World's Best Scientists 2026 revealed!
John E. Greedan

John E. Greedan

D-Index & Metrics

Chemistry

D-Index
74
Citations
19360
World Ranking
4704
National Ranking
114

John E. Greedan 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 John E. Greedan 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: 400 publications — 80th percentile

80% of scientists in this discipline score the same or lower.

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

John E. Greedan 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 John E. Greedan 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: 74 D-Index — 75th percentile

75% of scientists in this discipline score the same or lower.

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

Overview

John E. Greedan is affiliated with McMaster University in Canada and conducts research primarily within the fields of Materials Science and Physics and Astronomy. Their work encompasses various subfields, notably Materials Chemistry, Electronic, Optical and Magnetic Materials, and Condensed Matter Physics.

The topics central to Greedan's research include:

  • Advanced Condensed Matter Physics
  • Magnetic and transport properties of perovskites and related materials
  • Multiferroics and related materials
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Nuclear materials and radiation effects
  • Advancements in Solid Oxide Fuel Cells

They have coauthored multiple publications with several frequent collaborators, including:

  • Casey Marjerrison
  • Paul A. Dube
  • Virginia G. Jones
  • K. Pilar Zamorano
  • Hans-Conrad zur Loye

John E. Greedan has contributed to publications in a range of scientific venues. The most frequent publication platforms are:

  • The Cambridge Structural Database
  • Ceramics International
  • Inorganic Chemistry
  • Physical review. B./Physical review. B
  • Physical Review Materials

Recent papers authored or coauthored by Greedan illustrate their focus on advanced materials and condensed matter phenomena. These include:

  • Enhanced electrochemical hydrogen storage performance of lanthanum zirconium oxide ceramic microstructures synthesized by a simple approach, 2023, Ceramics International
  • Structural characterization, phase analysis and electrochemical hydrogen storage studies on new pyrochlore SmRETi2O7 (RE = Dy, Ho, and Yb) microstructures, 2022, Ceramics International
  • Octupolar versus Néel Order in Cubic 5d2 Double Perovskites, 2020, Physical Review Letters
  • Magnetic order and multipoles in the 5d2 rhenium double perovskite Ba2YReO6, 2021, Physical review. B./Physical review. B
  • Microstructural characterization and phase analysis of new pyrochlore-type mixed metal oxides RESmTi2O7 (RE = Gd, Er) by X-ray powder diffraction using Rietveld refinement method and spectroscopic studies, 2022, Ceramics International

Best Publications

  • Magnetic Pyrochlore Oxides

    Jason S. Gardner;Michel J. P. Gingras;John E. Greedan

  • Geometrically frustrated magnetic materials

    John E. Greedan

  • Cooperative Paramagnetism in the Geometrically Frustrated Pyrochlore Antiferromagnet Tb 2 Ti 2 O 7

    J. S. Gardner;S. R. Dunsiger;B. D. Gaulin;M. J. P. Gingras

  • An analysis of the rare earth contribution to the magnetic anisotropy in RCo5 and R2Co17 compounds

    J.E. Greedan;V.U.S. Rao

  • Shaped Ceramics with Tunable Magnetic Properties from Metal-Containing Polymers

    Mark J. MacLachlan;Madlen Ginzburg;Neil Coombs;Thomas W. Coyle

  • Static Critical Behavior of the Spin-Freezing Transition in the Geometrically Frustrated Pyrochlore Antiferromagnet Y 2 Mo 2 O 7

    M. J. P. Gingras;C. V. Stager;N. P. Raju;B. D. Gaulin

  • Thermodynamic and single-ion properties of Tb 3 + within the collective paramagnetic-spin liquid state of the frustrated pyrochlore antiferromagnet Tb 2 Ti 2 O 7

    M. J. P. Gingras;M. J. P. Gingras;B. C. den Hertog;M. Faucher;J. S. Gardner

  • Frustrated rare earth magnetism: Spin glasses, spin liquids and spin ices in pyrochlore oxides

    John E. Greedan

  • Transition to long-range magnetic order in the highly frustrated insulating pyrochlore antiferromagnet Gd 2 Ti 2 O 7

    N. P. Raju;M. Dion;M. J. P. Gingras;T. E. Mason

  • Crystal structures and crystal chemistry of the RETiO3 perovskites: RE = La, Nd, Sm, Gd, Y

    David A. MacLean;Hok-Nam Ng;J.E. Greedan

  • Glassy Statics and Dynamics in the Chemically Ordered Pyrochlore Antiferromagnet Y 2 Mo 2 O 7

    J. S. Gardner;B. D. Gaulin;S.-H. Lee;C. Broholm;C. Broholm

  • Spin freezing in the geometrically frustrated pyrochlore antiferromagnet Tb 2 Mo 2 O 7

    B. D. Gaulin;B. D. Gaulin;J. N. Reimers;J. N. Reimers;T. E. Mason;T. E. Mason;J. E. Greedan;J. E. Greedan

  • Neutron scattering studies of the cooperative paramagnet pyrochlore Tb 2 Ti 2 O 7

    J. S. Gardner;B. D. Gaulin;A. J. Berlinsky;P. Waldron

  • Oxygen-deficient SrTiO3−x, x = 0.28, 0.17, and 0.08. Crystal growth, crystal structure, magnetic, and transport properties

    Wenhe Gong;H. Yun;Y.B. Ning;J.E. Greedan

  • Oxygen ordering in the crystal structure of the 93-K superconductor YBa 2 Cu 3 O 7 using powder neutron diffraction at 298 and 79.5 K

    J. E. Greedan;A. H. O'Reilly;C. V. Stager

  • Structure and Magnetism in λ-MnO2. Geometric Frustration in a Defect Spinel

    JE Greedan;NP Raju;AS Wills;C Morin

  • Spin-glass-like behavior in Y2Mo2O7, a concentrated, crystalline system with negligible apparent disorder

    J.E. Greedan;M. Sato;Xu Yan;F.S. Razavi

  • Spin Glass Behavior in the Frustrated Antiferromagnetic LiNiO2

    Jan N. Reimers;J.R. Dahn;J.E. Greedan;C.V. Stager

  • Low-Temperature Structure and Magnetic Properties of the Spinel LiMn2O4: A Frustrated Antiferromagnet and Cathode Material

    AS Wills;NP Raju;JE Greedan

  • Reversible Lithium Uptake by FeP2

    D. C. C. Silva;O. Crosnier;G. Ouvrard;J. Greedan

  • Far-infrared conductivity of the high-Tc superconductor YBa2Cu3O7.

    Bonn Da;Greedan Je;Stager Cv;Timusk T

Frequent Co-Authors

D. A. Bonn
D. A. Bonn University of British Columbia
Susan M. Kauzlarich
Susan M. Kauzlarich University of California, Davis
Gianluigi A. Botton
Gianluigi A. Botton McMaster University
Craig A. Bridges
Craig A. Bridges Oak Ridge National Laboratory
Ian Manners
Ian Manners University of Victoria
Neil Coombs
Neil Coombs University of Toronto
Manuel Cardona
Manuel Cardona Max Planck Society
Suning Wang
Suning Wang Queen's University
David B. Tanner
David B. Tanner University of Florida
Munirpallam A. Subramanian
Munirpallam A. Subramanian Oregon State University

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