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Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 1.326 Scientists Citation Rankings - 2026

See how widely and consistently research is cited with real-time citation rankings.
Covering 2.6 million scientists, this list evaluates both total and last 5 years’ citation counts to measure scientific influence and highlight Highly Cited Researchers.
Built on transparency, it also addresses unethical practices and encourages reporting of violations. Compare results across 13 fields and 221 disciplines.

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Total 1.326 scientists , Updates every 3 days
* Total Citation Counts Rankings

Rankings

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514
World Rank
United States
203
Country Rank
University of California Santa Barbara Logo
1
University
Ranking Based On Selection:
1
Richard E Mayer
University of California Santa Barbara Santa Barbara, United States
Education / Educational Psychology
Educational psycholog

Citation Metrics

  • Total
    267,492
  • Last 5 Years
    92,120
  • Last 5 Years / Total
    0.344
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* Total Citation Counts Rankings

Rankings

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716
World Rank
United States
272
Country Rank
University of California Santa Barbara Logo
2
University
Ranking Based On Selection:
2
Pierre Petroff
University of California Santa Barbara Santa Barbara, United States
Natural Sciences / Physics
solid state physics | semiconductor quantum materials and device

Citation Metrics

  • Total
    236,124
  • Last 5 Years
    76,409
  • Last 5 Years / Total
    0.324
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* Total Citation Counts Rankings

Rankings

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1,738
World Rank
United States
742
Country Rank
University of California Santa Barbara Logo
3
University
Ranking Based On Selection:
3
Galen Stucky
University of California Santa Barbara Santa Barbara, United States
Natural Sciences / Chemical Sciences

Citation Metrics

  • Total
    152,979
  • Last 5 Years
    20,689
  • Last 5 Years / Total
    0.135
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* Total Citation Counts Rankings

Rankings

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1,950
World Rank
United States
845
Country Rank
University of California Santa Barbara Logo
4
University
Ranking Based On Selection:
4
Jacob Israelachvili
University of California Santa Barbara Santa Barbara, United States
Engineering & Technology / Chemical Engineering
surface force

Citation Metrics

  • Total
    144,443
  • Last 5 Years
    27,125
  • Last 5 Years / Total
    0.188
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* Total Citation Counts Rankings

Rankings

flag
3,201
World Rank
United States
1,471
Country Rank
University of California Santa Barbara Logo
5
University
Ranking Based On Selection:
5
Craig Hawker
University of California Santa Barbara Santa Barbara, United States
Engineering & Technology / Metallurgical & Materials Engineering
Chemistry | Polymer Science | Materials | Polymers | Polymer Chemistr

Citation Metrics

  • Total
    111,218
  • Last 5 Years
    27,310
  • Last 5 Years / Total
    0.246
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* Total Citation Counts Rankings

Rankings

flag
3,490
World Rank
United States
1,610
Country Rank
University of California Santa Barbara Logo
6
University
Ranking Based On Selection:
6
Tao Yang
University of California Santa Barbara Santa Barbara, United States
Engineering & Technology / Computer Science
Parallel and distributed systems | Internet search | high performance computin

Citation Metrics

  • Total
    106,427
  • Last 5 Years
    72,750
  • Last 5 Years / Total
    0.684
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* Total Citation Counts Rankings

Rankings

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3,748
World Rank
United States
1,716
Country Rank
University of California Santa Barbara Logo
7
University
Ranking Based On Selection:
7
Steven DenBaars
University of California Santa Barbara Santa Barbara, United States
Others
Solid State Lighting | LEDs | Power Switching | Energy Efficienc

Citation Metrics

  • Total
    102,268
  • Last 5 Years
    27,158
  • Last 5 Years / Total
    0.266
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* Total Citation Counts Rankings

Rankings

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4,233
World Rank
United States
1,950
Country Rank
University of California Santa Barbara Logo
8
University
Ranking Based On Selection:
8
Chris G Van De Walle
University of California Santa Barbara Santa Barbara, United States
Engineering & Technology / Metallurgical & Materials Engineering
Condensed Matter Physics | Materials Scienc

Citation Metrics

  • Total
    95,417
  • Last 5 Years
    29,622
  • Last 5 Years / Total
    0.310
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* Total Citation Counts Rankings

Rankings

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4,543
World Rank
United States
2,089
Country Rank
University of California Santa Barbara Logo
9
University
Ranking Based On Selection:
9
Jim Speck
University of California Santa Barbara Santa Barbara, United States
Engineering & Technology / Metallurgical & Materials Engineering
semiconductor

Citation Metrics

  • Total
    91,491
  • Last 5 Years
    22,790
  • Last 5 Years / Total
    0.249
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* Total Citation Counts Rankings

Rankings

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4,584
World Rank
United States
2,110
Country Rank
University of California Santa Barbara Logo
10
University
Ranking Based On Selection:
10
Benjamin S Halpern
University of California Santa Barbara Santa Barbara, United States
Engineering & Technology / Marine Sciences and Engineering
Marine ecology | conservation biolog

Citation Metrics

  • Total
    91,255
  • Last 5 Years
    39,674
  • Last 5 Years / Total
    0.435
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* Total Citation Counts Rankings

Rankings

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4,658
World Rank
United States
2,143
Country Rank
University of California Santa Barbara Logo
11
University
Ranking Based On Selection:
11
John Bowers
University of California Santa Barbara Santa Barbara, United States
Engineering & Technology / Electrical & Electronic Engineering
Photonics | optoelectronics | optical switching | MEMS | silicon photonic

Citation Metrics

  • Total
    90,447
  • Last 5 Years
    36,003
  • Last 5 Years / Total
    0.398
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* Total Citation Counts Rankings

Rankings

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5,012
World Rank
United States
2,305
Country Rank
University of California Santa Barbara Logo
12
University
Ranking Based On Selection:
12
Umesh Mishra
University of California Santa Barbara Santa Barbara, United States
Others

Citation Metrics

  • Total
    86,428
  • Last 5 Years
    20,428
  • Last 5 Years / Total
    0.236
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* Total Citation Counts Rankings

Rankings

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6,717
World Rank
United States
3,084
Country Rank
University of California Santa Barbara Logo
13
University
Ranking Based On Selection:
13
Leda Cosmides
University of California Santa Barbara Santa Barbara, United States
Social Sciences / Psychology
evolutionary psychology | cognitive psychology | evolutionary biology | evolutionary approaches to the social science

Citation Metrics

  • Total
    72,367
  • Last 5 Years
    13,479
  • Last 5 Years / Total
    0.186
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* Total Citation Counts Rankings

Rankings

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7,130
World Rank
United States
3,280
Country Rank
University of California Santa Barbara Logo
14
University
Ranking Based On Selection:
14
John Tooby
University of California Santa Barbara Santa Barbara, United States
Social Sciences / Anthropology
evolutionary psychology | evolutionary biology | evolutionary anthropology | evolutionary approaches to economics | political scien

Citation Metrics

  • Total
    69,779
  • Last 5 Years
    13,253
  • Last 5 Years / Total
    0.190
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* Total Citation Counts Rankings

Rankings

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7,332
World Rank
United States
3,377
Country Rank
University of California Santa Barbara Logo
15
University
Ranking Based On Selection:
15
Michael S Gazzaniga
University of California Santa Barbara Santa Barbara, United States
Social Sciences / Psychology
Cognitive Neuroscienc

Citation Metrics

  • Total
    68,504
  • Last 5 Years
    9,127
  • Last 5 Years / Total
    0.133
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* Total Citation Counts Rankings

Rankings

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7,623
World Rank
United States
3,520
Country Rank
University of California Santa Barbara Logo
16
University
Ranking Based On Selection:
16
Bernard Comrie
University of California Santa Barbara Santa Barbara, United States
Social Sciences / Linguistics and Literature
linguistic typology | Caucasian languages | Papuan languages | historical linguistics | language documentatio

Citation Metrics

  • Total
    67,116
  • Last 5 Years
    12,390
  • Last 5 Years / Total
    0.185
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* Total Citation Counts Rankings

Rankings

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7,765
World Rank
United States
3,581
Country Rank
University of California Santa Barbara Logo
17
University
Ranking Based On Selection:
17
Petar Kokotovic
University of California Santa Barbara Santa Barbara, United States
Engineering & Technology / Electrical & Electronic Engineering
Control theory and application

Citation Metrics

  • Total
    65,987
  • Last 5 Years
    9,125
  • Last 5 Years / Total
    0.138
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* Total Citation Counts Rankings

Rankings

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7,844
World Rank
United States
3,621
Country Rank
University of California Santa Barbara Logo
18
University
Ranking Based On Selection:
18
David Gross
University of California Santa Barbara Santa Barbara, United States
Natural Sciences / Physics

Citation Metrics

  • Total
    65,592
  • Last 5 Years
    9,603
  • Last 5 Years / Total
    0.146
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* Total Citation Counts Rankings

Rankings

flag
8,034
World Rank
United States
3,700
Country Rank
University of California Santa Barbara Logo
19
University
Ranking Based On Selection:
19
Glenn H Fredrickson
University of California Santa Barbara Santa Barbara, United States
Engineering & Technology / Metallurgical & Materials Engineering
polymer physics | statistical mechanics | soft materials | computational field theor

Citation Metrics

  • Total
    64,604
  • Last 5 Years
    13,332
  • Last 5 Years / Total
    0.206
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* Total Citation Counts Rankings

Rankings

flag
8,283
World Rank
United States
3,816
Country Rank
University of California Santa Barbara Logo
20
University
Ranking Based On Selection:
20
Brenda Major
University of California Santa Barbara Santa Barbara, United States
Social Sciences / Psychology
fairness | diversity | stigma | resilience | coping with stres

Citation Metrics

  • Total
    63,392
  • Last 5 Years
    16,176
  • Last 5 Years / Total
    0.255
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* Total Citation Counts Rankings

Rankings

flag
8,640
World Rank
United States
3,993
Country Rank
University of California Santa Barbara Logo
21
University
Ranking Based On Selection:
21
Elizabeth Belding
University of California Santa Barbara Santa Barbara, United States
Engineering & Technology / Electrical & Electronic Engineering
mobile networking | wireless networks | ICT4

Citation Metrics

  • Total
    61,728
  • Last 5 Years
    5,718
  • Last 5 Years / Total
    0.093
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* Total Citation Counts Rankings

Rankings

flag
8,977
World Rank
United States
4,158
Country Rank
University of California Santa Barbara Logo
22
University
Ranking Based On Selection:
22
Kenneth S Kosik
University of California Santa Barbara Santa Barbara, United States
Others
kosik@lifesci.ucsb.ed

Citation Metrics

  • Total
    60,241
  • Last 5 Years
    13,676
  • Last 5 Years / Total
    0.227
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* Total Citation Counts Rankings

Rankings

flag
9,267
World Rank
United States
4,295
Country Rank
University of California Santa Barbara Logo
23
University
Ranking Based On Selection:
23
Scott Grafton
University of California Santa Barbara Santa Barbara, United States
Medical and Health Sciences / Neuroscience
Neuroscience of Goal Oriented Behavior | Learning | Action | Functional Reorganizatio

Citation Metrics

  • Total
    59,070
  • Last 5 Years
    12,504
  • Last 5 Years / Total
    0.212
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* Total Citation Counts Rankings

Rankings

flag
9,345
World Rank
United States
4,338
Country Rank
University of California Santa Barbara Logo
24
University
Ranking Based On Selection:
24
Matthew Pa Fisher
University of California Santa Barbara Santa Barbara, United States
Natural Sciences / Physics
physic

Citation Metrics

  • Total
    58,806
  • Last 5 Years
    13,184
  • Last 5 Years / Total
    0.224
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* Total Citation Counts Rankings

Rankings

flag
9,605
World Rank
United States
4,434
Country Rank
University of California Santa Barbara Logo
25
University
Ranking Based On Selection:
25
Joshua P Schimel
University of California Santa Barbara Santa Barbara, United States
Agriculture & Forestry / Soil Sciences and Plant Nutrition
soil science | ecology | arctic science | microbial ecolog

Citation Metrics

  • Total
    57,814
  • Last 5 Years
    22,904
  • Last 5 Years / Total
    0.396
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