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Spintronics Lab
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The lab uses both the charge and the spin of electrons to pursue low-power electronics.
AboutAbout the lab
High-performance, low-power electronics.
The lab studies spintronics, which makes simultaneous use of the electron's charge (its electrical property) and spin (its magnetic property).
It aims to clarify the new physical phenomena that arise this way, and to contribute to high-performance, low-power electronics and information processing and communication.
Research proceeds mainly in five areas, which are closely interrelated.
The Fukami Lab works jointly with the Ikeda Lab and the Åkerman Lab.
Key terms
- Spin
- The magnetic property of an electron. Along with charge, its electrical property, it is one of the two properties of an electron.
- MRAM
- Spintronic memory that stores digital information in a non-volatile way (the information is retained even when power is turned off).
- Spin-orbit torque
- A force that changes the direction of a magnet through a flow of spins generated by an electric current. It is used to control magnetization.
- Probabilistic bit (p-bit)
- A bit that fluctuates stochastically between 0 and 1. It is a building block of probabilistic computers.
NewsLab news
A review paper by Professor Fukami and colleagues has been published in Science Advances
A doctoral student received the English Presentation Award at the JSAP Spring Meeting
A paper co-authored with the Czech Academy of Sciences and others has been published in Physical Review Materials
A review paper on probabilistic computers by Professor Fukami and colleagues has been published in NEWTON
A paper co-authored with the University of Lorraine has been published in APL Materials
ResearchResearch themes
Through research on spintronics, the lab aims to clarify new physical phenomena that emerge when charge and spin are used simultaneously, and to contribute to high-performance, low-power electronics and information processing and communication. Research proceeds mainly in five areas, which are closely interrelated.
*Illustrative imageSpintronic Memory for Energy-Efficient Semiconductors
To make semiconductors more energy-efficient, the lab develops spintronic memory (MRAM), which stores digital information in a non-volatile way. It works on improving the performance of MRAM based on spin-transfer torque, and on developing materials for controlling magnetization with spin-orbit torque and voltage.
*Illustrative imageNew-Principle Computers That Use Stochasticity
Using probabilistic bits (p-bits), which fluctuate stochastically between 0 and 1, and analog bits, which take continuous values between 0 and 1, the lab works on proof-of-principle demonstrations of probabilistic computing and brain-inspired computing. It develops devices that actively exploit the thermal fluctuations of magnetization and nanoscale magnetic structures.
*Illustrative imageExploring Quantum Materials and Quantum Spin Properties
For applications in quantum computing, sensing, and communication, the lab searches for color centers in a variety of host materials, including new materials other than diamond. It has succeeded in discovering new spin defects in oxide spinels and in clarifying scaling laws that predict quantum performance, and it is also pursuing joint research with institutions such as the University of Chicago.
*Illustrative imageNovel Spintronics Physics and Materials Development
The lab works on exploring new spintronics physics, observing new phenomena, and developing the materials in which they appear. It has demonstrated "chiral spin rotation" and "room-temperature control of the quantum metric" in noncollinear antiferromagnets, and is advancing the formation and functional exploration of unusual spin structures such as magnetic skyrmions.
MembersFaculty
The lab's members include faculty, project researchers, academic researchers, JSPS Research Fellows, visiting researchers, doctoral, master's, and undergraduate students, research students, research support staff, and administrative assistants. Faculty from other units, such as the Frontier Research Institute for Interdisciplinary Sciences, also take part.As of 2026
- ProfessorShunsuke Fukami
- Associate ProfessorShun Kanai
- Associate ProfessorYuta Yamane
- Associate ProfessorJiahao Han
- Assistant ProfessorK. Vihanga De Zoysa
- Assistant ProfessorMin-Gu Kang
- Assistant ProfessorAakanksha Sud
- Assistant ProfessorMiina Amanda Tuomontytär Leiviskä
- Project Assistant ProfessorNuno Cacoilo
- Project Assistant ProfessorYukihiro Marui
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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: “NXP PCF8577C LCD driver with I²C (Colour Corrected)” cole8888, https://flickr.com/photos/ @N05/ (aka Cole L) / CC BY-SA 2.0 (cropped)
- Spintronic Memory for Energy-Efficient Semiconductors: “VERSAbus memory card.agr” ArnoldReinhold / CC BY-SA 3.0 (cropped)
- New-Principle Computers That Use Stochasticity: “DARPA SyNAPSE 16 Chip Board” DARPA SyNAPSE / Public domain (cropped)
- Exploring Quantum Materials and Quantum Spin Properties: “Nitrogen-vacancy center” NIST / Public domain (cropped)
- Novel Spintronics Physics and Materials Development: “Magnetic viewing film” Zureks / CC BY-SA 4.0 (cropped)
- Related lab (Nano Spin Memory [Ikeda] Lab): “Semiconductor clean room” Aileen Devlin/Jefferson Lab from Newport News, USA / Public domain (cropped)
- Related lab (Next-Generation Spin Electronics Materials Engineering [Tsunoda] Lab): “Actuator arm assembly of a hard disk drive” Mk2010 / CC BY 4.0 (cropped)
- Related lab (Green Power Electronics [Endoh (T.)] Lab): “Wafer scale integrated circuit on 300 mm wafer” Wikideas1 / CC0 (cropped)
- Related lab (Advanced Spintronics Medical Application Engineering Joint Research Lab): “Hall sensor square van der Pauw Geometry” Panoga / CC BY-SA 4.0 (cropped)
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