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Masaki Akaogi

Masaki Akaogi

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 48 15201 13697 1189 1078 171 8677

Masaki Akaogi publications per year

The chart shows the history of publications by Masaki Akaogi between 1976 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Masaki Akaogi published across 51 years, from 1976 to 2026, averaging 4.5 papers a year. Output peaked at 15 publications in 2014. 2 of the 228 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1976 to 2026. Vertical axis: number of publications, 0 to 15. Peak 15 publications in 2014. 1976: 2 publications 1977: 1 publication 1978: 2 publications 1979: 1 publication 1980: 2 publications 1981: 1 publication 1982: 3 publications 1983: 1 publication 1984: 4 publications 1985: 2 publications 1986: 3 publications 1987: 5 publications 1988: 0 publications 1989: 3 publications 1990: 3 publications 1991: 3 publications 1992: 1 publication 1993: 3 publications 1994: 5 publications 1995: 5 publications 1996: 3 publications 1997: 3 publications 1998: 6 publications 1999: 2 publications 2000: 9 publications 2001: 1 publication 2002: 6 publications 2003: 7 publications 2004: 6 publications 2005: 7 publications 2006: 2 publications 2007: 6 publications 2008: 9 publications 2009: 8 publications 2010: 4 publications 2011: 8 publications 2012: 10 publications 2013: 13 publications 2014: 15 publications 2015: 4 publications 2016: 5 publications 2017: 7 publications 2018: 8 publications 2019: 5 publications 2020: 1 publication 2021: 4 publications 2022: 13 publications 2023: 2 publications 2024: 2 publications 2025: 1 publication 2026: 1 publication
1976 2026

228 publications in total across all disciplines

View publications per year as a table
Masaki Akaogi: publications per year, 1976 to 2026
Year Publications
1976 2
1977 1
1978 2
1979 1
1980 2
1981 1
1982 3
1983 1
1984 4
1985 2
1986 3
1987 5
1988 0
1989 3
1990 3
1991 3
1992 1
1993 3
1994 5
1995 5
1996 3
1997 3
1998 6
1999 2
2000 9
2001 1
2002 6
2003 7
2004 6
2005 7
2006 2
2007 6
2008 9
2009 8
2010 4
2011 8
2012 10
2013 13
2014 15
2015 4
2016 5
2017 7
2018 8
2019 5
2020 1
2021 4
2022 13
2023 2
2024 2
2025 1
2026 1
Total 228
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Masaki Akaogi 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 Masaki Akaogi 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, 161–180 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: 171 publications — 22nd percentile

22% 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 1,350 171
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
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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Masaki Akaogi 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 Masaki Akaogi 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, 48–49 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: 48 D-Index — 16th percentile

16% 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 48
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
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

Masaki Akaogi is a researcher affiliated with Gakushuin University in Japan, specializing in Earth and Planetary Sciences, Materials Science, and Engineering. Their work primarily focuses on high-pressure geophysics and materials, geological and geochemical analysis, crystal structures and properties, earthquake and tectonic studies, nuclear materials and radiation effects, advanced condensed matter physics, and electronic and structural properties of oxides.

Akaogi has published extensively in these areas, contributing to over thirty publications within Earth and Planetary Sciences and more than twenty in Materials Science. Their subfields of study include geophysics, materials chemistry, electronic, optical and magnetic materials, electrical and electronic engineering, and condensed matter physics.

Frequent co-authors in their research collaborations include Hiroshi Kojitani, Takayuki Ishii, Yoshiyuki Inaguma, Kazunari Yamaura, and Giacomo Criniti.

Their recent papers include:

  • Post-spinel-type AB2O4 high-pressure phases in geochemistry and materials science, 2024, Communications Chemistry
  • Enthalpy, heat capacity and thermal expansivity measurements of MgSiO3 akimotoite: Reassessment of its self-consistent thermodynamic data set, 2022, Physics of The Earth and Planetary Interiors
  • Discovery of New-Structured Post-Spinel MgFe2O4: Crystal Structure and High-Pressure Phase Relations, 2020, Geophysical Research Letters
  • High-pressure syntheses and crystal structure analyses of a new low-density CaFe2O4-related and CaTi2O4-type MgAl2O4 phases, 2020, American Mineralogist
  • High-pressure and high-temperature phase relations in the systems KAlSiO4-MgAl2O4 and CaAl2O4-MgAl2O4: Stability fields of NAL phases, 2020, Physics of The Earth and Planetary Interiors

In addition to journal articles, Akaogi has contributed to book publications, including a title published by Springer Nature: "High-Pressure Silicates and Oxides" (2022).

The primary venues for their research publications are:

  • American Mineralogist
  • Physics of The Earth and Planetary Interiors
  • Physics and Chemistry of Minerals
  • Geophysical Research Letters
  • Communications Chemistry

Best Publications

  • Olivine-modified spinel-spinel transitions in the system Mg2SiO4-Fe2SiO4: Calorimetric measurements, thermochemical calculation, and geophysical application

    Masaki Akaogi;Eiji Ito;Alexandra Navrotsky

  • Molecular Dynamics Simulation of the Structural and Physical Properties of the Four Polymorphs of TiO2

    Masanori Matsui;Masaki Akaogi

  • A ferroelectric-like structural transition in a metal

    Youguo Shi;Yanfeng Guo;Yanfeng Guo;Xia Wang;Andrew J. Princep

  • Pyroxene-garnet solid-solution equilibria in the systems Mg4Si4O12Mg3Al2Si3O12 and Fe4Si4O12Fe3Al2Si3O12 at high pressures and temperatures

    M. Akaogi;S. Akimoto

  • High-pressure phase equilibria in a garnet lherzolite, with special reference to Mg2+Fe2+ partitioning among constituent minerals

    M. Akaogi;S. Akimoto

  • Negative Pressure-Temperature Slopes for Reactions Formign MgSiO3 Perovskite from Calorimetry

    E. Ito;M. Akaogi;L. Topor;A. Navrotsky

  • In situ observation of the olivine‐spinel phase transformation in Fe2SiO4 using synchrotron radiation

    Takehiko Yagi;Masaki Akaogi;Osamu Shimomura;Toshihiro Suzuki

  • The quartz-coesite-stishovite transformations: new calorimetric measurements and calculation of phase diagrams

    Masaki Akaogi;Alexandra Navrotsky

  • The Mg 2 SiO 4 polymorphs (olivine, modified spinel and spinel); thermodynamic properties from oxide melt solution calorimetry, phase relations, and models of lattice vibrations

    Masaki Akaogi;Nancy L. Ross;Paul McMillan;Alexandra Navrotsky

  • High pressure transitions in the system KAlSi3O8-NaAlSi3O8

    Atsushi Yagi;Toshihiro Suzuki;Masaki Akaogi

  • Garnet-perovskite transformation in CaGeO3: In-situ X-ray measurements using synchrotron radiation

    J. Susaki;M. Akaogi;S. Akimoto;O. Shimomura

  • Computational model of the structural and elastic properties of the ilmenite and perovskite phases of MgSiO3

    Masanori Matsui;Masaki Akaogi;Takeo Matsumoto

  • Post-garnet transitions in the system Mg4Si4O12–Mg3Al2Si3O12 up to 28 GPa: phase relations of garnet, ilmenite and perovskite

    Atsushi Kubo;Masaki Akaogi

  • HIGH PRESSURE TRANSITIONS IN THE SYSTEM MGAL2O4-CAAL2O4 A NEW HEXAGONAL ALUMINOUS PHASE WITH IMPLICATION FOR THE LOWER MANTLE

    M Akaogi;Y Hamada;T Suzuki;M Kobayashi

  • Garnet–ilmenite–perovskite transitions in the system Mg4Si4O12–Mg3Al2Si3O12 at high pressures and high temperatures: phase equilibria, calorimetry and implications for mantle structure

    Masaki Akaogi;Akira Tanaka;Eiji Ito

  • High-pressure synthesis, crystal structure, and phase stability relations of a LiNbO3-type polar titanate ZnTiO3 and its reinforced polarity by the second-order Jahn-Teller effect.

    Yoshiyuki Inaguma;Akihisa Aimi;Yuichi Shirako;Daichi Sakurai

  • Hydrostatic compression of the synthetic garnets pyrope and almandine

    Yosiko Sato;Masaki Akaogi;Syun-Iti Akimoto

  • Low-temperature heat capacities, entropies and enthalpies of Mg 2 SiO 4 polymorphs, and α−β−γ and post-spinel phase relations at high pressure

    M. Akaogi;H. Takayama;H. Kojitani;H. Kawaji

  • High-pressure transformation of pyrope (Mg3Al2Si3O12) in a sintered diamond cubic anvil assembly

    E. Ito;A. Kubo;T. Katsura;M. Akaogi

  • Pyroxene-Garnet Transformation: Thermochemistry and Elasticity of Garnet Solid Solutions, and Application to a Pyrolite Mantle

    Masaki Akaogi;Alexandra Navrotsky;Takehiko Yagii;Syun-Iti Akimoto

  • Hydroxyl groups in β-Mg2SiO4

    Paul F. McMillan;Masaki Akaogi;Robert K. Sato;Brent Poe

Frequent Co-Authors

Kazunari Yamaura
Kazunari Yamaura National Institute for Materials Science
Yoshiyuki Inaguma
Yoshiyuki Inaguma Gakushuin University
Eiji Ito
Eiji Ito Okayama University
Syun-iti Akimoto
Syun-iti Akimoto University of Tokyo
Eiji Takayama-Muromachi
Eiji Takayama-Muromachi National Institute for Materials Science
Alexandra Navrotsky
Alexandra Navrotsky Arizona State University
Yoshitaka Matsushita
Yoshitaka Matsushita National Institute for Materials Science
Takehiko Yagi
Takehiko Yagi University of Tokyo
Youguo Shi
Youguo Shi Chinese Academy of Sciences
Tomoo Katsura
Tomoo Katsura University of Bayreuth

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