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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 69 6261 5683 1906 1584 345 15538

Millard H. Alexander publications per year

The chart shows the history of publications by Millard H. Alexander between 1963 and 2024, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Millard H. Alexander published across 62 years, from 1963 to 2024, averaging 5.9 papers a year. Output peaked at 16 publications in 1976. 2 of the 368 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1963 to 2024. Vertical axis: number of publications, 0 to 16. Peak 16 publications in 1976. 1963: 1 publication 1964: 0 publications 1965: 0 publications 1966: 0 publications 1967: 3 publications 1968: 0 publications 1969: 2 publications 1970: 2 publications 1971: 1 publication 1972: 2 publications 1973: 1 publication 1974: 7 publications 1975: 3 publications 1976: 16 publications 1977: 9 publications 1978: 3 publications 1979: 4 publications 1980: 5 publications 1981: 1 publication 1982: 5 publications 1983: 9 publications 1984: 8 publications 1985: 7 publications 1986: 8 publications 1987: 8 publications 1988: 11 publications 1989: 9 publications 1990: 13 publications 1991: 10 publications 1992: 6 publications 1993: 13 publications 1994: 13 publications 1995: 12 publications 1996: 3 publications 1997: 5 publications 1998: 5 publications 1999: 4 publications 2000: 13 publications 2001: 8 publications 2002: 6 publications 2003: 5 publications 2004: 10 publications 2005: 3 publications 2006: 3 publications 2007: 12 publications 2008: 15 publications 2009: 9 publications 2010: 6 publications 2011: 7 publications 2012: 11 publications 2013: 13 publications 2014: 10 publications 2015: 8 publications 2016: 4 publications 2017: 5 publications 2018: 3 publications 2019: 2 publications 2020: 1 publication 2021: 2 publications 2022: 1 publication 2023: 1 publication 2024: 1 publication
1963 2024

368 publications in total across all disciplines

View publications per year as a table
Millard H. Alexander: publications per year, 1963 to 2024
Year Publications
1963 1
1964 0
1965 0
1966 0
1967 3
1968 0
1969 2
1970 2
1971 1
1972 2
1973 1
1974 7
1975 3
1976 16
1977 9
1978 3
1979 4
1980 5
1981 1
1982 5
1983 9
1984 8
1985 7
1986 8
1987 8
1988 11
1989 9
1990 13
1991 10
1992 6
1993 13
1994 13
1995 12
1996 3
1997 5
1998 5
1999 4
2000 13
2001 8
2002 6
2003 5
2004 10
2005 3
2006 3
2007 12
2008 15
2009 9
2010 6
2011 7
2012 11
2013 13
2014 10
2015 8
2016 4
2017 5
2018 3
2019 2
2020 1
2021 2
2022 1
2023 1
2024 1
Total 368
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Millard H. Alexander 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 Millard H. Alexander sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 341–360 publications, is where this scientist sits. 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
61–80 publications 1,295+

This scientist: 345 publications — 72nd percentile

72% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628 345
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Millard H. Alexander 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 Millard H. Alexander sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 68–69 D-Index, is where this scientist sits. 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
40–41 D-Index 159+

This scientist: 69 D-Index — 66th percentile

66% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683 69
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

Millard H. Alexander is affiliated with the University of Maryland, College Park in the United States. Their research primarily spans the fields of Physics and Astronomy, Chemistry, and Earth and Planetary Sciences. Within these broader disciplines, their work focuses on Atomic and Molecular Physics, and Optics, Spectroscopy, Atmospheric Science, Astronomy and Astrophysics, as well as Global and Planetary Change.

Their research topics include:

  • Spectroscopy and Laser Applications
  • Advanced Chemical Physics Studies
  • Atmospheric Ozone and Climate
  • Cold Atom Physics and Bose-Einstein Condensates
  • Spectroscopy and Quantum Chemical Studies
  • Astrophysics and Star Formation Studies
  • Quantum, superfluid, helium dynamics

Several recent publications provide insight into Alexander's research contributions:

  • Hibridon: A program suite for time-independent non-reactive quantum scattering calculations, 2023, Computer Physics Communications
  • The excitation of OH by H2 revisited - II. Hyperfine resolved rate coefficients, 2020, Monthly Notices of the Royal Astronomical Society
  • Rotational energy transfer kinetics of optically centrifuged CO molecules investigated through transient IR spectroscopy and master equation simulations, 2022, Faraday Discussions
  • Development of the Time-Independent Methods for the Cl + H2/F + HD Reaction Using Hyper-Spherical Coordinates Including (Full) Spin-Orbit Characteristics, 2024, Journal of Chemical Theory and Computation
  • Nascent Rotational Distributions of CO Excited by Optical Centrifuge and Master Equation Modeling of Collisional Energy Transfer, 2021, Frontiers in Optics + Laser Science 2021

Frequent coauthors collaborating with Alexander include:

  • Paul J. Dagdigian
  • Jacek Kłos
  • François Lique
  • Matthew R. Laskowski
  • Amy S. Mullin

Alexander's work has appeared in various scientific venues, reflecting the interdisciplinary nature of their research:

  • Computer Physics Communications
  • Faraday Discussions
  • Monthly Notices of the Royal Astronomical Society
  • Journal of Chemical Theory and Computation
  • Frontiers in Optics + Laser Science 2021

Best Publications

  • A stable linear reference potential algorithm for solution of the quantum close‐coupled equations in molecular scattering theory

    Millard H. Alexander;David E. Manolopoulos

  • Rotationally inelastic collisions between a diatomic molecule in a2Π electronic state and a structureless target

    Millard H. Alexander

  • Quantum treatment of rotationally inelastic collisions involving molecules in II electronic states: New derivation of the coupling potential

    Millard H. Alexander

  • An investigation of the F+H2 reaction based on a full ab initio description of the open-shell character of the F(2P) atom

    Millard H. Alexander;David E. Manolopoulos;Hans-Joachim Werner

  • Adiabatic and diabatic potential energy surfaces for collisions of CN(X 2Σ+, A 2Π) with He

    Hans‐Joachim Werner;Bernd Follmeg;Millard H. Alexander

  • A nomenclature for Λ‐doublet levels in rotating linear molecules

    M. H. Alexander;P. Andresen;R. Bacis;R. Bersohn

  • BASECOL2012: A collisional database repository and web service within the Virtual Atomic and Molecular Data Centre (VAMDC)

    Marie-Lise Dubernet;M.H. Alexander;Y.A. Ba;N. Balakrishnan

  • Dipolar model for collisional energy transfer between dark and radiating excited electronic states: CaO(A′ 1Π, a 3Π) +N2O ⇄ CaO(A 1Σ+)+N2O

    Millard H. Alexander

  • Theoretical study of the validity of the Born-Oppenheimer approximation in the Cl + H2 --> HCl + H reaction.

    Millard H. Alexander;Gabriella Capecchi;Hans-Joachim Werner

  • Spin–orbit effects in the reaction of F(2P) with H2

    Millard H. Alexander;Hans-Joachim Werner;David E. Manolopoulos

  • Breakdown of the Born-Oppenheimer approximation in the F+ o-D2 -> DF + D reaction.

    Li Che;Zefeng Ren;Xingan Wang;Wenrui Dong

  • Clarification of the electronic asymmetry in Π‐state Λ doublets with some implications for molecular collisions

    Millard H. Alexander;Paul J. Dagdigian

  • Global geometry optimization of (Ar)n and B(Ar)n clusters using a modified genetic algorithm

    Susan K. Gregurick;Millard H. Alexander;Bernd Hartke

  • Quantum scattering studies of electronically inelastic collisions of CN (X 2Σ+, A 2Π) with He

    Hans‐Joachim Werner;Bernd Follmeg;Millard H. Alexander;Didier Lemoine

  • The inelastic scattering of 2Π [case (b)] molecules and an understanding of the differing Λ doublet propensities for molecules of π vs π3 orbital occupancy

    Paul J. Dagdigian;Millard H. Alexander;Kopin Liu

  • A new, fully ab initio investigation of the NO(X 2Π)Ar system. I. Potential energy surfaces and inelastic scattering

    Millard H. Alexander

  • Symmetry considerations in the quantum treatment of collisions between two diatomic molecules

    Millard H. Alexander;Andrew E. DePristo

  • Collision induced transitions between 2Π and 2Σ states of diatomic molecules: Quantum theory and collisional propensity rules

    Millard H. Alexander;Gregory C. Corey

  • Differential and integral cross sections for the inelastic scattering of NO (X 2Π) by Ar based on a new ab initio potential energy surface

    Millard H. Alexander

  • Spin–orbit branching in the photofragmentation of HCl

    Millard H. Alexander;Brigitte Pouilly;Thierry Duhoo

  • Rotationally inelastic collisions between a diatomic molecule in a 2Σ+ electronic state and a structureless target

    Unknown

Frequent Co-Authors

Paul J. Dagdigian
Paul J. Dagdigian Johns Hopkins University
Hans-Joachim Werner
Hans-Joachim Werner University of Stuttgart
Andrew E. DePristo
Andrew E. DePristo Iowa State University
David E. Manolopoulos
David E. Manolopoulos University of Oxford
Hua Guo
Hua Guo University of New Mexico
Daniel M. Neumark
Daniel M. Neumark University of California, Berkeley
Ad van der Avoird
Ad van der Avoird Radboud University
Dong H. Zhang
Dong H. Zhang Dalian Institute of Chemical Physics
Xueming Yang
Xueming Yang Dalian Institute of Chemical Physics
Marsha I. Lester
Marsha I. Lester University of Pennsylvania

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