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Research facility · Ljubljana · Slovenia

Jožef Stefan Institute

In research, Jožef Stefan Institute stands highest in Physical Sciences (#960 of 12,888 worldwide), Materials Science (#547 of 2,468 worldwide) and Engineering (#1,516 of 6,636 worldwide), 2022–2025. Relative to its size it is most specialised in Radiation, Nuclear and High Energy Physics and Condensed Matter Physics — Radiation is 13.6× its share of world research.

ijs.si/ijswROR OpenAlex
World rank, 2022–2025
#1,487
of 28,054 · #1,001 all time
Rank in Slovenia
#2
of 51
Research works
12k
▲ 3% vs 2013–17
Citations
271k
21.7 per fractional work
Top-10% rate
17.2%
record average 16.5%
Open access
35%
world 28%

What is Jožef Stefan Institute known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #960 of 12,888 16.1%1,280 #713
Materials ScienceField #547 of 2,468 13.8%242 #415
EngineeringField #1,516 of 6,636 14.7%422 #1097
Physics and AstronomyField #461 of 1,646 25.0%183 #402
Life SciencesDomain #3,395 of 7,800 18.5%136 #3406
Materials ChemistrySubfield #745 of 1,556 14.4%138 #422
Computer ScienceField #2,365 of 4,667 18.0%198 #1030
Biochemistry, Genetics and Molecular BiologyField #1,924 of 3,579 19.2%80 #1888
Social SciencesDomain #5,795 of 10,521 28.3%101 #6736
Health SciencesDomain #6,638 of 11,982 17.9%139 #5040

Each strip is that field’s whole ranked pool, with the notch where Jožef Stefan Institute sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Physical Sciences#713 #960
  2. Materials Science#415 #547
  3. Engineering#1,097 #1,516
  4. Physics and Astronomy#402 #461
  5. Life Sciences#3,406 #3,395
  6. Materials Chemistry#422 #745
  7. Computer Science#1,030 #2,365
  8. Biochemistry, Genetics and Molecular Biology#1,888 #1,924
  9. Social Sciences#6,736 #5,795
  10. Health Sciences#5,040 #6,638
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does Jožef Stefan Institute specialise in?

Where its research is concentrated relative to its size: Radiation takes 13.6× the share of its output that it takes of world research.

  1. RadiationSubfield · 30.9 works14×
  2. Nuclear and High Energy PhysicsSubfield · 49.9 works9.6×
  3. Condensed Matter PhysicsSubfield · 23.2 works8.7×
  4. Electronic, Optical and Magnetic MaterialsSubfield · 53.5 works7.1×
  5. Inorganic ChemistrySubfield · 25.2 works6.1×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.37× its world share, 29 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.91× its world share, 80 worksBiochemistry, Geneti…Immunology and Microbiology: 0.41× its world share, 7 worksImmunology and Micro…Neuroscience: 0.51× its world share, 14 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.08× its world share, 6 worksPharmacology, Toxico…Chemical Engineering: 2.18× its world share, 13 worksChemical EngineeringChemistry: 2.91× its world share, 76 worksChemistryComputer Science: 1.54× its world share, 198 worksComputer ScienceEarth and Planetary Sciences: 1.04× its world share, 27 worksEarth and Planetary …Energy: 2.01× its world share, 31 worksEnergyEngineering: 1.70× its world share, 422 worksEngineeringEnvironmental Science: 1.01× its world share, 83 worksEnvironmental ScienceMaterials Science: 4.19× its world share, 242 worksMaterials ScienceMathematics: 0.29× its world share, 6 worksMathematicsPhysics and Astronomy: 4.97× its world share, 183 worksPhysics and AstronomyDentistry: 0.86× its world share, 7 worksDentistryHealth Professions: 0.34× its world share, 15 worksHealth ProfessionsMedicine: 0.35× its world share, 112 worksMedicineNursing: 0.43× its world share, 4 worksNursingVeterinary: 0.87× its world share, 2 worksVeterinaryArts and Humanities: 0.31× its world share, 15 worksArts and HumanitiesBusiness, Management and Accounting: 0.20× its world share, 10 worksBusiness, Management…Decision Sciences: 1.14× its world share, 18 worksDecision SciencesEconomics, Econometrics and Finance: 0.33× its world share, 12 worksEconomics, Econometr…Psychology: 0.28× its world share, 14 worksPsychologySocial Sciences: 0.15× its world share, 32 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Physics and Astronomy, 5.0×. Every wedge is a field page.

Who are the top researchers at Jožef Stefan Institute?

Ranked on the composite score, Andrej Trkov, Boris Turk and D. Žontar lead among researchers whose main affiliation is Jožef Stefan Institute.

  1. 1 Andrej Trkov Slovenia · #26,174 worldwide 568 citations · 46 works
  2. 2 Boris Turk Slovenia · #36,449 worldwide 1.1k citations · 53 works
  3. 3 D. Žontar Slovenia · #39,797 worldwide 430 citations · 53 works
  4. 4 Vito Türk Slovenia · #64,514 worldwide 487 citations · 72 works
  5. 5 Nenad Tomašev Slovenia · #70,431 worldwide 495 citations · 27 works
  6. 6 Jure Zupan Slovenia · #92,718 worldwide 444 citations · 52 works
  7. 7 Maja Remškar Slovenia · #99,712 worldwide 284 citations · 44 works
  8. 8 M. Zavrtanik Slovenia · #104,494 worldwide 292 citations · 25 works
  9. 9 Ingrid Milošev Slovenia · #108,401 worldwide 328 citations · 47 works
  10. 10 Gašper Žerovnik Slovenia · #115,488 worldwide 524 citations · 21 works
All ranked researchers at Jožef Stefan Institute

Which keywords describe research at Jožef Stefan Institute?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Biomedical Applications, Nanoparticles, Deep Learning, Nanocomposites, Nanomaterials, Machine Learning, Neural Networks and Nanostructures.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Deep Learning88▲ 1.56×69 topics
  2. Biomedical Applications71▲ 3.6×34 topics
  3. Machine Learning68▲ 1.26×71 topics
  4. Nanoparticles67▲ 3.2×37 topics
  5. Neural Networks50▲ 1.96×28 topics
  6. Nanomaterials48▲ 2.8×17 topics
  7. Nanocomposites47▲ 3.5×19 topics
  8. Graphene31▲ 2.7×11 topics
  9. Nanostructures30▲ 4.6×16 topics
  10. Mechanical Properties30▲ 1.86×28 topics
  11. Catalysis28▲ 2.5×24 topics
  12. Toxicity26▲ 3.7×15 topics
  13. Health Effects26▲ 2.6×20 topics
  14. Biosensors24▲ 2.9×12 topics
  15. Raman Spectroscopy24▲ 7.4×6 topics
  16. Evolutionary Algorithms24▲ 13×4 topics
  17. Colloidal Crystals22▲ 29×2 topics
  18. Particle Swarm Optimization22▲ 11×4 topics
  19. Water Splitting21▲ 3.5×4 topics
  20. Thin Films21▲ 6.6×10 topics
  21. Crystal Growth21▲ 4.5×11 topics
  22. Nanostructured Materials20▲ 7.3×4 topics
  23. Data Analysis20▲ 4.3×7 topics
  24. Tomography19▲ 6.3×4 topics
  25. Superconductivity18▲ 6.3×9 topics
  26. Quantum Computing17▲ 9.8×4 topics
  27. Ferroelectric Materials17▲ 25×1 topic
  28. Lead-free Piezoceramics17▲ 25×1 topic
  29. Room Temperature17▲ 6.3×3 topics
  30. Self-Organization16▲ 34×2 topics
  31. Dark Matter16▲ 8.5×4 topics
  32. Liquid Crystals16▲ 61×1 topic
  33. Photoinduced Motions16▲ 61×1 topic
  34. Bioinspired Materials15▲ 9.2×3 topics
  35. Multiobjective Optimization15▲ 17×2 topics
  36. Particle Physics15▲ 12×2 topics
  37. Photon Counting15▲ 13×3 topics
  38. Small-Angle Scattering15▲ 16×2 topics
  39. CMOS Technology14▲ 11×5 topics
  40. Neutron Activation Analysis14▲ 24×1 topic

Which research topics does Jožef Stefan Institute publish most on?

By volume in 2022–2025: Ferroelectric and Piezoelectric Materials, Liquid Crystal Research Advancements, Nuclear Physics and Applications and Particle physics theoretical and experimental studies.

Ferroelectric and Piezoe…17Ferroelectric and Piezoelectric Materials: 17 fractional worksLiquid Crystal Research …16Liquid Crystal Research Advancements: 16 fractional worksNuclear Physics and Applications: 14 fractional worksParticle physics theoretical and experimental studies: 12 fractional worksNuclear reactor physics and engineering: 12 fractional worksParticle Detector Development and Performance: 11 fractional worksRobot Manipulation and Learning: 10 fractional worksNatural Language Process…10Natural Language Processing Techniques: 10 fractional worksAdvanced Multi-Objective Optimization Algorithms: 10 fractional worksRadiation Detection and Scintillator Technologies: 10 fractional works
Materials ChemistryElectronic, Optical and Magnetic MaterialsRadiationNuclear and High Energy Physics4 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Ferroelectric and Piezoelectric Materials Materials Chemistry 17 works
  2. 2 Liquid Crystal Research Advancements Electronic, Optical and Magnetic Materials 16 works
  3. 3 Nuclear Physics and Applications Radiation 14 works
  4. 4 Particle physics theoretical and experimental studies Nuclear and High Energy Physics 12 works
  5. 5 Nuclear reactor physics and engineering Aerospace Engineering 12 works
  6. 6 Particle Detector Development and Performance Nuclear and High Energy Physics 11 works
  7. 7 Robot Manipulation and Learning Control and Systems Engineering 10 works
  8. 8 Natural Language Processing Techniques Artificial Intelligence 10 works
  9. 9 Advanced Multi-Objective Optimization Algorithms Computational Theory and Mathematics 10 works
  10. 10 Radiation Detection and Scintillator Technologies Radiation 10 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available34.7%not open65.3%

World: 28% of research is openly available.

with international co-authors34.2%domestic only65.8%

World: 19% is written across borders.

How has Jožef Stefan Institute's research output changed?

Output in 2018–2022 was 3% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Ljubljana

All research institutions in Ljubljana

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.