スピントロニクス - 工学系研究科 - 東京大学授業カタログ

スピントロニクス

Spintronics

“Spintronics” is a field that aims to create future innovative electronics, information technology, and quantum information science and technology through the development of materials, devices, and systems that actively utilize not only the charge of electrons but also their spin degree of freedom.
With the rapid progress of recent research, spintronics is increasingly integrated with closely related fields such as quantum science and technology, thereby contributing to the development of new information technologies. A wide range of research and development activities, from fundamental studies to practical applications, are currently advancing.
This course is intended for beginners. It will introduce spintronics starting from the basics and extending to selected topics at the research frontier.

MIMA Search

授業計画

1. Fundamentals of Magnetism Magnetic moments of atoms: orbital and spin angular momentum Diamagnetism and paramagnetism: Langevin theory of paramagnetism and Curie’s law Ferromagnetism: Weiss theory of ferromagnetic order and the Curie–Weiss law Band structure of ferromagnetic materials Ferrimagnetism and antiferromagnetism Various magnetic materials 2. Spintronics Based on Metallic Ferromagnets Giant magnetoresistance (GMR) Tunnel magnetoresistance (TMR) Spin-injection-induced magnetization reversal; spin-transfer torque; spin–orbit torque Devices based on GMR and TMR 3. Semiconductor-based Spintronics Spin injection, transport, and detection Semiconductor (Si) spintronic devices 4. Spin waves and Magnonics Collective dynamics of magnetic moments Devices based on spin waves and magnonics 5. Spin-orbit interactions and device applications Spin-orbit interactions (SOI): Rashba and Dresselhaus SOI Spin Hall effect 6. Basic concept of the Berry phase/curvature/connection for understanding (spin) Hall effects Berry curvature and connection Hall effect in a two-dimensional system Chern number Spin Berry curvature and spin Hall effect 7. Ferromagnetic semiconductors Crystal growth, physics and device applications of Ferromagnetic Semiconductors 8. Superconductor Spintronics Superconductor/Ferromagnet heterostructures Spin-triplet superconductivity