QUANTUM PHYSICAL PROPERTIES
SATORU NAKATSUJI LAB.
INTRODUCTION OF LABORATORY
The condensed matter physics is considered one of the most versatile subfields of physics, embracing big ideas from particle physics, cosmology, and quantum information. Recently, the concept of topology has brought up a new era in condensed matter research that integrates a diverse spectrum of fields and topics, bridging basic science with technological innovations. Thus, it is critical to push beyond the traditional disciplines to establish new conceptual framework and to target at the significant problems. Our research activities focus on designing and synthesizing new materials with emergent quantum properties that have never been seen before, then exploring the physics and functionalities of such properties with our world-leading measurement facilities. Our goal is to lead the innovative quest for new quantum materials that bear a far-reaching impact not only on basic science but also on our everyday life in the future.
a. Hall voltage vs. write current Iwrite for the Mn3Sn/ Pt, Cu, W bilayer devices. b. Illustration of the multi-valued memory device. The multi-valued Hall voltage is achieved by changing the lower limit of the write current, . c. Spin-orbit torque switching realized in Mn3Sn. [Nature 580 , 608 (2020)]
a. Crystal structure of Fe3X (X = Ga, Al). b. Temperature dependence of the anomalous Nernst effect. c. The nodal web in momentum space. [Nature 581 , 53 (2020)]
研究室の扉 「トポロジーがつくる巨大な磁気熱電物質」 （東京大学理学系研究科・理学部）
MESSAGE
NEW MATERIALS RESEARCH LEADS TO THE DISCOVERY OF NEW PHENOMENA. BY LEARNING THE STATE OF ART TECHNIQUES OF BOTH SYNTHESIS AND LOW TEMPERATURE MEASUREMENTS, YOU MAY DISCOVER YOUR OWN MATERIAL, WHICH SHOWS NEW FUNCTIONS, PAVING A PATH FOR NEW TECHNOLOGY.
The discovery of new phenomena is at the forefront of research in condensed matter physics. This is particularly true for the inorganic materials, which provide an important basis in current electronic and information technology. They have been central subjects of basic research because quantum correlations among the Avogadro numbers of electrons lead to exotic macroscopic phenomena such as superconductivity, quantum Hall effect, and quantum criticality. Thus, the search for new materials that exhibit new characteristics is one of the most exciting and important projects in the materials research. We have synthesized new materials in so-called strongly correlated electron systems including transition metal compounds and heavy fermion intermetallic compounds. Our interest lies in macroscopic quantum phenomena such as novel quantum criticality, exotic superconductivity and quantum spin liquid in magnetic semiconductors.
keyword
Spin liquid / Anomalous Hall effect / Quantum critical phenomenon / Geometric frustration / Weyl semimetal / Topology / Valency fluctuation / Superconductivity / Spin glass / Mott transition / topology / spintronics / antiferromagnetism / Magneto-optical Kerr effect / Anomalous Nernst Effects / Frustrating magnetism / Luttinger semimetals / Quantum spin ice / Anomalous metals / Orbital fluctuations / Spin ice / Heavy electrons / Heavy electron systems / Non-Fermi liquids / Pyrochlore lattice / Spin chirality / Orbital order / Geometric frustration /nonvolatile memory / TMR / antiferromagnets / Magnetic Weyl Semimetal / Kagome Lattice / Nodal line / Anomalous Nernst Effect / Nodal Line / electrons / Strongly correlated / Superconductivity / Multipolar Kondo effect / Quantum criticality / Non-Fermi-liquids / Strongly correlation / effect / Hall / spin / spin Hall effect /Metal-insulator transition / Spin-orbit interaction / Iridium oxide / Topological quantum phase / Transition metal oxide / Weyl magnetism / Electromagnetic effect / Quantum phase transition / Piezomagnetic effect / Spin-orbit torque / Current writing / Magnetism Memory / Weyl magnets / Hall effect / Weyl metals / antiferromagnetism / strongly correlated electron systems / antiferromagnets / multipole Kondo system / valence fluctuation system / cluster multipole / localized multipole system / superconductivity / multipolarity Polar Kondo effect / Localized multipole / J-Physics / Valency fluctuation / Multipole order / Heavy electron system superconductivity / Quantum spin-orbit liquid /Heavy electronic superconductivity / spin-orbital liquid / valence fluctuation / superconducting transition / triangular lattice antiferromagnetic material / chiral spin liquid / Fermi liquid / magnetic phase transition / superconducting transition / orbital / quantum liquid / oxide / Kondo lattice / Pyrochlore / Two-dimensional triangular lattice / Triangular lattice / Two-dimensional magnetism / Chirality / Multiband system / Quantum conduction phenomenon / Hopping conduction / Pyrochlore oxide / Mott insulator / Metamagnetic transition / Quantum critical point
PROFILE : Professor Satoru Nakatsuji
1996 Graduated, Department of Metal Science, Faculty of Engineering, Kyoto University
1998-2001 Research Fellow for Young Scientist of Japan Society for the Promotion of Science, Kyoto University, Department of Physics
2001 Doctor of Science from Kyoto University
2001 Postdoctoral Research Fellow of Japan Society for the Promotion of Science, National High Magnetic Field Laboratory, Tallahasee, Florida U.S.A.
2001-2003 Postdoctoral Research Fellow for Research Abroad of Japan Society for the Promotion of Science, National High Magnetic Field Laboratory, Tallahasee, Florida U.S.A.
2003 Lecturer, Faculty of Science, Kyoto University
2006 Associate Professor, Institute for Solid State Physics,The University of Tokyo
2016 Professor, Institute for Solid State Physics,The University of Tokyo
STUDENT VOICE : AKITO SAKAI
Hi! We are enjoying experiments such as crystal growth, and low temperature measurement. In our lab, you will perform cutting-edge research by using a wide variety of instruments and techniques from the beginning, so there are many chances to make a great discovery! You will work together with our members, consisting of professional rese archers, experienced senior students, and also a number of our collaborators visiting us from around the world. Y ou will learn experimental techniques and research methods through your own study. If you want to join the world’s leading research, please come to our Lab!
SOLID STATE PHYSICS AND CHEMISTRY
We aim to elucidate new physical properties and the physical laws behind them.
Satoru Nakatsuji Lab.,
Department Of Advanced Materials Science,
Graduate School of Frontier Sciences,
The University of Tokyo
Kashiwanoha 5-1-5,
Kashiwa,Chiba 277-8561, Japan
+81-4-7136-3240
satoru@issp.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 @.