citations
23 papers, 732 citations indexed

About

Robert M. Johnsen is a scholar working on Physical and Theoretical Chemistry, Materials Chemistry and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Robert M. Johnsen has authored 23 papers receiving a total of 732 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Physical and Theoretical Chemistry, 8 papers in Materials Chemistry and 6 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Robert M. Johnsen's work include Material Dynamics and Properties (8 papers), Spectroscopy and Quantum Chemical Studies (6 papers) and NMR spectroscopy and applications (6 papers). Robert M. Johnsen is often cited by papers focused on Material Dynamics and Properties (8 papers), Spectroscopy and Quantum Chemical Studies (6 papers) and NMR spectroscopy and applications (6 papers). Robert M. Johnsen collaborates with scholars based in Sweden, Czechia and Denmark. Robert M. Johnsen's co-authors include Wyn Brown, Karin Schillén, Peter Stilbs, Petr Štěpánek, Taco Nicolaï, Björn Lindman, Wyn Brown, J. Jakeš, Jean-Christophe Gimel and Christine M. Papadakis and has published in prestigious journals such as The Journal of Chemical Physics, Macromolecules and The Journal of Physical Chemistry.

In The Last Decade

Robert M. Johnsen

23 papers receiving 700 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Robert M. Johnsen Sweden 13 448 233 181 111 104 23 732
John S. Huang United States 9 469 1.0× 308 1.3× 161 0.9× 164 1.5× 71 0.7× 11 752
Dalila Bendedouch Algeria 16 386 0.9× 185 0.8× 175 1.0× 192 1.7× 33 0.3× 26 1.0k
Kenzabu Tasaki United States 11 317 0.7× 192 0.8× 160 0.9× 217 2.0× 93 0.9× 19 882
Roger Rymdén Sweden 12 380 0.8× 119 0.5× 219 1.2× 141 1.3× 63 0.6× 18 591
P. R. Sundararajan India 10 297 0.7× 322 1.4× 139 0.8× 70 0.6× 99 1.0× 20 884
L. Belkoura Germany 17 284 0.6× 272 1.2× 80 0.4× 117 1.1× 121 1.2× 46 757
Torbjörn Wärnheim Sweden 13 376 0.8× 157 0.7× 89 0.5× 72 0.6× 52 0.5× 30 582
A. Khan Sweden 13 462 1.0× 204 0.9× 112 0.6× 112 1.0× 42 0.4× 17 771
Günther Meyerhoff Germany 11 378 0.8× 331 1.4× 159 0.9× 89 0.8× 181 1.7× 20 1.1k
M. P. McDonald United Kingdom 11 800 1.8× 362 1.6× 133 0.7× 244 2.2× 126 1.2× 20 1.2k

Countries citing papers authored by Robert M. Johnsen

Since Specialization
Citations

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

Fields of papers citing papers by Robert M. Johnsen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Robert M. Johnsen

This figure shows the co-authorship network connecting the top 25 collaborators of Robert M. Johnsen. A scholar is included among the top collaborators of Robert M. Johnsen 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 Robert M. Johnsen. Robert M. Johnsen 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.
Papadakis, Christine M., Wyn Brown, Robert M. Johnsen, Dorthe Posselt, & Kristoffer Almdal. (1996). The dynamics of symmetric polystyrene–polybutadiene diblock copolymer melts studied above and below the order–disorder transition using dynamic light scattering. The Journal of Chemical Physics. 104(4). 1611–1625. 17 indexed citations
2.
Nicolaï, Taco, Jean-Christophe Gimel, & Robert M. Johnsen. (1996). Analysis of Relaxation Functions Characterized by a Broad Monomodal Relaxation TimeDistribution. Journal de Physique II. 6(5). 697–711. 11 indexed citations
3.
Rizos, A. K., Robert M. Johnsen, W. Byers Brown, & K. L. Ngai. (1995). Component Dynamics in Polystyrene/Bis(2-ethylhexyl) Phthalate Solutions by Polarized and Depolarized Light Scattering and Dielectric Spectroscopy. Macromolecules. 28(16). 5450–5457. 12 indexed citations
4.
Štěpánek, Petr, et al.. (1995). Phase Separation in Concentrated Solutions of Two Homopolymers and a Diblock Copolymer. Macromolecules. 28(8). 2852–2857. 2 indexed citations
5.
Štěpánek, Petr & Robert M. Johnsen. (1995). Dynamic Light Scattering from Polymer Solutions: The Subtraction Technique. Collection of Czechoslovak Chemical Communications. 60(11). 1941–1949. 18 indexed citations
6.
Schillén, Karin, Wyn Brown, & Robert M. Johnsen. (1994). Micellar Sphere-to-Rod Transition in an Aqueous Triblock Copolymer System. A Dynamic Light Scattering Study of Translational and Rotational Diffusion. Macromolecules. 27(17). 4825–4832. 262 indexed citations
7.
Brown, Wyn, et al.. (1992). Brillouin light scattering from poly(methyl methacrylate)/toluene concentrated solutions. Macromolecules. 25(2). 802–805. 4 indexed citations
8.
Brown, Wyn, et al.. (1991). Dynamics in concentrated polymer solutions by polarized Rayleigh–Brillouin scattering and dynamic light scattering. The Journal of Chemical Physics. 95(11). 8568–8577. 15 indexed citations
9.
Johnsen, Robert M. & Wyn Brown. (1991). An overview of current methods of analysing QLS data. Biochemical Society Transactions. 19(2). 482–482. 3 indexed citations
10.
Brown, Wyn, et al.. (1990). Dynamic behavior in ternary polymer solutions. Concentration dependence of diffusion coefficients. Macromolecules. 23(3). 901–903. 7 indexed citations
11.
Nicolaï, Taco, Wyn Brown, Robert M. Johnsen, & Petr Štěpánek. (1990). Dynamic behavior of .THETA. solutions of polystyrene investigated by dynamic light scattering. Macromolecules. 23(4). 1165–1174. 80 indexed citations
12.
Nicolaï, Taco, Wyn Brown, & Robert M. Johnsen. (1989). The internal modes of polystyrene single coils studied using dynamic light scattering. Macromolecules. 22(6). 2795–2801. 17 indexed citations
13.
Brown, Wyn, Robert M. Johnsen, Petr Štěpánek, & J. Jakeš. (1988). Distribution of relaxation times from quasi-elastic light-scattering experiments: high molecular weight polystyrene in cyclopentane at .theta. conditions. Macromolecules. 21(9). 2859–2865. 27 indexed citations
14.
Štěpánek, Petr, et al.. (1987). Dynamic light scattering measurements on the polystyrene/ethyl acetate system at semi-dilute concentrations as a function of temperature. Polymer Bulletin. 18(2). 175–182. 5 indexed citations
15.
Brown, Wyn & Robert M. Johnsen. (1986). Dynamics of semidilute solutions using photon correlation spectroscopy - the influence of solvent quality. Macromolecules. 19(7). 2002–2006. 10 indexed citations
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Stilbs, Peter, et al.. (1983). Friction coefficients in self‐diffusion, velocity sedimentation, and mutual diffusion for poly(ethylene oxide) in aqueous solution. Journal of Polymer Science Polymer Physics Edition. 21(7). 1029–1039. 24 indexed citations
20.
Brown, Wyn & Robert M. Johnsen. (1981). Diffusion in polyacrylamide gels. Polymer. 22(2). 185–189. 40 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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