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Spin Functional Materials Science Lab
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A lab that investigates functions produced by special magnetic and crystal structures in magnetic materials.
AboutAbout the lab
Exploring innovative functions of magnetic materials.
The Spin Functional Materials Science Lab investigates the functions produced by special magnetic and crystal structures in magnetic materials, as well as the materials that exhibit those functions.
In magnetic materials, when spins show a special arrangement or the crystal structure has a special symmetry, more nontrivial phenomena and advanced functions can appear.
For example, a magnetic material with a helical magnetic structure, in which spins rotate within a plane, becomes a ferroelectric in which electric dipoles are aligned.
On the lab's website, it is presented under the name "Onose Lab."
Key terms
- Helical magnetic structure
- A magnetic structure in which spins are arranged so that they rotate within a plane
- Ferroelectrics
- A material in which electric dipoles are aligned. In some cases, a magnetic material with a helical magnetic structure becomes a ferroelectric
- Skyrmions
- A magnetic structure in which spins are arranged in a vortex. Electrons feel an effective magnetic field and spontaneously exhibit the Hall effect
- Magnons
- One of the electrically neutral elementary excitations that, along with phonons, carry heat flow
NewsLab news
Paper on the direct observation, using neutron beams, of chirality control in a helimagnetic metal published in PNAS
Paper on domain wall motion in a helimagnet published in Phys. Rev. Research
A lecturer received the Tokin Foundation Encouragement Award from the Tokin Science and Technology Promotion Foundation
Paper on nonreciprocal electrical conduction in a helimagnet published in Phys. Rev. Research
Paper on the discovery of sliding phenomena in a helimagnet published in Phys. Rev. Lett.
ResearchResearch themes
The lab investigates the functions produced by special magnetic and crystal structures in magnetic materials, and the materials that exhibit such functions. For example, in a skyrmion, a magnetic structure in which spins are arranged in a vortex, electrons feel an effective magnetic field because of topological effects, which causes a spontaneous Hall effect.
*Illustrative imageBulk Single Crystals and Microfabrication
While interest is growing in properties that can only be studied after making thin-film devices, the lab explores similar properties by miniaturizing bulk single crystals with a focused ion beam and fabricating fine electrode patterns on their surfaces.
*Illustrative imageExploring Emergent Thermal Transport Phenomena
Heat is also carried by electrically neutral elementary excitations such as phonons and magnons. The lab aims to measure thermal transport phenomena precisely and reveal novel responses involving magnons and phonons.
*Illustrative imageRelativistic Effects in Elementary Excitations Probed by Microwaves
In condensed matter physics, "relativistic effects" arising from spin-orbit interaction are actively studied. The lab precisely measures GHz-band electromagnetic waves (microwaves) to study relativistic effects that appear in elementary excitations such as magnons and phonons.
MembersFaculty
The members of the Onose Lab consist of faculty, postdoctoral researchers (PDs), doctoral and master's students, and administrative staff.As of 2026
- ProfessorYoshinori Onose
- LecturerHidetoshi Masuda
- Assistant ProfessorChong Chen
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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: “Magnetic field bar magnet (top)” Maciej J. Mrowinski / CC BY-SA 4.0 (cropped)
- Bulk Single Crystals and Microfabrication: “XBio illustration – Focused Ion Beam Sem” explorebiology / CC BY 4.0 (cropped)
- Exploring Emergent Thermal Transport Phenomena: “Thermal Conductivity Measurement, Modified Transient Plane Source Technique” JimRocket / CC BY-SA 3.0 (cropped)
- Relativistic Effects in Elementary Excitations Probed by Microwaves: “Anritsu MS2035B portable vector network analyzer” Dtwitkowski / CC BY-SA 3.0 (cropped)
- Related lab (Crystal Structure and Physical Properties Lab): “Shanghai Synchrotron Radiation Facility” Galaxyharrylion / CC BY-SA 3.0 (cropped)
- Related lab (Ultralow-Temperature Quantum Physics Lab): “XLD Pulse-Tube-Type Large Frame Dilution Refrigerator Cryostat” OJB Quantum / CC BY 4.0 (cropped)
- Related lab (Surface Structure and Physical Properties Lab): “Sugar crystals” Masha Milshina / CC BY 4.0 (cropped)
- Related lab (Spin Quantum Properties Lab): “Interior of the Plum Brook Reactor Facility (GRC-1961-C-55851)” NASA Glenn Research Center / Public domain (cropped)
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