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Miyazaki-Hayashi Lab
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The lab explores crystal structures to find materials that convert wasted heat into electricity.
AboutAbout the lab
Turning everyday heat into a new source of energy
The Miyazaki-Hayashi Lab develops thermoelectric materials, which generate electricity from heat that is otherwise wasted all around us.
The key to developing thermoelectric materials is the crystal structure, which describes how the elements in a material are arranged.
The lab analyzes crystal structures with high precision through diffraction experiments using X-rays, synchrotron X-rays, and neutron beams, and uses the results to develop new thermoelectric materials.
Besides thermoelectric materials, the lab also develops superconductors, ion battery materials, solar cell materials, and dielectrics.
Key terms
- Thermoelectric materials
- Materials that generate electricity from heat. The aim is to make use of heat that is wasted all around us
- Crystal structure
- The arrangement of the elements in a material. It helps in understanding the thermal and electrical properties of the material
- Synchrotron radiation
- X-rays obtained at research facilities such as SPring-8. They are used in diffraction measurements to investigate crystal structures
NewsLab news
A doctoral student and a professor won a Poster Prize at ECT26
A student received the Presentation Encouragement Award from the Tohoku Branch of the Japan Society of Applied Physics
A student won an Outstanding Poster Prize at ICT2024
ResearchResearch themes
The lab develops thermoelectric materials, which generate electricity from heat that is otherwise wasted all around us, based on crystal structure analysis. For superconductors, ion battery materials, solar cell materials, and dielectrics as well as thermoelectric materials, the lab carries out sample synthesis, crystal structure analysis, property measurement, and calculations.
*Illustrative imageDevelopment of thermoelectric materials
Aiming at energy savings and a low-carbon society, the lab works toward thermoelectric materials that have high power generation capability, are inexpensive, and do not use toxic elements. It also investigates the crystal structures and thermoelectric performance of Higher Manganese Silicide (HMS), Mg2Si, and Mg2Sn.
*Illustrative imageCrystal structure analysis with X-rays and neutron beams
Through diffraction experiments using X-rays, synchrotron X-rays, and neutron beams, the lab analyzes crystal structures with high precision from angles different from conventional approaches. Besides the lab's own powder and single-crystal X-ray diffractometers, it sometimes takes measurements at facilities such as SPring-8.
MembersFaculty
The members of the Miyazaki-Hayashi Lab are faculty members, researchers, international researchers, technical assistants, administrative assistants, visiting project professors, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorYuzuru Miyazaki
- Associate ProfessorKei Hayashi
- Assistant ProfessorZhicheng Huang
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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: “Close-up of the crystal mounted on a Hilger and Watts Y290 diffractometer” Prof. David J. Watkin / CC BY-SA 4.0 (cropped)
- Development of thermoelectric materials: “Multi-Mission Radioisotope Thermoelectric Generator for Curiosity” Kim Shiflett / Public domain (cropped)
- Crystal structure analysis with X-rays and neutron beams: “XYZ stage powder diffraction of solid sample” Warrenmck / CC BY-SA 4.0 (cropped)
- Related lab (Yamashita-Kato Lab): “Measuring a qubit leaves no room for error” FMNLab / CC BY 4.0 (cropped)
- Related lab (Photonic Device Engineering Lab): “Military laser experiment” US Air Force / Public domain (cropped)
- Related lab (Awaji Lab): “Superconducting magnet. The effect of a constant magnetic field” Hzofia74 / CC BY 4.0 (cropped)
- Related lab (Tsuchiura Lab): “Superconducting levitation and candle on a magnet” Julien Bobroff (user:Jubobroff), Frederic Bouquet (user:Fbouquet), LPS, Orsay, France / CC BY-SA 3.0 (cropped)
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