P. Hellmann

839 total citations
21 papers, 704 citations indexed

About

P. Hellmann is a scholar working on Condensed Matter Physics, Electronic, Optical and Magnetic Materials and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, P. Hellmann has authored 21 papers receiving a total of 704 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Condensed Matter Physics, 19 papers in Electronic, Optical and Magnetic Materials and 3 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in P. Hellmann's work include Rare-earth and actinide compounds (18 papers), Iron-based superconductors research (15 papers) and Magnetic Properties of Alloys (8 papers). P. Hellmann is often cited by papers focused on Rare-earth and actinide compounds (18 papers), Iron-based superconductors research (15 papers) and Magnetic Properties of Alloys (8 papers). P. Hellmann collaborates with scholars based in Germany, United States and Switzerland. P. Hellmann's co-authors include F. Steglich, C. Geibel, G. Sparn, P. Gegenwart, Michael Lang, C. Schank, A. Link, R. Caspary, R. Modler and R. Helfrich and has published in prestigious journals such as Physical Review Letters, Physical review. B, Condensed matter and Journal of Physics Condensed Matter.

In The Last Decade

P. Hellmann

21 papers receiving 690 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
P. Hellmann Germany 14 698 593 57 54 36 21 704
K. Alami-Yadri Switzerland 13 499 0.7× 404 0.7× 49 0.9× 52 1.0× 52 1.4× 17 524
Y. O ̄nuki Japan 13 837 1.2× 675 1.1× 114 2.0× 68 1.3× 33 0.9× 30 858
A. Vernière France 14 449 0.6× 420 0.7× 38 0.7× 68 1.3× 51 1.4× 46 490
Hitoshi Ohkuni Japan 13 456 0.7× 364 0.6× 34 0.6× 42 0.8× 43 1.2× 29 469
T. Westerkamp Germany 11 656 0.9× 508 0.9× 113 2.0× 34 0.6× 32 0.9× 16 681
H. Spille Germany 15 786 1.1× 645 1.1× 91 1.6× 66 1.2× 47 1.3× 30 802
R. Borth Germany 11 524 0.8× 461 0.8× 42 0.7× 94 1.7× 27 0.8× 24 541
Yoshinobu Shiokawa Japan 14 528 0.8× 442 0.7× 36 0.6× 98 1.8× 56 1.6× 39 537
J.L. Jacoud France 8 425 0.6× 347 0.6× 51 0.9× 42 0.8× 46 1.3× 11 471
A. Yatskar United States 8 465 0.7× 376 0.6× 28 0.5× 42 0.8× 81 2.3× 11 470

Countries citing papers authored by P. Hellmann

Since Specialization
Citations

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

Fields of papers citing papers by P. Hellmann

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

This figure shows the co-authorship network connecting the top 25 collaborators of P. Hellmann. A scholar is included among the top collaborators of P. 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 P. Hellmann. P. Hellmann 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.
Sparn, G., L. Donnevert, P. Hellmann, et al.. (1998). Pressure Studies near Quantum Phase Transitions in Strongly Correlated Ce Systems.. The Review of High Pressure Science and Technology. 7. 431–436. 23 indexed citations
2.
Buschinger, B., M. Weiden, O. Trovarelli, et al.. (1998). Magnetic order in Zr-doped CeNiSn. Journal of Physics Condensed Matter. 10(9). 2021–2027. 4 indexed citations
3.
Feyerherm, R., A. Amato, C. Geibel, et al.. (1997). Competition between magnetism and superconductivity inCeCu2Si2. Physical review. B, Condensed matter. 56(2). 699–710. 41 indexed citations
4.
Steglich, F., P. Hellmann, Sven Thomas, et al.. (1997). “Non-Fermi-liquid” phenomena in heavy-fermion CeCu2Si2 and CeNi2Ge2. Physica B Condensed Matter. 237-238. 192–196. 19 indexed citations
5.
Sereni, J.G., C. Geibel, M. Gómez Berisso, et al.. (1997). Scaling of the “Cp α T 1nT” dependence in Ce systems. Physica B Condensed Matter. 230-232. 580–582. 20 indexed citations
6.
Weiden, M., R. Hauptmann, W. Richter, et al.. (1997). Magnetic phase diagram ofCuGe1−xSixO3. Physical review. B, Condensed matter. 55(22). 15067–15075. 24 indexed citations
7.
Steglich, F., P. Gegenwart, R. Helfrich, et al.. (1996). Are heavy-fermion metals Fermi liquids?. Zeitschrift für Physik B Condensed Matter. 103(2). 235–242. 50 indexed citations
8.
Steglich, F., B. Buschinger, P. Gegenwart, et al.. (1996). Quantum critical phenomena in undoped heavy-fermion metals. Journal of Physics Condensed Matter. 8(48). 9909–9921. 100 indexed citations
9.
Hellmann, P., L. Donnevert, Sven Thomas, et al.. (1996). Pressure studies of quantum critical effects in CeCu2Si2 and CeNi2Ge2. Czechoslovak Journal of Physics. 46(S5). 2591–2592. 8 indexed citations
10.
Steglich, F., P. Gegenwart, C. Geibel, et al.. (1996). New observations concerning magnetism and superconductivity in heavy-fermion metals. Physica B Condensed Matter. 223-224. 1–8. 85 indexed citations
11.
Sparn, G., P. C. Canfield, P. Hellmann, et al.. (1995). Dependence of magnetism on hybridization in Ce(Cu1−xNix)2Ge2. Physica B Condensed Matter. 206-207. 212–215. 6 indexed citations
12.
Steglich, F., C. Geibel, R. Modler, et al.. (1995). Classification of strongly correlated f-electron systems. Journal of Low Temperature Physics. 99(3-4). 267–281. 22 indexed citations
13.
Feyerherm, R., A. Amato, C. Geibel, et al.. (1995). On the competition between superconductivity and magnetism in CeCu2Si2. Physica B Condensed Matter. 206-207. 596–599. 24 indexed citations
14.
Modler, R., Michael Lang, C. Geibel, et al.. (1995). The effect of composition on the occurrence of a second phase transition in the vicinity of Tc in CeCu2Si2. Physica B Condensed Matter. 206-207. 586–588. 45 indexed citations
15.
Woodfield, Brian F., Robert A. Fisher, N. E. Phillips, et al.. (1994). Equality of the entropies of the low-temperature zero-field upturn and the in-field Schottky anomalies in the specific heat of YBa2Cu3O7. Physica C Superconductivity. 234(3-4). 380–384. 6 indexed citations
16.
Steglich, F., C. Geibel, K. Gloos, et al.. (1994). Phase diagram of the magnetic heavy-fermion superconductor UPd2Al3. Physica C Superconductivity. 235-240. 95–98. 7 indexed citations
17.
Caspary, R., P. Hellmann, T. Wolf, & F. Steglich. (1993). LOW TEMPERATURE SPECIFIC HEAT OF YBa2Cu3O7. International Journal of Modern Physics B. 7(01n03). 166–169. 2 indexed citations
18.
Geibel, C., R. Caspary, K. Gloos, et al.. (1993). Ground state properties of UNi2Al3 and UPd2Al3. Physica B Condensed Matter. 186-188. 188–194. 53 indexed citations
19.
Caspary, R., P. Hellmann, M. Keller, et al.. (1993). Unusual ground-state properties ofUPd2Al3: Implications for the coexistence of heavy-fermion superconductivity and local-moment antiferromagnetism. Physical Review Letters. 71(13). 2146–2149. 123 indexed citations
20.
Amato, A., R. Feyerherm, F. N. Gygax, et al.. (1992). Magnetic and Superconducting Properties of the Heavy-Fermion Superconductor UPd 2 Al 3. Europhysics Letters (EPL). 19(2). 127–133. 34 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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