i10 Productivity
Rankings

Sofia University St Kliment Ohridski 775 Scientists i10 Productivity Rankings (Sort by last 6 years i10 Index) - 2025

Total 2,395,742 scientists, country 221, and institutions 24,456 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.

* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 1
Bulgaria
Peicho Petkov
Particle Physics
High Performance Computing
Molecular Dynamics simulations
Antimicrobial Peptides
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
488
389
0.797
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 2
Bulgaria
Venelin Kozhuharov
Particle physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
445
334
0.751
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 3
Bulgaria
Nikolai Denkov
foams
antifoams
rheology
surfactants
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
174
132
0.759
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 4
Bulgaria
Ivan Boyanov Ivanov
Physicochemical Hydrodynamics of Liquid Films
Thermodynamics of Thin Liquid Films
Emulsions and Emulsification
Foams and Foam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
293
129
0.440
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 5
Bulgaria
Nikolay V. Vitanov
quantum information
quantum computation
quantum optics
quantum control
coherent control
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
192
116
0.604
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 6
Bulgaria
Peter A. Kralchevsky
Colloid and Interface Science
Interfacial Phenomena
Thin Liquid Films
Molecular Self-assembly
Soft Matter
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
188
104
0.553
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 7
Bulgaria
Stoytcho Yazadjiev
Physics
General Relativity
Black Holes
Gravitational Waves
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
135
93
0.689
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 8
Bulgaria
Slavka Tcholakova
formation
stability and rheology of foams and emulsions
surfactants
digestion
porous materials
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
103
93
0.903
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 9
Bulgaria
Krasimir Danov
thin liquid films
physicochemical thermodynamics and hydrodynamics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
150
88
0.587
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 10
Bulgaria
Roumen Tsenov
Higher education
Research
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
176
84
0.477

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 11
Bulgaria
Dimitar Kolev
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
140
65
0.464
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 12
Bulgaria
Ivo Grabchev
dendrimers
dyes
fluorescent dyes
sensors
antimicrobial
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
148
61
0.412
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 13
Bulgaria
Vassil Verguilov
Astroparticle and Particle Physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
61
57
0.934
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 14
Bulgaria
Hristiyan Aleksandrov
Catalysis
Theoretical chemistry
Organic chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
65
54
0.831
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 15
Bulgaria
Vasil Simeonov
chemometrics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
114
48
0.421
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 16
Bulgaria
Miroslav V. Abrashev
Condensed Matter Physics
Raman Spectroscopy
General Physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
47
0.610
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 17
Bulgaria
Василий Голцев
биофизика
стрес и адаптация при растенията
математично моделиране
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
47
0.644
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 18
Bulgaria
Valentin N. Popov
condensed matter physics
graphene
carbon nanotubes
Raman spectroscopy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
83
41
0.494
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 19
Bulgaria
Galina Vankova-Kirilova
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
37
0.804
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 20
Bulgaria
Tony Spassov
chemistry
materials science
hydrogen storage
metallic glasses
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
71
36
0.507
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 21
Bulgaria
Stoyan Ivanov Karakashev
Dispersed systems
flotation of mineral particles
thin liquid films
ion-soecific effects
wetting
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
36
0.643
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 22
Bulgaria
Petko Petkov; Petko St Petkov
Material science
Computational Chemistry
Catalysis
Spectroscopy
Metal clusters
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
36
0.766
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 23
Bulgaria
Kiril Hristov
Theoreticle particle physics
String theory
Supergravity
Black Holes
AdS/CFT correspondence
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
35
0.875
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 24
Bulgaria
Georgi Rainovski
nuclear physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
33
0.429
* Last 6 Years i10 IndexRankings
Ranking Based On Selection: 25
Bulgaria
Maya Petrova Stoyneva-Gärtner
Algology
Limnology
Mycology
Lichenology
Conservation Biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
74
31
0.419
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 1
Peicho Petkov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
488
389
0.797
Particle Physics
High Performance Computing
Molecular Dynamics simulations
Antimicrobial Peptides
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 2
Venelin Kozhuharov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
445
334
0.751
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 3
Nikolai Denkov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
174
132
0.759
foams
antifoams
rheology
surfactants
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 4
Ivan Boyanov Ivanov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
293
129
0.440
Physicochemical Hydrodynamics of Liquid Films
Thermodynamics of Thin Liquid Films
Emulsions and Emulsification
Foams and Foam
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 5
Nikolay V. Vitanov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
192
116
0.604
quantum information
quantum computation
quantum optics
quantum control
coherent control
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 6
Peter A. Kralchevsky
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
188
104
0.553
Colloid and Interface Science
Interfacial Phenomena
Thin Liquid Films
Molecular Self-assembly
Soft Matter
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 7
Stoytcho Yazadjiev
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
135
93
0.689
Physics
General Relativity
Black Holes
Gravitational Waves
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 8
Slavka Tcholakova
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
103
93
0.903
formation
stability and rheology of foams and emulsions
surfactants
digestion
porous materials
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 9
Krasimir Danov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
150
88
0.587
thin liquid films
physicochemical thermodynamics and hydrodynamics
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 10
Roumen Tsenov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
176
84
0.477

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 11
Dimitar Kolev
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
140
65
0.464
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 12
Ivo Grabchev
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
148
61
0.412
dendrimers
dyes
fluorescent dyes
sensors
antimicrobial
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 13
Vassil Verguilov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
61
57
0.934
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 14
Hristiyan Aleksandrov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
65
54
0.831
Catalysis
Theoretical chemistry
Organic chemistry
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 15
Vasil Simeonov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
114
48
0.421
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 16
Miroslav V. Abrashev
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
47
0.610
Condensed Matter Physics
Raman Spectroscopy
General Physics
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 17
Василий Голцев
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
47
0.644
биофизика
стрес и адаптация при растенията
математично моделиране
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 18
Valentin N. Popov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
83
41
0.494
condensed matter physics
graphene
carbon nanotubes
Raman spectroscopy
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 19
Galina Vankova-Kirilova
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
37
0.804
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 20
Tony Spassov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
71
36
0.507
chemistry
materials science
hydrogen storage
metallic glasses
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 21
Stoyan Ivanov Karakashev
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
36
0.643
Dispersed systems
flotation of mineral particles
thin liquid films
ion-soecific effects
wetting
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 22
Petko Petkov; Petko St Petkov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
36
0.766
Material science
Computational Chemistry
Catalysis
Spectroscopy
Metal clusters
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 23
Kiril Hristov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
35
0.875
Theoreticle particle physics
String theory
Supergravity
Black Holes
AdS/CFT correspondence
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 24
Georgi Rainovski
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
33
0.429
* Last 6 Years i10 Index Rankings
Rankings
Ranking Based On Selection: 25
Maya Petrova Stoyneva-Gärtner
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
74
31
0.419
Algology
Limnology
Mycology
Lichenology
Conservation Biology