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Metal Phase Science Lab
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The lab searches for new crystal “phases” to expand the possibilities of materials.
AboutAbout the lab
Creating compounds no one has ever seen.
The Metal Phase Science Lab aims to pioneer new compounds that no one has ever seen by understanding and controlling the “phases” of various compounds.
The lab investigates phase transitions induced by temperature and pressure using state-of-the-art measurement techniques and theoretical calculations, exploring new “phases” and the properties that accompany them.
It aims to understand the mechanisms behind the diverse behaviors of materials and to apply this understanding to new design guidelines for energy materials and functional materials.
Key terms
- Phase transition
- A phenomenon in which the structure or properties of a material change dramatically with a change in temperature or pressure
- Mixed-anion compound
- A compound containing multiple types of anions, such as hydrogen, nitrogen, and fluorine, in addition to oxygen
- Perovskite
- A family of compounds with a crystal structure of a specific atomic arrangement. Many functional materials take this form
NewsLab news
Assistant Professor Ogawa and a student received the Outstanding Presentation Award at the international conference ICC'11
A paper on cation coordination toward designing the stacking of layered perovskites was published in J. Am. Chem. Soc.
A paper on modeling a two-step oxidation process using time-resolved X-ray diffraction and Bayesian inference was published in J. Phys. Chem. C
A paper on a transition-metal-ordered perovskite with a fivefold superstructure along the [111] direction was published in Inorg. Chem.
ResearchResearch themes
Targeting inorganic compounds containing metal elements, the lab explores and develops materials with new structures and properties through new synthesis methods and crystal structure analysis.
*Illustrative imageMixed-anion compounds
Introducing anion vacancies into oxides, or replacing oxygen with hydrogen, nitrogen, fluorine, and other anions, greatly broadens the variety of metal coordination structures. The lab explores the design of new materials that make use of the distinct character of each anion.
*Illustrative imageControl of anion vacancies in perovskites
The perovskite structure is tolerant of oxygen deficiency. By freely controlling anion vacancies, the lab aims to create new materials (new structures) and tune their properties.
*Illustrative imageOrganic–inorganic hybrid compounds
Extending the concept of mixed anions, the lab uses organic cations and anions such as thiocyanate, which have rarely been used until now, aiming to create families of materials with functions that cannot be obtained from inorganic substances.
*Illustrative imageStructures and properties under high pressure
The lab has clarified structural phase transitions in materials whose structures stack rock-salt-type and square-planar-coordinated blocks, the unusual spin transitions of square-planar iron oxides, and the properties that hydrides show under high pressure.
MembersFaculty
The members of the Metal Phase Science Lab consist of faculty, international postdoctoral fellows, support staff, doctoral and master's students, and fourth-year undergraduate students.As of 2026
- ProfessorTakafumi Yamamoto
- Assistant ProfessorChishiro Michioka
- Assistant ProfessorKanta Ogawa
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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: “Researcher using diamond anvil cell” Allison Pease, University of Michigan, USA / CC BY-SA 2.5 (cropped)
- Mixed-anion compounds: “Kappa-carbide structure (perovskite)” Robert Rauschen / CC BY-SA 4.0 (cropped)
- Control of anion vacancies in perovskites: “Perovskite” Cadmium at English Wikipedia / Public domain (cropped)
- Organic–inorganic hybrid compounds: “MOF scandium open framework material Mowat” John Patrick Stephen Mowat / CC BY-SA 3.0 (cropped)
- Structures and properties under high pressure: “Diamond anvil cell schematic” José A. Flores-Livas, Lilia Boeri, Antonio Sanna, Gianni Profeta, Ryotaro Arita, Mikhail Eremets / CC BY 4.0 (cropped)
- Related lab (Quantum Materials Lab): “Jeffrey Lynn team ( )” National Institute of Standards and Technology / Public domain (cropped)
- Related lab (Solid-State Properties Chemistry Lab): “Proton conduction superionic ice” Goran tek-en / CC BY-SA 4.0 (cropped)
- Related lab (Elementary Particle Theory Lab): “String-interaction” Anna.g / CC BY-SA 3.0 (cropped)
- Related lab (Molecular Materials Lab): “The sample of BEDT-TTF” 四月朔日朔良 / CC BY 4.0 (cropped)
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