INTRODUCTION OF LABORATORY

Multiferroics, a class of functional materials, are defined as materials in which multiple order parameters such as ferromagnetic, ferroelectric, and ferroelasitic orders coexist and couple each other. We aim to explore new types of mutiferroic couplings and orders such as magnetic toroidal, magnetic quadrupole, and chiral orders, which lead to unconventional control of electronic properties in materials, and hopefully which will be used for future electronic devices. To achieve these purposes, we proceed with domestic and intimate collaborations with scientists having various experimental and theoretical techniques, and expand our targets into various materials which no one focused on in terms of multiferroic research.

TSUYOSHI KIMURA LAB. research

 

育成した希土類金属化合物の単結晶試料

TSUYOSHI KIMURA LAB. research

 

開発した高圧下強誘電特性測定用セル。セル中の試料の配置図とその写真。

TSUYOSHI KIMURA LAB. research

 

特殊なX線を使って明らかになったらせん状に配列した電気四極子を起源とする鏡像構造

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SEE THINGS FROM A DIFFERENT ASPECT. DON'T BE AFRAID OF MAKING A MISTAKE. AFTER MUCH TRIAL AND ERROR, YOU WILL REACH UNEXPECTED NEW FINDINGS.

One of our main research topics is the study on "multiferroics": a class of functional materials showing unusual couplings between magnetism and electricity. In the 20th century, such materials were quite rare. When I participated in the American Physical Society meeting in 2001, I firstly heard the term "multiferroics". There, several theorists explained why there are so few multiferroics in nature. Since I am an experimentalist, I decided to experimentally demolish the theoretical negative suggestion, and jumped in the research field. To develop new functional materials, sometimes go against common sense and don't be afraid of making a mistake. After much trial and error, you will reach unexpected new findings.

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