| |
| 題目 |
配列ナノ空間を利用した物質科学---基礎理学とその応用 |
| 講師 |
谷垣勝己 教授
東北大学大学院理学研究科物理学専攻
電子物理学講座 ナノネットワーク固体物理研究室
|
| 日時 |
平成20年11月13日 16：30 - 17:30 |
| 場所 |
理学部1号館 第11講義室 |
| 要旨 |
Recent progresses in nano cluster materials have resulted in a surge of
interests . We are currently studying nano size materials
comprised from IV^th -group elements of C, Si, Ge and Sn, for achieving
new insights to fundamental understanding in
physical/chemical phenomena and properties, as well as for development
of advanced electronic device materials.
Crystals built up from these building blocks show an extremely small
amount of dangling bonds reflecting the advantages
of the bottom-up materials engineering. The crystals thus formulated
generally show semiconducting properties and intriguing
electronic properties can be expected by both chemical and physical
carrier doping. The constructed cluster-network
crystals have architectural structure and consequently various
modifications are possible. Along this concept, a various
network materials can be created using the standard
elements on the earth with rich natural abundance.
Phonons ranging from intra-cluster to lattice vibrations play an
important role for controlling electronic and thermal
properties that cannot be realized by the conventional materials
comprised of atoms. Itinerant electron/hole carries spreading over
the cluster-network give rise to conduction carriers, and endohedral
atomic elements and molecules produce unconventional phonons
with anharmonic oscillations. The interplay among conduction-electrons,
magnetic-electrons and exotic phonons produces novel electronic
properties that have not ever been observed in the conventional
materials. Explore novel materials using these new concepts of
materials science towards this future dream will be discussed.
|
| 世話人 |
大嶋 孝吉 （内線：7827） |
|
![岡山大学理学部物理学科
[大学院自然科学研究科・数理物理学科専攻・先端基礎科学専攻]](../../images/p_subtitle.jpg)
