Total 2,424,675 scientists, country 221, and institutions 24,468 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
![Vera Smolyaninova](/user/assets/images/profile/no-profile-photo.png)
CMR materials
metamaterials
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
18
0.346
* Total i10 IndexRankings
Ranking Based On Selection: 2
![James Overduin](https://cdn.adscientificindex.com/pictures/31/1734263.jpg)
physics
astronomy
astrophysics
cosmology
gravitation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
16
0.372
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Jeff Simpson](https://cdn.adscientificindex.com/pictures/ed/1734462.jpg)
Condensed matter physics
nanoscale science
carbon nanotubes
Raman spectroscopy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
29
0.763
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Jia An Yan](https://cdn.adscientificindex.com/pictures/d5/1734714.jpg)
Condensed matter physics
Denstiy-functional theory
2D materials
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
34
25
0.735
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Phuoc Ha](https://cdn.adscientificindex.com/pictures/37/1738388.jpg)
High Energy Physics
Computational Physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
10
0.526
Vera Smolyaninova
Towson University
Towson, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
18
0.346
James Overduin
Towson University
Towson, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
16
0.372
physics
astronomy
astrophysics
cosmology
gravitation
Jeff Simpson
Towson University
Towson, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
29
0.763
Condensed matter physics
nanoscale science
carbon nanotubes
Raman spectroscopy
Jia An Yan
Towson University
Towson, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
34
25
0.735
Condensed matter physics
Denstiy-functional theory
2D materials
Phuoc Ha
Towson University
Towson, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
10
0.526