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Electron Spin Physics and Engineering Lab
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The lab studies spintronics, which combines semiconductors and magnetic materials.
AboutAbout the lab
One step further, beyond semiconductors
The Electron Spin Physics and Engineering Lab conducts research on spintronics at the Faculty of Information Science and Electrical Engineering, Kyushu University.
Spintronics is an interdisciplinary field of magnetics and electronics, and it is applied in hard disk drives and magnetic random access memory.
The lab aims to create new spintronic devices by combining semiconductors and magnetic materials.
Its research is built on three pillars: magnetic garnet physics and engineering, semiconductor spintronics, and spin caloritronics.
Key terms
- Spintronics
- An interdisciplinary field of magnetics and electronics. It is applied in HDDs and magnetic memory (MRAM).
- Spin current
- A flow of the spin angular momentum of electrons. It is a flow carried by spin, distinct from a flow of charge.
- Magnetic garnet
- An insulating ferrimagnetic material that carries magnetic information even though it does not conduct electricity.
- Spin caloritronics
- An academic field that elucidates the interaction between thermoelectric properties and spin angular momentum.
NewsLab news
Paper co-authored with Chalmers University of Technology published in APL Materials
Paper on current-induced magnetization switching in a sputter-deposited magnetic insulator published in npj Spintronics
The Electron Spin Physics and Engineering Lab was established
ResearchResearch themes
The lab pursues future devices that look even further ahead than the spin devices that advance semiconductors. Using new spintronic materials, it explores the fundamental science of generating, transporting, and detecting spin currents, with the aim of advancing spin devices.
*Illustrative imageMagnetic garnet physics and engineering
The lab works with magnetic garnets, insulating magnetic materials that carry magnetic information even though they do not conduct electricity. It covers everything from crystal growth to interface design, and investigates how close these materials can come to enabling low-power magnetic memory.
*Illustrative imageSemiconductor spintronics
Silicon is a semiconductor that can transport spin currents at room temperature. The lab tackles the problem of high resistance at the interface with ferromagnets by redesigning electrode materials and interface fabrication methods, aiming for semiconductor devices that carry information in spin.
*Illustrative imageSpin caloritronics
Where there is a temperature difference, not only a flow of charge but also a flow of spin arises. The lab experimentally verifies how heat generates spin currents inside semiconductors, and aims to clarify the physics that determines their efficiency.
MembersFaculty
The members of the Electron Spin Physics and Engineering Lab are faculty members and PhD, master's, and undergraduate students.As of 2026
- Associate ProfessorNaoto Yamashita
- Assistant ProfessorGarima Vasisht
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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: “Crystal Forest 2025” FrancescoSaverioDi / CC BY 4.0 (cropped)
- Magnetic garnet physics and engineering: “Almandine garnet 2” James St. John / CC BY 2.0 (cropped)
- Semiconductor spintronics: “Magnetic Semiconductor ( )” National Institute of Standards and Technology / Public domain (cropped)
- Spin caloritronics: “Т-200, Т-201 термоэлектрические преобразователи, Микропровод Кишинёв 1979 (02)” 155LA3 / CC BY 4.0 (cropped)
- Related lab (High Performance Computing Lab): “IBM Blue Gene P supercomputer” Argonne National Laboratory's Flickr page / CC BY-SA 2.0 (cropped)
- Related lab (Spintronics Device Lab): “Spin-Torque MRAM ( )” Steve Jurvetson from Los Altos, USA / CC BY 2.0 (cropped)
- Related lab (Quantum Device Engineering Lab): “Gold Cryostat 8K-4” Onri Jay Benally / CC BY-SA 2.0 (cropped)
- Related lab (Inorganic Materials × Deep-UV Laser Process Lab): “Metal Oxide TFT Cross Section” NoAppliedVoltage / CC BY-SA 4.0 (cropped)
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