S. Friedreich

539 total citations
12 papers, 226 citations indexed

About

S. Friedreich is a scholar working on Atomic and Molecular Physics, and Optics, Spectroscopy and Mechanics of Materials. According to data from OpenAlex, S. Friedreich has authored 12 papers receiving a total of 226 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Atomic and Molecular Physics, and Optics, 3 papers in Spectroscopy and 2 papers in Mechanics of Materials. Recurrent topics in S. Friedreich's work include Quantum, superfluid, helium dynamics (6 papers), Atomic and Molecular Physics (6 papers) and Atomic and Subatomic Physics Research (5 papers). S. Friedreich is often cited by papers focused on Quantum, superfluid, helium dynamics (6 papers), Atomic and Molecular Physics (6 papers) and Atomic and Subatomic Physics Research (5 papers). S. Friedreich collaborates with scholars based in Austria, Germany and Hungary. S. Friedreich's co-authors include R. Hayano, D. Barna, A. Dax, B. Juhász, E. Widmann, M. Hori, A. Sótér, T. Pask, Dezső Horváth and N. Zurlo and has published in prestigious journals such as Nature, Physics Letters B and Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment.

In The Last Decade

S. Friedreich

11 papers receiving 221 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
S. Friedreich Austria 6 179 63 36 25 22 12 226
A. Sótér Germany 10 298 1.7× 114 1.8× 26 0.7× 33 1.3× 33 1.5× 31 389
T. Pask Austria 2 125 0.7× 46 0.7× 6 0.2× 19 0.8× 19 0.9× 6 168
J. Sakaguchi Japan 10 178 1.0× 37 0.6× 12 0.3× 36 1.4× 4 0.2× 16 297
J. Ketter Germany 11 215 1.2× 226 3.6× 13 0.4× 83 3.3× 11 0.5× 15 333
C.C. Damm United States 11 87 0.5× 114 1.8× 23 0.6× 36 1.4× 8 0.4× 24 225
Pavel Fadeev Germany 10 280 1.6× 141 2.2× 5 0.1× 16 0.6× 10 0.5× 12 323
M. Mandelkern United States 5 89 0.5× 82 1.3× 21 0.6× 6 0.2× 12 0.5× 6 161
K. L. Héritier United Kingdom 11 55 0.3× 27 0.4× 14 0.4× 4 0.2× 5 0.2× 14 251
Ashfaq Ahmad Italy 4 90 0.5× 137 2.2× 5 0.1× 27 1.1× 7 0.3× 5 173
Dennis Renisch Germany 9 131 0.7× 117 1.9× 10 0.3× 36 1.4× 1 0.0× 32 231

Countries citing papers authored by S. Friedreich

Since Specialization
Citations

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

Fields of papers citing papers by S. Friedreich

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of S. Friedreich

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

All Works

12 of 12 papers shown
1.
Friedreich, S., et al.. (2023). The European NORM Association (ENA)—promoting radiation protection in the field of norm in Europe. Radiation Protection Dosimetry. 199(8-9). 937–940.
2.
Cooke, D., P. Crivelli, Jānis Alnis, et al.. (2015). Observation of positronium annihilation in the 2S state: towards a new measurement of the 1S-2S transition frequency. Hyperfine Interactions. 233(1-3). 67–73. 22 indexed citations
3.
Crivelli, P., D. Cooke, & S. Friedreich. (2014). Experimental considerations for testing antimatter antigravity using positronium 1S-2S spectroscopy. International Journal of Modern Physics Conference Series. 30. 1460257–1460257. 20 indexed citations
4.
Friedreich, S., D. Barna, F. Caspers, et al.. (2013). Microwave spectroscopic study of the hyperfine structure of antiprotonic3He. Journal of Physics B Atomic Molecular and Optical Physics. 46(12). 125003–125003. 8 indexed citations
5.
Barna, D., M. Hori, A. Sótér, et al.. (2013). Two-photon laser spectroscopy of antiprotonic helium and the antiproton-electron mass ratio. AIP conference proceedings. 142–144. 1 indexed citations
6.
Friedreich, S.. (2012). Hyperfine structure measurements of antiprotonic ³He using microwave spectroscopy. Behavioral Sciences & the Law. 33(4). 561–79. 1 indexed citations
7.
Friedreich, S., D. Barna, F. Caspers, et al.. (2012). Microwave spectroscopy measurements of the hyperfine structure in antiprotonic 3He. Hyperfine Interactions. 212(1-3). 167–177. 1 indexed citations
8.
Massiczek, O., S. Friedreich, B. Juhász, E. Widmann, & J. Zmeskal. (2011). Liquid helium-free cryostat and hermetically sealed cryogenic microwave cavity for hyperfine spectroscopy of antiprotonic helium. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 659(1). 55–60. 3 indexed citations
9.
Hori, M., A. Sótér, D. Barna, et al.. (2011). Two-photon laser spectroscopy of antiprotonic helium and the antiproton-to-electron mass ratio. Nature. 475(7357). 484–488. 131 indexed citations
10.
Friedreich, S., D. Barna, F. Caspers, et al.. (2011). First observation of two hyperfine transitions in antiprotonic 3He. Physics Letters B. 700(1). 1–6. 5 indexed citations
11.
Friedreich, S., D. Barna, A. Dax, et al.. (2011). Spectroscopy of the hyperfine structure of antiprotonic 4He and 3He. Hyperfine Interactions. 199(1-3). 337–346. 1 indexed citations
12.
Pask, T., D. Barna, A. Dax, et al.. (2009). Antiproton magnetic moment determined from the HFS of p¯He+. Physics Letters B. 678(1). 55–59. 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

Rankless by CCL
2026