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Researcher · Saitama University · Japan

Sadayoshi Koiwai

Sadayoshi Koiwai publishes mostly in Electronic, Optical and Magnetic Materials, Condensed Matter Physics and Materials Chemistry, on topics such as Rare-earth and actinide compounds, Magnetic and transport properties of perovskites and related materials and Magnetic Properties of Alloys.

OpenAlex
World rank
#6,759,039
of 7,710,434 ranked researchers
Rank in Japan
#285,083
of 383,136
Works
15
Citations
167
Citations per work
11.1
h-index
6
i10-index 5Top 90% in Electronic, Optical and Magnetic Materials
Sadayoshi Koiwai

What does Sadayoshi Koiwai research?

Sadayoshi Koiwai's work is mostly in Materials Science (49%), Physics and Astronomy (38%), Engineering (4%).

Physical Sciences: 14 works · 95.5% of their workMaterials Science: 7 works · 48.9% of their workElectronic, Optical and Magnetic Materials: 6 works · 42.2% of their workMaterials Chemistry: 1 works · 6.7% of their workPhysics and Astronomy: 6 works · 37.8% of their workCondensed Matter Physics: 6 works · 37.8% of their workEngineering: 1 works · 4.4% of their workMechanical Engineering: 1 works · 4.4% of their workChemistry: 0 works · 2.2% of their workInorganic Chemistry: 0 works · 2.2% of their workEarth and Planetary Sciences: 0 works · 2.2% of their workGeology: 0 works · 2.2% of their workEverything else: 1 works · 4.5% of their workTHEIR WORKSadayoshi Koiwai15works
Physical Sciences96%

Their six largest subfields, inside their fields and domains; the grey slice is everything else they publish. The interactive view splits every one of their works down to single topics.

The fields and subfields, with their numbers
    1. Materials Science748.9%
    2. Physics and Astronomy637.8%
    3. Engineering14.4%
    4. Chemistry02.2%
    5. Earth and Planetary Sciences02.2%
  2. Everything else14.5%
  1. 1Electronic, Optical and Magnetic Materials42% of their works
  2. 2Condensed Matter Physics38% of their works
  3. 3Materials Chemistry7% of their works
  4. 4Mechanical Engineering4% of their works
  5. 5Inorganic Chemistry2% of their works
  6. 6Geology2% of their works

Research topics

Which keywords describe Sadayoshi Koiwai's research?

The keywords of their largest research topics: Superconductivity, Electronic Structure, Heavy Fermion, Quantum Criticality, Magnetocaloric Materials, Perovskites, High-Temperature and Iron-Based.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most.

All 19 words, with their numbers
  1. Superconductivity203 topics
  2. Electronic Structure132 topics
  3. Heavy Fermion111 topic
  4. Quantum Criticality111 topic
  5. Magnetocaloric Materials71 topic
  6. Perovskites71 topic
  7. High-Temperature61 topic
  8. Iron-Based61 topic
  9. Permanent Magnets61 topic
  10. Rare-Earth61 topic
  11. Crystal Structure32 topics
  12. Cuprate Superconductors31 topic
  13. Frustrated Magnets31 topic
  14. High-Temperature Superconductivity31 topic
  15. Quantum Spin Liquids31 topic
  16. Protonic Conduction21 topic
  17. Solid Acids21 topic
  18. Inorganic Clusters11 topic
  19. Oxynitride Perovskites11 topic

Where does Sadayoshi Koiwai work?

Sadayoshi Koiwai's main affiliation in the publication record is Saitama University, Japan.

How many publications and citations does Sadayoshi Koiwai have?

OpenAlex counts 15 works and 167 citations for Sadayoshi Koiwai, an h-index of 6, ranking #6,759,039 of 7,710,434 researchers worldwide on the quality score.

Ranked on field-normalised excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Papers, co-authors, who cited this work and researchers on the nearest topics have tabs of their own, above. Is this your page? Claim it with your ORCID iD, or request a correction or removal.

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