World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
68
Citations
19101
World Ranking
6441
National Ranking
372

Roy L. Johnston publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Roy L. Johnston sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 297 publications — 62nd percentile

62% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Roy L. Johnston D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Roy L. Johnston sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 68 D-Index — 64th percentile

64% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Roy L. Johnston was affiliated with the University of Birmingham in the United Kingdom. Their research contributions spanned multiple fields, primarily focusing on materials science and physics and astronomy. Throughout their career, they authored papers that explored specialized areas within these broader fields, including atomic and molecular physics, optics, materials chemistry, ecology, evolution and systematics, atmospheric science, and electronic, optical and magnetic materials.

The scientist's work frequently addressed core topics such as photonic crystals and applications, Pickering emulsions and particle stabilization, biocrusts and microbial ecology, nanoparticles nucleation and surface interactions, machine learning in materials science, advanced chemical physics studies, and the electronic and magnetic properties of Heusler alloys.

Roy L. Johnston contributed to several peer-reviewed publications, with notable papers including:

  • Leveraging Hierarchical Self-Assembly Pathways for Realizing Colloidal Photonic Crystals, 2020, ACS Nano
  • Global minima and structural properties of Au Fe nanoalloys from a Mexican Enhanced Genetic Algorithm-based Density Functional Theory, 2021, Chemical Physics Letters
  • Structural and magnetic properties of Co-Pt clusters: A spin-polarized density functional study, 2020, Journal of Magnetism and Magnetic Materials
  • Effects of Hydration on the Conformational Behavior of Flexible Molecules with Two Charge Centers, 2020, The Journal of Physical Chemistry A

The scientist collaborated frequently with colleagues such as Abhishek Baindoor Rao, James G. Shaw, Andreas Neophytou, Daniel Morphew, and Francesco Sciortino. Their research was disseminated across several scientific journals, including ACS Nano, Chemical Physics Letters, Journal of Magnetism and Magnetic Materials, and The Journal of Physical Chemistry A.

Roy L. Johnston's interdisciplinary approach integrated experimental and computational techniques to investigate complex material properties and behaviors. Their contributions touched on hierarchical self-assembly, magnetic materials, nanoalloys, and molecular conformational dynamics influenced by environmental factors.

Best Publications

  • Nanoalloys: From Theory to Applications of Alloy Clusters and Nanoparticles

    Riccardo Ferrando;Julius Jellinek;Roy L. Johnston

  • Evolving better nanoparticles: Genetic algorithms for optimising cluster geometries

    Roy L. Johnston

  • Three-dimensional atomic-scale structure of size-selected gold nanoclusters

    Z. Y. Li;N. P. Young;M. Di Vece;S. Palomba

  • Atomic and molecular clusters

    Roy L. Johnston

  • Theoretical study of Cu–Au nanoalloy clusters using a genetic algorithm

    Sarah Darby;Thomas V. Mortimer-Jones;Roy L. Johnston;Christopher Roberts

  • Global optimization of bimetallic cluster structures. I. Size-mismatched Ag–Cu, Ag–Ni, and Au–Cu systems

    Arnaldo Rapallo;Giulia Rossi;Riccardo Ferrando;Alessandro Fortunelli

  • The application of a genetic algorithm for solving crystal structures from powder diffraction data

    Benson M. Kariuki;Heliodoro Serrano-González;Roy L. Johnston;Kenneth D.M. Harris

  • The Genetic Algorithm: Foundations and Apllications in Structure Solution from Powder Diffraction Data

    Kenneth D. M. Harris;Roy L. Johnston;Benson M. Kariuki

  • Global optimization of clusters using electronic structure methods

    Sven Heiles;Roy L. Johnston

  • Searching for the optimum structures of alloy nanoclusters

    Riccardo Ferrando;Alessandro Fortunelli;Roy L. Johnston

  • Global optimization of bimetallic cluster structures. II. Size-matched Ag-Pd, Ag-Au, and Pd-Pt systems.

    Giulia Rossi;Riccardo Ferrando;Arnaldo Rapallo;Alessandro Fortunelli

  • Theoretical Studies of Palladium−Gold Nanoclusters: Pd−Au Clusters with up to 50 Atoms

    Faye Pittaway;Lauro Oliver Paz-Borbón;Roy L. Johnston;Haydar Arslan

  • Investigation of the structures of MgO clusters using a genetic algorithm

    Christopher Roberts;Roy L. Johnston

  • Structure-Bonding Relationships in the Laves Phases†

    Roy L. Johnston;Roald Hoffmann

  • Structural motifs, mixing, and segregation effects in 38-atom binary clusters

    Lauro Oliver Paz-Borbón;Roy L. Johnston;Giovanni Barcaro;Alessandro Fortunelli

  • Superdense carbon, C8: supercubane or analog of .gamma.-silicon?

    Roy L. Johnston;Roald Hoffmann

  • Theoretical models of cluster bonding

    D. Michael;P. Mingos;Roy L. Johnston

  • Size-Dependent Subnanometer Pd Cluster (Pd4, Pd6, and Pd17) Water Oxidation Electrocatalysis

    Gihan Kwon;Glen A Ferguson;Christopher J Heard;Eric C Tyo

  • A genetic algorithm for the structural optimization of Morse clusters

    Chris Roberts;Roy L. Johnston;Nicholas T. Wilson

  • Geometries and segregation properties of platinum–palladium nanoalloy clusters

    Claire Massen;Thomas V. Mortimer-Jones;Roy L. Johnston

Frequent Co-Authors

Kenneth D. M. Harris
Kenneth D. M. Harris Cardiff University
Benson M. Kariuki
Benson M. Kariuki Cardiff University
Alessandro Fortunelli
Alessandro Fortunelli National Research Council (CNR)
Riccardo Ferrando
Riccardo Ferrando University of Genoa
John N. Murrell
John N. Murrell University of Sussex
Giovanni Barcaro
Giovanni Barcaro National Research Council (CNR)
Jun Yuan
Jun Yuan University of York
Peter P. Edwards
Peter P. Edwards University of Oxford
David J. Wales
David J. Wales University of Cambridge
C. N. R. Rao
C. N. R. Rao Jawaharlal Nehru Centre for Advanced Scientific Research

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