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Search for Novel Spintronic Devices and Theoretical Study of the Energy Spectrum of Low-dimensional Electron Gas
Toward power-saving devices
We use condensed matter theory to study materials and structures called topological insulators and skyrmions of which the topology dominates the phenomena. At the same time, we are studying to propose and realize novel spin devices using these topological insulators and skyrmions in the process.
Research
We are proposing spin devices that exceed the current mainstream CMOS devices in terms of performance and power, and are analyzing their performance using condensed matter theory. The main objective of this research is to create power-saving devices that provide superior performance to CMOS devices. To calculate the performance of novel spin devices, quantum field theory and relativity are used to calculate the spin conductivity and other properties. Currently, we are studying topological insulators and skyrmions. Topological insulators are bulk insulators, but spontaneous spin currents flow only on their surfaces. If successfully applied to devices, topological insulators make it possible to fabricate ultra-low power devices because the topological insulator itself is non-dissipative. Skyrmions are also a peculiar vortex generated in magnetic materials, and are expected to play the role of a switch by driving a current.
Kenji Kondo Associate Professor
