John William Hernlund

5.5k citations

46 papers · 4.4k · 1 hit paper · h-index 26

Impact in

Geophysics top 0.5%
- High-pressure geophysics and materials
- Geological and Geochemical Analysis
- earthquake and tectonic studies
Astronomy and Astrophysics top 5%
- Astro and Planetary Science
- Planetary Science and Exploration

Papers in

Geophysics 40
- High-pressure geophysics and materials 38
- Geological and Geochemical Analysis 37
- earthquake and tectonic studies 24
Astronomy and Astrophysics 6
- Space Science and Extraterrestrial Life 3
- Astro and Planetary Science 3
- Planetary Science and Exploration 3

Co-authors: Stéphane Labrosse (9 shared papers)Kei Hirose (9 shared papers)Nicolas Coltice (4 shared papers)Paul James Tackley (9 shared papers)Thorne Lay (2 shared papers)Bruce Buffett (1 shared paper)Christine Thomas (1 shared paper)Christine Houser (5 shared papers)
Journals: Physics of The Earth and Planetary Interiors (6 papers)Earth and Planetary Science Letters (5 papers)Nature (5 papers)Nature Geoscience (4 papers)Geophysical monograph (2 papers)
Partner nations: United States Japan France

In The Last Decade

John William Hernlund

46 papers receiving 4.3k citations

John William Hernlund's Hit Papers

align trajectories log scale

A crystallizing dense magma ocean at the base of the Earth’s mantle 2007 · 690 citations

What are hit papers?

Paper score: A paper's citations measured against the top-1% bar of its own field and year: the square root of citations ÷ bar, so 1 means right at the bar and 2 means four times its citations. The bar blends the citation counts that enter the top 1% of the paper's subfields in its year (weighted 89.5%), of those subfields over all years (0.5%) and of its year across all fields (10%); a subfield and year with fewer than 400 papers takes its year's bar. Papers from 2026 are not scored yet: in an unfinished year, when a paper appeared matters more than how it is cited.

Hit paper: A paper cited at least 1.5× the top-1% bar of its field and year: a paper score of at least √1.5.

2007 Nature

Peers

Countries citing papers authored by John William Hernlund

Since Specialization

Citations

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

Fields of papers citing papers by John William Hernlund

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John William Hernlund. 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 John William Hernlund. The network helps show where John William Hernlund may publish in the future.

Co-authors

The 25 scholars most cited alongside John William Hernlund, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with John William Hernlund Line = papers co-authored together John William Hernlund links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 46 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	A crystallizing dense magma ocean at the base of the Earth’s mantle Nature ·Stéphane Labrosse, John William Hernlund, Nicolas Coltice Hit paper breakdown →	2007	690
2	Core–mantle boundary heat flow Nature Geoscience ·Thorne Lay, John William Hernlund, Bruce Buffett	2007	399
3	A doubling of the post-perovskite phase boundary and structure of the Earth's lowermost mantle Nature ·John William Hernlund, Christine Thomas, Paul James Tackley	2005	325
4	Composition and State of the Core Annual Review of Earth and Planetary Sciences ·Kei Hirose, Stéphane Labrosse, John William Hernlund	2013	260
5	The high conductivity of iron and thermal evolution of the Earth’s core Physics of The Earth and Planetary Interiors ·Hitoshi Gomi, Kenji Ohta, Kei Hirose, Stéphane Labrosse, Razvan Caracas, Matthieu Jean Verstraete, John William Hernlund	2013	240
6	Spin crossover and iron-rich silicate melt in the Earth’s deep mantle Nature ·Ryuichi Nomura, Haruka Ozawa, Shigehiko Tateno, Kei Hirose, John William Hernlund, Shunsuke Muto, Hirofumi Ishii, Nozomu Hiraoka	2011	235
7	A Post-Perovskite Lens and D'' Heat Flux Beneath the Central Pacific Science ·Thorne Lay, John William Hernlund, Edward J. Garnero, Michael Thorne	2006	232
8	Crystallization of silicon dioxide and compositional evolution of the Earth’s core Nature ·Kei Hirose, G. Morard, Ryosuke Sinmyo, Koichiro Umemoto, John William Hernlund, George R. Helffrich, Stéphane Labrosse	2017	187
9	Persistence of strong silica-enriched domains in the Earth’s lower mantle Nature Geoscience ·Maxim Ballmer, Christine Houser, John William Hernlund, Renata M. M. Wentzcovitch, Kei Hirose	2017	169
10	Ponded melt at the boundary between the lithosphere and asthenosphere Nature Geoscience ·Tatsuya Sakamaki, AKIO S. SUZUKI, Eiji Ohtani, Hidenori Terasaki, Satoru Urakawa, Yoshinori Katayama, K. Funakoshi, Yanbin Wang	2013	157
11	Upside-down differentiation and generation of a ‘primordial’ lower mantle Nature ·Cin‐Ty A. Lee, Péter Luffi, Tobias Höink, Jie Li, Rajdeep Dasgupta, John William Hernlund	2010	155
12	Experimental evidence for hydrogen incorporation into Earth’s core Nature Communications ·Shoh Tagawa, Naoya Sakamoto, Kei Hirose, S. Yokoo, John William Hernlund, Yasuo Ohishi, Hisayoshi Yurimoto	2021	117
13	Lattice thermal conductivity of MgSiO3 perovskite and post-perovskite at the core–mantle boundary Earth and Planetary Science Letters ·Kenji Ohta, Takashi Yagi, Naoyuki Taketoshi, Kei Hirose, Tetsuya Komabayashi, Tetsuya Baba, Yasuo Ohishi, John William Hernlund	2012	116
14	Modeling mantle convection in the spherical annulus Physics of The Earth and Planetary Interiors ·John William Hernlund, Paul James Tackley	2008	115
15	On the statistical distribution of seismic velocities in Earth's deep mantle Earth and Planetary Science Letters ·John William Hernlund, Christine Houser	2007	113
16	A numerical model for steady-state temperature distributions in solid-medium high-pressure cell assemblies American Mineralogist ·John William Hernlund	2006	108
17	Crystallization of a basal magma ocean recorded by Helium and Neon Earth and Planetary Science Letters ·Nicolas Coltice, Manuel Moreira, John William Hernlund, Stéphane Labrosse	2011	72
18	Dynamics and structure of a stirred partially molten ultralow-velocity zone Earth and Planetary Science Letters ·John William Hernlund, Mark Jellinek	2010	72
19	Perovskite in Earth’s deep interior Science ·Kei Hirose, Ryosuke Sinmyo, John William Hernlund	2017	70
20	Formation, stratification, and mixing of the cores of Earth and Venus Earth and Planetary Science Letters ·Seth A. Jacobson, David C Rubie, John William Hernlund, Alessandro Morbidelli, Miki Nakajima	2017	66

About John William Hernlund

John William Hernlund is a scholar working on Geophysics, Astronomy and Astrophysics, Geology, Atmospheric Science and Molecular Biology, having authored 46 papers that have together received 4.4k indexed citations. Recurring topics across this work include High-pressure geophysics and materials (38 papers), Geological and Geochemical Analysis (37 papers), earthquake and tectonic studies (24 papers), Geomagnetism and Paleomagnetism Studies (8 papers), Space Science and Extraterrestrial Life (3 papers), Astro and Planetary Science (3 papers), Planetary Science and Exploration (3 papers) and Geological Studies and Exploration (2 papers). The work is most often cited by research in Geophysics (3.6k citations), Astronomy and Astrophysics (730 citations), Atmospheric Science (328 citations), Ceramics and Composites (80 citations) and Molecular Biology (738 citations). John William Hernlund has collaborated with scholars based in United States, Japan and France. Frequent co-authors include Stéphane Labrosse, Kei Hirose, Nicolas Coltice, Paul James Tackley, Thorne Lay, Bruce Buffett, Christine Thomas, Christine Houser, Edward J. Garnero and Michael Thorne. Their work appears in journals such as Physics of The Earth and Planetary Interiors, Earth and Planetary Science Letters, Nature, Nature Geoscience and Geophysical monograph.

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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John William Hernlund

John William Hernlund's Hit Papers

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About John William Hernlund

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