S. Hellmann

1.7k total citations
16 papers, 1.2k citations indexed

About

S. Hellmann is a scholar working on Materials Chemistry, Electrical and Electronic Engineering and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, S. Hellmann has authored 16 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Materials Chemistry, 6 papers in Electrical and Electronic Engineering and 6 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in S. Hellmann's work include 2D Materials and Applications (6 papers), Electronic and Structural Properties of Oxides (5 papers) and Advanced Chemical Physics Studies (5 papers). S. Hellmann is often cited by papers focused on 2D Materials and Applications (6 papers), Electronic and Structural Properties of Oxides (5 papers) and Advanced Chemical Physics Studies (5 papers). S. Hellmann collaborates with scholars based in Germany, United States and Sweden. S. Hellmann's co-authors include L. Kipp, Kai Roßnagel, Christian Sohrt, M. Kalläne, Timm Rohwer, Michael Bauer, A. Stange, Adra Carr, M. Marczynski-Bühlow and Stefan Mathias and has published in prestigious journals such as Nature, Physical Review Letters and Nature Communications.

In The Last Decade

S. Hellmann

16 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
S. Hellmann Germany	11	618	541	373	294	254	16	1.2k
Timm Rohwer Germany	12	643 1.0×	661 1.2×	363 1.0×	342 1.2×	250 1.0×	30	1.3k
Christian Sohrt Germany	8	647 1.0×	459 0.8×	383 1.0×	305 1.0×	250 1.0×	13	1.1k
M. Kalläne Germany	14	718 1.2×	505 0.9×	493 1.3×	351 1.2×	287 1.1×	26	1.2k
A. Stange Germany	11	565 0.9×	519 1.0×	273 0.7×	272 0.9×	179 0.7×	15	986
M. Lisowski Germany	9	444 0.7×	677 1.3×	349 0.9×	232 0.8×	396 1.6×	15	1.1k
H. Schäfer Germany	11	336 0.5×	414 0.8×	282 0.8×	376 1.3×	150 0.6×	21	887
Adra Carr United States	10	423 0.7×	576 1.1×	262 0.7×	346 1.2×	161 0.6×	33	1.0k
Laurenz Rettig Germany	22	712 1.2×	849 1.6×	637 1.7×	307 1.0×	557 2.2×	56	1.6k
M. Beyer Germany	7	331 0.5×	258 0.5×	296 0.8×	153 0.5×	183 0.7×	9	675
C. Boeglin France	15	188 0.3×	745 1.4×	279 0.7×	190 0.6×	180 0.7×	38	891

Countries citing papers authored by S. Hellmann

Since Specialization

Citations

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

Fields of papers citing papers by S. Hellmann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

This figure shows the co-authorship network connecting the top 25 collaborators of S. Hellmann. A scholar is included among the top collaborators of S. Hellmann 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. Hellmann. S. Hellmann 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:

16 of 16 papers shown

Eich, Steffen, A. Stange, Adra Carr, et al.. (2014). Time- and angle-resolved photoemission spectroscopy with optimized high-harmonic pulses using frequency-doubled Ti:Sapphire lasers. Journal of Electron Spectroscopy and Related Phenomena. 195. 231–236. 87 indexed citations

Strunskus, Thomas, S. Hellmann, Alexei Nefedov, et al.. (2013). Electronic structure, adsorption geometry, and photoswitchability of azobenzene layers adsorbed on layered crystals. Physical Chemistry Chemical Physics. 15(46). 20272–20272. 17 indexed citations

Rohde, G., Timm Rohwer, Christian Sohrt, et al.. (2013). Tracking the relaxation pathway of photo-excited electrons in 1T-TiSe2. The European Physical Journal Special Topics. 222(5). 997–1004. 6 indexed citations

Stange, A., Christian Sohrt, Timm Rohwer, et al.. (2013). A direct view onto the carrier dynamics in graphite at the H point. SHILAP Revista de lepidopterología. 41. 4022–4022. 4 indexed citations

Hellmann, S., Timm Rohwer, M. Kalläne, et al.. (2013). Time-domain evidence for an excitonic insulator. SHILAP Revista de lepidopterología. 41. 3022–3022. 2 indexed citations

Hellmann, S., Timm Rohwer, M. Kalläne, et al.. (2012). Time-domain classification of charge-density-wave insulators. Nature Communications. 3(1). 1069–1069. 236 indexed citations

Hellmann, S., M. Kalläne, Christian Sohrt, et al.. (2012). Gaps and kinks in the electronic structure of the superconductor2H-NbSe2from angle-resolved photoemission at 1 K. Physical Review B. 85(22). 114 indexed citations

Hellmann, S., T. Ott, L. Kipp, & Kai Roßnagel. (2012). Vacuum space-charge effects in nano-ARPES. Physical Review B. 85(7). 20 indexed citations

Hellmann, S., Christian Sohrt, Martin Beye, et al.. (2012). Time-resolved x-ray photoelectron spectroscopy at FLASH. New Journal of Physics. 14(1). 13062–13062. 54 indexed citations

10.

Rohwer, Timm, S. Hellmann, M. Wiesenmayer, et al.. (2011). Collapse of long-range charge order tracked by time-resolved photoemission at high momenta. Nature. 471(7339). 490–493. 358 indexed citations

11.

Hellmann, S., Martin Beye, Christian Sohrt, et al.. (2010). Ultrafast Melting of a Charge-Density Wave in the Mott Insulator1T−TaS2. Physical Review Letters. 105(18). 187401–187401. 145 indexed citations

12.

Rohwer, Timm, S. Hellmann, M. Wiesenmayer, et al.. (2010). CDW-superlattice suppression probed in time-resolved XUV-photoemission at the border of the Brillouin zone. MG2–MG2. 1 indexed citations

13.

Hellmann, S., Kai Roßnagel, M. Marczynski-Bühlow, & L. Kipp. (2009). Publisher's Note: Vacuum space-charge effects in solid-state photoemission [Phys. Rev. B79, 035402 (2009)]. Physical Review B. 79(8). 3 indexed citations

14.

Hellmann, S., Kai Roßnagel, M. Marczynski-Bühlow, & L. Kipp. (2009). Vacuum space-charge effects in solid-state photoemission. Physical Review B. 79(3). 98 indexed citations

15.

Reinert, J. & S. Hellmann. (1971). Mechanism of the formation of polynuclear protoplasts from cells of higher plants. Die Naturwissenschaften. 58(8). 419–419. 11 indexed citations

16.

Hellmann, S. & J. Reinert. (1971). Protoplasten aus Zellkulturen vonDaucus carota. PROTOPLASMA. 72(4). 479–484. 10 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