Quantum Materials Field
Quantum Material Properties Group
We study electronic properties of superconductors and topological materials experimentally as well as theoretically.
Group Leader: Taichi Terashima
Control of electronic properties of strongly correlated electron systems by uniaxial compression and tension
Current Topics
The highlight of our research in FY2024 is the control of the electronic properties of molecular conductors by applying uniaxial strain using a piezoelectric-based apparatus [1]. This device has recently been extensively used for inorganic materials. In this study, we have developed a method of embedding samples in epoxy resin so that this technique can be applied to molecular conductors, which are small and fragile single crystals. This method successfully controls the electronic state from a metallic to a charge-ordered state.
Fig. 1. Top plate of the 20-Tesla superconducting magnet and dilution refrigerator system, whose base temperature is 0.04 K.
Outline of Research
The property of materials is controlled by electrons and thus it is crucial to gain the microscopic understanding of the electronic property of each material. Our major targets are topological materials and correlated electron systems including high-temperature superconductors, aiming to contribute to development of quantum materials. We employ various techniques such as low-temperature high-magnetic-field measurements, transport measurements, magneto-optical imaging of quantum vortices, Compton scattering, many-body theory, and numerical simulation
Fig. 2. Schematic illustration of a piezoelectric-based strain cell.
References
- T. Konoike et al., in preparation.
Group members
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Taichi Terashima・Group Leader -
Masanori Kohno・Chief Researcher -
Hiroyuki Yamase・Principal Researcher -
Minoru Tachiki・Principal Researcher -
Takashi Mochiku・Principal Researcher -
Shuuichi Ooi・Senior Researcher -
Takako Konoike・Senior Researcher
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