PHYSICAL PROPERTIES PHOTOCHEMISTRY
RYOUTARO YOSHIMI LAB.
INTRODUCTION OF LABORATORY
In our laboratory, we synthesize high-quality thin film samples using molecular beam epitaxy, and explore functional quantum responses such as energy-dissipationless quantum transport and spintronics properties that manipulate magnetized spins with electric currents on surfaces and interfaces. In particular, we focus on topological quantum materials, such as topological insulators, Weyl semimetals and Rashba semiconductors, which exhibit characteristic band and/or spin structures due to crystal symmetry and band inversion. In sample synthesis, we control the chemical composition of materials, construct hetero-interfaces by stacking different materials, and develop and design samples using various methods to realize and elucidate new physical phenomena.
量子ホール効果におけるエネルギー散逸のないエッジ状態の模式図
強磁性ラシュバ半導体（Ge,Mn）Teの結晶構造
分子線エピタキシー法によって作成した試料写真
電流誘起磁化反転の模式図
MESSAGE
THE THRILL OF BEING A RESEARCHER IS BEING ABLE TO INVESTIGATETOPICS OF INTEREST AT ONE’S OWN DISCRETION.
IT’S PRECISELY BECAUSE THE THEMES ARE CHALLENGING AND REQUIREA BATTLE WITH THE WORLD THAT I FELT COMPELLED TO TAKE THEM ON.
As a child, I enjoyed crafting and art. In junior high and high school, I joined the geoscience club and collected rare stones and fossils outdoors. It was fun to discover things like shark teeth and quartz.
My research topic, topological insulators, has been a focus since my senior year in college. It was a truly novel area of study at the time, with intense research and competition worldwide. It was a challenging endeavor, with the potential for great success if results were achieved, but nothing if someone else beat you to it. This motivated me to take on the challenge. As a result, I was able to achieve good results, which have led me to where I am today. It’s not just about working alone; it’s about consulting with others, trying repeatedly, and focusing on experiments over and over again. Sometimes, by paying attention to the sudden feeling that “something is off” and observing it, you can find areas for improvement.
keyword
Physical properties experiments / Quantum transport / Transport properties / Topological crystal insulators / Rashba system / Magnetic semiconductors / Multiferroics / Rashba effect / Anomalous Hall effect / Spintronics / Current-induced magnetization reversal / Ferromagnetic / Rashba semiconductors
PROFILE : Associate Professor Ryoutaro Yoshimi
2011 B.Eng., in Dept. of Applied Physics, University of Tokyo
2016 Ph.D(Eng.), in Dept. of Applied Physics, University of Tokyo
2016-2019 Special Postdoctoral Researcher, Center for Emergent Matter Science, RIKEN
2020-2024 Research Scientist, Center for Emergent Matter Science, RIKEN
2024 Associate Professor, Dept. of Advanced Materials Science, University of Tokyo
APPLIED PHYSICS
Researchers fighting the world.
RYOUTARO yoshimi Lab.,
Department Of Advanced Materials Science,
Graduate School of Frontier Sciences,
The University of Tokyo
Kashiwanoha 5-1-5,
Kashiwa,Chiba 277-8561, Japan
+81-4-7136-3752
r-yoshimi@edu.k.u-tokyo.ac.jp
The Goal of Applied Physics
The goal of Applied Physics is to develop a stage = “new material” that can manipulate undeveloped degrees of freedom, to explore unknown phenomena created from that stage and to bring out excellent functions, and to bring out its excellent functions. The purpose is to contribute to the development of human society by elucidating the mechanisms and developing application fields for these phenomena and functions.
AMS (Advanced Materials Science)
Department Office
AMS (Advanced Materials Science),
Graduate School of Frontier Sciences,
The University of Tokyo
Kashiwanoha 5-1-5, Kashiwa, Chiba 277-8561, Japan
Email : ams-office(at)ams.k.u-tokyo.ac.jp
Please change (at) to @.