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Condensed Matter Physics Lab
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A condensed matter physics lab that experimentally explores quantum phenomena emerging at extremely low temperatures.
AboutAbout the lab
Exploring quantum properties of matter through experiments
The lab conducts experimental research on the quantum properties of matter.
It investigates new physical phenomena arising from orbital degrees of freedom, as well as the electrical transport properties of nanosized metal wires.
It also studies quantum phenomena exhibited by hydrogen absorbed in metals.
Developing the experimental equipment needed for its research in-house is another important theme.
Key terms
- Orbital degree of freedom
- The degree of freedom concerning which of several orbitals with equal energy an electron occupies.
- Antiferroquadrupolar order
- A state in which quadrupole moments are aligned in alternating directions. It corresponds to antiferromagnetic order in magnetic materials.
- 3He insert
- A component built into a SQUID magnetometer that enables high-precision magnetization measurements at extremely low temperatures.
NewsLab news
Paper published in J. Appl. Phys. and also selected as a Featured Article
Paper on superconductivity in palladium hydride published in J. Phys. Soc. Jpn
Paper on the electronic states of yttrium hydride selected as an Editor's Pick in Low Temp. Phys.
Paper on the electronic states of Ce-based heavy-fermion materials published in Low Temp. Phys.
Review on point-contact spectroscopy published in Kotai Butsuri (Solid State Physics), with part of the research results featured on the cover
ResearchResearch themes
The lab experimentally explores the diversity of phenomena produced by quantum many-body effects and the common properties that emerge in extreme environments. Targeting strongly correlated materials, nanosized metal wires, and hydrogen absorbed in metals, among others, it investigates quantum phenomena that appear at extremely low temperatures.
*Illustrative imageNew Physical Phenomena Arising from Orbital Degrees of Freedom
The lab investigates what is observed when orbital order does not occur down to absolute zero even though orbital degrees of freedom remain. It replaces part of the Pr in PrPb3, which shows antiferroquadrupolar order, with La and measures its properties at extremely low temperatures.
*Illustrative imageElectrical Conduction in Nanosized Wires
The lab studies electron correlation phenomena that appear when metals are made nanosized. It developed an apparatus that can precisely vary wire thickness from bulk down to atomic size, and showed that the apparatus can detect a transition from nonmagnetic Pd to ferromagnetism.
*Illustrative imageDevelopment of Experimental Equipment
In this theme, the lab carries out everything from design and fabrication to testing of the equipment its research requires, and it regards the theme as highly educational as well. A 3He insert built into the SQUID magnetometer now enables high-precision magnetization measurements at extremely low temperatures.
*Illustrative imageQuantum Phenomena of Hydrogen in Metals
Hydrogen is light and shows strong quantum behavior. The lab studies its absorption into and diffusion through metals by quantum tunneling, and the changes in electronic states that accompany absorption, covering topics such as the superconducting transition of Pd.
MembersFaculty
The lab's members consist of faculty, faculty who also hold positions at Kochi University, and doctoral, master's, and undergraduate students.As of 2026
- Associate ProfessorTatsuya Kawae
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: “Dr Gaines with Dilution Refrigerator” Wolfgang$318 / CC BY-SA 4.0 (cropped)
- New Physical Phenomena Arising from Orbital Degrees of Freedom: “Gold Cryostat 8K-4” Onri Jay Benally / CC BY-SA 2.0 (cropped)
- Electrical Conduction in Nanosized Wires: “TEM of silicon nanowire ( )” National Institute of Standards and Technology / Public domain (cropped)
- Development of Experimental Equipment: “Laboratory vacuum distillation apparatus on a benchtop” KiveVictor / CC BY 4.0 (cropped)
- Quantum Phenomena of Hydrogen in Metals: “Metal Hydride Storage Canisters” Anjujo / CC BY-SA 4.0 (cropped)
- Related lab (量子計算科学研究室): “Chladni plate 18” Exhibit made by Estes Objethos Atelier, photo by Rodrigo Tetsuo Argenton / CC BY-SA 4.0 (cropped)
- Related lab (エネルギー創生材料学研究室): “Nuclear Fuel Cycle” No machine-readable author provided. Tungsten assumed (based on copyright claims). / Public domain (cropped)
- Related lab (量子線物性工学研究室): “JEOL JEM-200A transmission electron microscope -05” High Contrast / CC BY 3.0 de (cropped)
- Related lab (量子線物理計測研究室): “Radiation Assessment Detector for Mars Science Laboratory” NASA/JPL-Caltech/SwRI / Public domain (cropped)
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