Bjørk Hammer

56.7k total citations · 13 hit papers
242 papers, 38.5k citations indexed

About

Bjørk Hammer is a scholar working on Materials Chemistry, Atomic and Molecular Physics, and Optics and Electrical and Electronic Engineering. According to data from OpenAlex, Bjørk Hammer has authored 242 papers receiving a total of 38.5k indexed citations (citations by other indexed papers that have themselves been cited), including 168 papers in Materials Chemistry, 132 papers in Atomic and Molecular Physics, and Optics and 52 papers in Electrical and Electronic Engineering. Recurrent topics in Bjørk Hammer's work include Advanced Chemical Physics Studies (110 papers), Catalytic Processes in Materials Science (84 papers) and Surface Chemistry and Catalysis (44 papers). Bjørk Hammer is often cited by papers focused on Advanced Chemical Physics Studies (110 papers), Catalytic Processes in Materials Science (84 papers) and Surface Chemistry and Catalysis (44 papers). Bjørk Hammer collaborates with scholars based in Denmark, Germany and United States. Bjørk Hammer's co-authors include Jens K. Nørskov, L. B. Hansen, L. M. Molina, Flemming Besenbacher, Manos Mavrikakis, Yoshitada Morikawa, Erik Lægsgaard, Željko Šljivančanin, Stefan Wendt and I. Stensgaard and has published in prestigious journals such as Nature, Science and Journal of the American Chemical Society.

In The Last Decade

Bjørk Hammer

240 papers receiving 38.0k citations

Hit Papers

Improved adsorption energ... 1995 2026 2005 2015 1999 1995 1995 1998 1996 2.0k 4.0k 6.0k
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Improved adsorption energetics within density-functional theory using revised Perdew-Burke-Ernzerhof functionals
    1999 6.9k citations Bjørk Hammer et al. profile →
  2. Why gold is the noblest of all the metals
    1995 3.2k citations Bjørk Hammer et al. profile →
  3. Electronic factors determining the reactivity of metal surfaces
    1995 2.3k citations Bjørk Hammer et al. Surface Science profile →
  4. Effect of Strain on the Reactivity of Metal Surfaces
    1998 2.1k citations Bjørk Hammer et al. Physical Review Letters profile →
  5. CO Chemisorption at Metal Surfaces and Overlayers
    1996 1.3k citations Bjørk Hammer, Yoshitada Morikawa et al. Physical Review Letters profile →
  6. Surface electronic structure and reactivity of transition and noble metals1Communication presented at the First Francqui Colloquium, Brussels, 19–20 February 1996.1
    1997 1.2k citations Bjørk Hammer et al. profile →
  7. Universality in Heterogeneous Catalysis
    2002 1.1k citations Bjørk Hammer et al. Journal of Catalysis profile →
  8. Design of a Surface Alloy Catalyst for Steam Reforming
    1998 866 citations Flemming Besenbacher, Bjørk Hammer et al. profile →
  9. The Role of Interstitial Sites in the Ti 3d Defect State in the Band Gap of Titania
    2008 799 citations Stefan Wendt, Estephanía Lira et al. profile →
  10. The CO/Pt(111) Puzzle
    2000 620 citations Peter J. Feibelman, Bjørk Hammer et al. profile →
  11. The Brønsted–Evans–Polanyi Relation and the Volcano Plot for Ammonia Synthesis over Transition Metal Catalysts
    2001 596 citations Bjørk Hammer et al. Journal of Catalysis profile →
  12. Chiral recognition in dimerization of adsorbed cysteine observed by scanning tunnelling microscopy
    2002 526 citations Bjørk Hammer, Flemming Besenbacher et al. profile →
  13. Oxygen vacancies on TiO2(110) and their interaction with H2O and O2: A combined high-resolution STM and DFT study
    2005 524 citations Stefan Wendt, Renald Schaub et al. Surface Science profile →

Author Peers

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

Author Last Decade Papers Cites
Bjørk Hammer 26.6k 13.6k 10.6k 10.5k 8.7k 242 38.5k
R. Jürgen Behm 21.6k 0.8× 14.8k 1.1× 18.4k 1.7× 10.4k 1.0× 9.3k 1.1× 675 43.0k
Gianfranco Pacchioni 27.8k 1.0× 11.6k 0.9× 8.8k 0.8× 8.7k 0.8× 5.7k 0.7× 641 37.2k
Manos Mavrikakis 23.1k 0.9× 19.9k 1.5× 11.4k 1.1× 4.7k 0.5× 10.7k 1.2× 320 36.8k
Charles T. Campbell 18.4k 0.7× 6.6k 0.5× 5.7k 0.5× 7.0k 0.7× 8.6k 1.0× 353 27.9k
John T. Yates 22.9k 0.9× 11.8k 0.9× 8.9k 0.8× 10.4k 1.0× 5.3k 0.6× 489 34.9k
Hannes Jónsson 40.1k 1.5× 21.6k 1.6× 21.7k 2.0× 11.6k 1.1× 12.8k 1.5× 248 65.6k
Francesc Illas 22.5k 0.8× 7.7k 0.6× 5.7k 0.5× 6.8k 0.7× 7.1k 0.8× 699 31.7k
Philippe Sautet 14.2k 0.5× 7.0k 0.5× 6.0k 0.6× 5.3k 0.5× 6.2k 0.7× 451 24.0k
C. Richard A. Catlow 32.1k 1.2× 6.0k 0.4× 8.5k 0.8× 5.5k 0.5× 6.2k 0.7× 1.0k 45.2k
Matthias Scheffler 33.5k 1.3× 5.5k 0.4× 15.0k 1.4× 23.0k 2.2× 5.3k 0.6× 491 53.9k

Countries citing papers authored by Bjørk Hammer

Since Specialization
Citations

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

Fields of papers citing papers by Bjørk Hammer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Bjørk Hammer

This figure shows the co-authorship network connecting the top 25 collaborators of Bjørk Hammer. A scholar is included among the top collaborators of Bjørk Hammer 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 Bjørk Hammer. Bjørk Hammer 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.
Tang, Zeyuan, et al.. (2025). Anharmonic infrared spectra of cationic pyrene and superhydrogenated derivatives. The Journal of Chemical Physics. 163(4). 1 indexed citations
2.
Tang, Zeyuan, Stefan T. Bromley, & Bjørk Hammer. (2023). A machine learning potential for simulating infrared spectra of nanosilicate clusters. The Journal of Chemical Physics. 158(22). 12 indexed citations
3.
Iversen, Bo B., et al.. (2023). A Machine‐Learning‐Based Approach for Solving Atomic Structures of Nanomaterials Combining Pair Distribution Functions with Density Functional Theory. Advanced Materials. 35(13). e2208220–e2208220. 18 indexed citations
4.
Petrik, Nikolay G., Wilke Dononelli, Greg A. Kimmel, et al.. (2023). Origin of hydroxyl pair formation on reduced anatase TiO2(101). Physical Chemistry Chemical Physics. 25(19). 13645–13653. 3 indexed citations
5.
Merte, Lindsay R., Igor Sokolović, Martin Setvín, et al.. (2022). Structure of an Ultrathin Oxide on Pt3Sn(111) Solved by Machine Learning Enhanced Global Optimization**. Angewandte Chemie. 134(25). e202204244–e202204244. 5 indexed citations
6.
Merte, Lindsay R., Igor Sokolović, Martin Setvín, et al.. (2022). Structure of an Ultrathin Oxide on Pt 3 Sn(111) Solved by Machine Learning Enhanced Global Optimization**. Angewandte Chemie International Edition. 61(25). e202204244–e202204244. 29 indexed citations
7.
Tang, Zeyuan, et al.. (2022). Top-down formation of ethylene from fragmentation of superhydrogenated polycyclic aromatic hydrocarbons. Astronomy and Astrophysics. 663. A150–A150. 5 indexed citations
8.
Hammer, Bjørk, et al.. (2022). Atomistic Global Optimization X: A Python package for optimization of atomistic structures. arXiv (Cornell University). 26 indexed citations
9.
Bruix, Albert, Jeppe V. Lauritsen, & Bjørk Hammer. (2021). Size-dependent phase stability in transition metal dichalcogenide nanoparticles controlled by metal substrates. Nanoscale. 13(22). 10167–10180. 6 indexed citations
10.
Yan, Yigang, Wilke Dononelli, Jakob B. Grinderslev, et al.. (2020). The mechanism of Mg2+conduction in ammine magnesium borohydride promoted by a neutral molecule. Physical Chemistry Chemical Physics. 22(17). 9204–9209. 92 indexed citations
11.
Kolsbjerg, Esben L., et al.. (2020). NH3 on anatase TiO2(101): Diffusion mechanisms and the effect of intermolecular repulsion. Physical Review Materials. 4(12). 7 indexed citations
12.
Kolsbjerg, Esben L., et al.. (2018). NH3 adsorption on anatase-TiO2(101). The Journal of Chemical Physics. 148(12). 124704–124704. 15 indexed citations
13.
Grønborg, Signe S., Norberto Salazar, Albert Bruix, et al.. (2018). Visualizing hydrogen-induced reshaping and edge activation in MoS2 and Co-promoted MoS2 catalyst clusters. Nature Communications. 9(1). 2211–2211. 88 indexed citations
14.
Pussi, K., Johan Gustafson, Mikhail Shipilin, et al.. (2017). Structure of the SnO2(110)-(4 x 1) Surface. UCL Discovery (University College London). 1 indexed citations
15.
Lira, Estephanía, Jonas Ø. Hansen, Peipei Huo, et al.. (2010). Dissociative and molecular oxygen chemisorption channels on reduced rutile TiO2(110): An STM and TPD study. Surface Science. 604(21-22). 1945–1960. 134 indexed citations
16.
Lee, Sungsik, L. M. Molina, M. J. López, et al.. (2009). Selective Propene Epoxidation on Immobilized Au6–10 Clusters: The Effect of Hydrogen and Water on Activity and Selectivity. Angewandte Chemie International Edition. 48(8). 1467–1471. 231 indexed citations
17.
Wendt, Stefan, J. Matthiesen, Renald Schaub, et al.. (2006). Formation and Splitting of Paired Hydroxyl Groups on ReducedTiO2(110). Physical Review Letters. 96(6). 66107–66107. 374 indexed citations
18.
Rasmussen, M. D., L. M. Molina, & Bjørk Hammer. (2003). Adsorption, diffusion, and dissociation of molecular oxygen at defected TiO2(110): A density functional theory study. The Journal of Chemical Physics. 120(2). 988–997. 243 indexed citations
19.
Feibelman, Peter J., Bjørk Hammer, Frank R. Wagner, et al.. (2000). The CO/Pt(111) Puzzle. The Journal of Physical Chemistry. 2 indexed citations
20.
Morikawa, Yoshitada, et al.. (1997). Density-Functional Calculations of N-2 Adsorption and Dissociation on a Ru(0001) Surface (Vol 169, Pg 85, 1997). Journal of Catalysis. 170(2). 412–412. 1 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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