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Okazaki Lab
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A condensed matter physics lab that studies the electrical and thermal transport and energy conversion properties of materials.
AboutAbout the lab
Pursuing the physics of functional properties of matter.
The Okazaki Lab studies how materials conduct electricity and heat, and their properties related to energy conversion (functional properties).
The lab investigates the unusual electronic properties of strongly correlated electron systems such as oxides, organic salts, and rare-earth compounds.
It also studies how electric current flows when light is shone on a material or when a strong electric field is applied, exploring the nonequilibrium properties of electrons.
The lab is a condensed matter physics lab at Tokyo University of Science, established in 2015.
Key terms
- Strongly correlated electron systems
- Material systems in which strong repulsion between electrons plays a major role. Electric current may flow less easily in them.
- Transverse response
- A response that arises in a direction perpendicular to an applied external field. The Hall effect and the Nernst effect are examples.
- Seebeck effect
- A phenomenon in which a voltage proportional to the temperature difference arises when a temperature difference is applied to a material.
- Chiral
- A property of crystal structures that is likened to the relationship between a right hand and a left hand.
NewsLab news
A doctoral student received an Outstanding Presentation Award at the Academic Conference of the Thermoelectrics Society of Japan
A master's student received the FY2025 Dean's Award of the Graduate School of Science and Technology
A paper on transverse thermoelectric effects in MoSi2 was published in Commun. Mater.
A paper on Sn-substituted Ca3Co4O9 was published in Phys. Rev. Mater.
A master's student received the FY2024 Dean's Award of the Faculty of Science and Technology
ResearchResearch themes
The Okazaki Lab conducts fundamental research on electrical and thermal transport phenomena in materials and on properties related to energy conversion (functional properties). By understanding emergent transport phenomena and pursuing the universal laws underlying them, the lab hopes to propose design guidelines for new functional materials.
*Illustrative imageExploring and Applying Transverse Responses in Materials
Responses that arise in a direction perpendicular to an applied external field, as in the Hall effect and the Nernst effect, are called transverse responses. The lab searches for materials that produce giant transverse responses, clarifies their origins, and develops applications.
*Illustrative imageSearch for Compounds with Chiral Crystal Structures
Compounds with chiral crystal structures show unusual electronic states and magnetism that reflect their symmetry. The lab explores new materials, grows single crystals, and investigates transport properties. This theme is led mainly by Assistant Professor Sato (now at Saitama University).
*Illustrative imageAnomalous Conduction in Molecular Organic Conductors
Molecular conductors made of organic molecules show characteristic physical phenomena owing to their unusual internal degrees of freedom and low dimensionality. The lab investigates anomalous conduction phenomena using thermal and electrical transport measurements and optical measurements.
*Illustrative imageThermoelectric Transport in Transition Metal Oxides
The phenomenon in which a voltage proportional to the temperature difference arises when a temperature difference is applied to a material is called the Seebeck effect. The lab studies unusual Seebeck effects in transition metal oxides that originate from multiple degrees of freedom.
MembersFaculty
- Ryuji Okazaki
- Shogo Yoshida
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Peltier-element” Lateiner at German Wikipedia / CC BY-SA 3.0 (cropped)
- Exploring and Applying Transverse Responses in Materials: “Orbion Hall Effect Thruster” Blervis / CC BY 4.0 (cropped)
- Search for Compounds with Chiral Crystal Structures: “Bi-crystal” Alchemist-hp (www.pse-mendelejew.de) + Richard Bartz with focus stack. / CC BY-SA 3.0 (cropped)
- Anomalous Conduction in Molecular Organic Conductors: “Robert Tenent ( )” ENERGY.GOV / Public domain (cropped)
- Thermoelectric Transport in Transition Metal Oxides: “NIO defect surface” Dmurra01 / CC BY-SA 3.0 (cropped)
- Related lab (田村研究室): “Organic crystal 2” RemiJos / CC BY 4.0 (cropped)
- Related lab (福元研究室): “Pastilla superconductora sobre vía de imanes” Esmeralda Lizet Martínez Piñeiro / CC BY 3.0 (cropped)
- Related lab (金井研究室): “RGB LED 5mm” Mister rf / CC BY-SA 4.0 (cropped)
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