J. Hammann

4.2k total citations
132 papers, 3.0k citations indexed

About

J. Hammann is a scholar working on Condensed Matter Physics, Materials Chemistry and Electronic, Optical and Magnetic Materials. According to data from OpenAlex, J. Hammann has authored 132 papers receiving a total of 3.0k indexed citations (citations by other indexed papers that have themselves been cited), including 106 papers in Condensed Matter Physics, 41 papers in Materials Chemistry and 39 papers in Electronic, Optical and Magnetic Materials. Recurrent topics in J. Hammann's work include Theoretical and Computational Physics (67 papers), Advanced Condensed Matter Physics (29 papers) and Physics of Superconductivity and Magnetism (29 papers). J. Hammann is often cited by papers focused on Theoretical and Computational Physics (67 papers), Advanced Condensed Matter Physics (29 papers) and Physics of Superconductivity and Magnetism (29 papers). J. Hammann collaborates with scholars based in France, United States and Japan. J. Hammann's co-authors include E. Vincent, M. Ocio, M. Alba, Jean‐Philippe Bouchaud, F. Lefloch, П. Нордблад, K. Jonason, P. Réfrégier, J. P. Bouchaud and M. Lederman and has published in prestigious journals such as Physical Review Letters, Physical review. B, Condensed matter and Journal of Applied Physics.

In The Last Decade

J. Hammann

132 papers receiving 2.8k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
J. Hammann 2.4k 1.1k 807 709 641 132 3.0k
E. Vincent 1.6k 0.7× 1.4k 1.3× 488 0.6× 645 0.9× 520 0.8× 91 3.0k
E. Pytte 2.0k 0.8× 1.0k 0.9× 866 1.1× 1.0k 1.4× 196 0.3× 52 2.9k
K. Fischer 1.7k 0.7× 671 0.6× 556 0.7× 736 1.0× 339 0.5× 73 2.1k
O. Beckman 1.2k 0.5× 1.0k 0.9× 752 0.9× 957 1.3× 266 0.4× 67 2.4k
I. A. Campbell 2.3k 1.0× 813 0.7× 1.7k 2.1× 1.7k 2.4× 262 0.4× 116 3.5k
Hiroko Aruga Katori 3.5k 1.5× 1.2k 1.1× 2.5k 3.0× 822 1.2× 334 0.5× 201 4.2k
R. Orbach 1.2k 0.5× 847 0.8× 339 0.4× 719 1.0× 181 0.3× 28 2.0k
P. C. W. Holdsworth 2.7k 1.2× 686 0.6× 1.1k 1.4× 902 1.3× 303 0.5× 95 3.4k
Wayne M. Saslow 1.5k 0.6× 653 0.6× 732 0.9× 1.9k 2.7× 96 0.1× 144 2.9k
J. Chaussy 1.5k 0.7× 660 0.6× 773 1.0× 1.1k 1.5× 65 0.1× 118 2.6k

Countries citing papers authored by J. Hammann

Since Specialization
Citations

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

Fields of papers citing papers by J. Hammann

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. Hammann

This figure shows the co-authorship network connecting the top 25 collaborators of J. Hammann. A scholar is included among the top collaborators of J. Hammann 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 J. Hammann. J. Hammann 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.
Bert, F., Vincent Dupuis, E. Vincent, J. Hammann, & Jean‐Philippe Bouchaud. (2004). Spin Anisotropy and Slow Dynamics in Spin Glasses. Physical Review Letters. 92(16). 167203–167203. 63 indexed citations
2.
3.
Hammann, J., E. Vincent, & V. Dupuis. (2000). Comparative Review of Aging Properties in Spin Glasses and Other Disordered Materials (Frontiers in Magnetism). Journal of the Physical Society of Japan. 69. 206–211. 8 indexed citations
4.
Wills, A. S., Vincent Dupuis, E. Vincent, J. Hammann, & R. Calemczuk. (2000). Aging in a topological spin glass. Physical review. B, Condensed matter. 62(14). R9264–R9267. 62 indexed citations
5.
Bras, G. Le, J. Hammann, A. Bertinotti, et al.. (1996). Magnetic anisotropy in Hg1201 and Hg1223 superconducting single crystals. Czechoslovak Journal of Physics. 46(S3). 1769–1770. 7 indexed citations
6.
Ocio, M., et al.. (1994). Gauge glass properties in a granular La1.8Sr.2CuO4 superconductor. Physica B Condensed Matter. 194-196. 1865–1866. 5 indexed citations
7.
Vincent, E., J. Hammann, P. Prené, & E. Tronc. (1994). Low temperature dynamics of small γ-Fe203 particles. Journal de Physique I. 4(2). 273–282. 30 indexed citations
8.
Lefloch, F., J. Hammann, M. Ocio, & E. Vincent. (1994). Spin glasses in a magnetic field: Phase diagram and dynamics. Physica B Condensed Matter. 203(1-2). 63–74. 39 indexed citations
9.
Thompson, S.M., J. F. Gregg, K. Ounadjela, et al.. (1993). Giant magnetoresistance of cobalt-silver metastable alloys prepared by sputtering and mechanical alloying. Philosophical Magazine B. 68(6). 923–937. 24 indexed citations
10.
Lederman, M., Jonathan V. Selinger, Robijn Bruinsma, J. Hammann, & R. Orbach. (1992). Low-temperature dynamics of a diluted Ising antiferromagnet. Physical Review Letters. 68(13). 2086–2089. 15 indexed citations
11.
Bonville, P., J. Hammann, J.A. Hodges, et al.. (1991). Hybridization and crystal field in YbPd2Si2. Physica B Condensed Matter. 171(1-4). 171–174. 7 indexed citations
12.
Lederman, M., R. Orbach, J. Hammann, M. Ocio, & E. Vincent. (1991). Dynamics in spin glasses. Physical review. B, Condensed matter. 44(14). 7403–7412. 108 indexed citations
13.
Kenning, G. G., et al.. (1991). Magnetic-field dependence of T g in bulk Cu:Mn and Cu:Mn/Cu multilayer systems. Journal of Applied Physics. 69(8). 5240–5242. 7 indexed citations
14.
Srivastava, J. K., S. Ramakrishnan, A. K. Nigam, et al.. (1988). Cluster spin glass behaviour of mixed spinel ferrite Ga0.8Fe0.2NiCrO4. Hyperfine Interactions. 42(1-4). 1079–1082. 16 indexed citations
15.
Alba, M., E. Vincent, J. Hammann, & M. Ocio. (1987). Field effect on aging and relaxation of the thermoremanent magnetization in spin glasses (low-field regime). Journal of Applied Physics. 61(8). 4092–4094. 19 indexed citations
16.
Hammann, J. & M. Ocio. (1980). Electronic and nuclear magnetic ordering in HoAlO3. Journal of Magnetism and Magnetic Materials. 15-18. 39–41. 1 indexed citations
17.
Hammann, J. & M. Ocio. (1977). Magnetic ordering induced by hyperfine interactions in the terbium and holmium gallium garnets. Physica B+C. 86-88. 1153–1155. 11 indexed citations
18.
Bidaux, R., J.E. Bourée, & J. Hammann. (1974). Dipolar interactions in rare earth orthoferrites part I: YFeO3 and HoFeO3. Solid State Communications. 15(2). viii–viii. 1 indexed citations
19.
Bidaux, R., J.E. Bourée, & J. Hammann. (1972). Shape effects and magnetic properties of TbFeO3. Physics Letters A. 40(2). 167–168. 5 indexed citations
20.
Hammann, J.. (1969). Etude par diffraction de neutrons à 0,31°K de la structure antiferromagnétique des grenats d'aluminium–terbium et d'aluminium–holmium. Acta Crystallographica Section B. 25(9). 1853–1856. 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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