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Integrated Magnetic Devices Lab
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A lab exploring new information devices and recording technologies using magnetic materials.
AboutAbout the lab
Exploring new information technologies from the properties of magnetic materials.
The Integrated Magnetic Devices Lab researches new information devices that use magnetic materials, as well as technologies for recording information.
The lab aims to realize devices that use spin waves, which are collective motions of electron spins, for information transmission and logic operations, and studies them through both theory and experiment.
It also works on research into a new magnetic recording technology that uses microwaves, and on developing a high-speed simulator that calculates the motion of magnetic materials.
On the lab's website, it is introduced under the name "Electronic Devices Lab."
Key terms
- Spin wave
- A collective motion that occurs when a microwave magnetic field is applied to the electron spins in a ferromagnet
- Microwave-assisted magnetic recording
- A new magnetic recording technology that uses the synergistic effect of microwaves on the order of tens of GHz and the magnetic field of the write head
- Micromagnetic simulator
- Software that reproduces, through computer calculation, the dynamic behavior of the magnetization of magnetic materials
ResearchResearch themes
The lab deals with the electron spins and magnetization dynamics of ferromagnets, and researches new information devices and magnetic recording technologies. It pursues research through both theory and experiment, as well as research using simulation and the development of simulators.
*Illustrative imageHigh-Frequency Magnetic Devices Using Spin Waves
The lab studies, through both theory and experiment, new devices that use spin waves for information transmission and logic operations. Because transmission does not involve the movement of charge, among other features, extremely low power consumption and parallel operation performance are expected.
*Illustrative imageCalculations for Microwave-Assisted Magnetic Recording
To increase the recording density of hard disks and reduce the energy needed for recording, the lab develops a new magnetic recording technology that uses the synergistic effect of microwaves on the order of tens of GHz and the magnetic field of the write head, and investigates it through simulation.
*Illustrative imageUltra-High-Speed Micromagnetic Simulator
Because calculating the motion of magnetization takes a long time, the lab develops an ultra-high-speed micromagnetic simulator using GPUs. It is also working on software-side ways to shorten computation time, such as parallel-in-time computation methods.
MembersFaculty
The members of the Integrated Magnetic Devices Lab consist of faculty members and master's and undergraduate students.As of 2026
- Associate ProfessorTerumitsu Tanaka
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: “MTJ with Waveguide Electrodes & Contacting GSG Probe for Testing” OJB Quantum / CC BY 4.0 (cropped)
- High-Frequency Magnetic Devices Using Spin Waves: “High Frequency Alternator” Popski / CC BY-SA 3.0 (cropped)
- Calculations for Microwave-Assisted Magnetic Recording: “Seagate ST33232A hard disk inner view” Eric Gaba (Sting - fr:Sting) This image was created with CombineZP by 11 ( It was created out of 11 single images.). / CC BY-SA 3.0 (cropped)
- Ultra-High-Speed Micromagnetic Simulator: “Groß und klein” Friedrich Haag / CC BY-SA 4.0 (cropped)
- Related lab (Electron Spin Physics and Engineering Lab): “Magnetic Semiconductor ( )” National Institute of Standards and Technology / Public domain (cropped)
- Related lab (Spintronics Device Lab): “IZOT 0004С Disk Pack Side View” Mister rf / CC BY-SA 4.0 (cropped)
- Related lab (Bio-Inspired Microsystems Lab): “Epson micro flying robot - Flickr - yuhui” yuhui from Singapore, Singapore / CC BY-SA 2.0 (cropped)
- Related lab (Quantum Device Engineering Lab): “DoubleQuantumDot” Vitaly Golovach / Public domain (cropped)
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