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Shimazaki Lab
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The lab explores the quantum properties of electrons in moiré lattices formed by stacking semiconducting two-dimensional materials.
AboutAbout the lab
Condensed matter research on semiconducting two-dimensional materials
The Shimazaki Lab studies the electronic properties, optical responses, and quantum devices of heterostructures made by stacking semiconducting two-dimensional materials.
In particular, it uses two-dimensional materials to design the strongly correlated electronic properties and quantum functionalities that electrons exhibit within moiré lattices, which arise from the interference of crystal lattices.
Through precise electrical control and optical measurements, the lab reveals how these electrons behave.
The lab conducts its research at the Institute for Solid State Physics, the University of Tokyo, and is also concurrently affiliated with the Department of Applied Physics in the Graduate School of Engineering.
Key terms
- Two-dimensional materials
- Materials only a few atoms thick, as thin as a sheet. They can be stacked to build new structures.
- Moiré lattice
- A large-period striped pattern that appears when the lattices of two crystals are stacked with a slight shift.
- Exciton
- A particle-like state formed when an electron and a hole bind together inside a semiconductor that has absorbed light.
NewsLab news
A paper by Assistant Professor Ota et al. was published in Physical Review Materials
A paper by Assistant Professor Ota et al. was published in Applied Physics Letters
ResearchResearch themes
In superlattices with nanoscale periodicity created by moiré interference between the crystal lattices of two-dimensional materials, many quantum properties appear, including strongly correlated electronic states, superconductivity, and magnetism. The lab studies the electronic properties of moiré superlattices in semiconducting two-dimensional materials from two perspectives: macroscopic quantum properties and microscopic quantum device physics.
*Illustrative imageElectrical Control of Moiré Superlattices
The lab precisely controls electrons in semiconductor moiré superlattices by electrical means and explores the quantum properties that emerge there. Treating them as artificial quantum systems in which electrons are arranged in a regular pattern, the lab aims to understand and control their behavior.
*Illustrative imageProbing Electronic Properties with Excitons
The lab uses excitons created by light as probes to examine the state of electrons in moiré superlattices. It is pioneering a new approach to exploring electronic properties using excitons.
*Illustrative imageQuantum Devices from Two-Dimensional Materials
The lab studies moiré superlattices of semiconducting 2D materials from the perspective of microscopic quantum device physics, and works on quantum devices based on two-dimensional materials.
MembersFaculty
The Shimazaki Lab's members include faculty, doctoral and master's students, researchers (ISSP Research Fellows), and secretarial staff.As of 2026
- Associate ProfessorYuya ShimazakiPublications ↗
- Assistant ProfessorTomoharu Ota
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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: “Monolayer TMDC structure” 3113Ian / CC BY-SA 3.0 (cropped)
- Electrical Control of Moiré Superlattices: “HBN-Graphene ( )” Oak Ridge National Laboratory / CC BY 2.0 (cropped)
- Probing Electronic Properties with Excitons: “Exciton” Axelfoley12 / Public domain (cropped)
- Quantum Devices from Two-Dimensional Materials: “Cryostat filled with liquid helium on an optical bench” Alkamid / CC BY-SA 3.0 (cropped)
- Related lab (Takahashi Lab): “OPA produced femtosecond UV laser beam” Abdullahkepceoglu / CC BY-SA 4.0 (cropped)
- Related lab (Ishizaka Lab): “Sample holder in ultrahigh vacuum chamber for angle-resolved photoemission spectroscopy” Ponor / CC BY-SA 4.0 (cropped)
- Related lab (Yoneda Lab): “Dilution Fridge 009 8K” OJB Quantum / CC BY 4.0 (cropped)
- Related lab (Hasegawa Lab): “Printed flexible electronics ( )” Oak Ridge National Laboratory / CC BY 2.0 (cropped)
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