| Project/Area Number |
07405039
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (A)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
工業物理化学
|
|---|
| Research Institution | KYOTO UNIVERSITY |
|---|
Principal Investigator |
YAMABE Tokio Kyoto Univ.Mol.Eng.Professor, 工学研究科, 教授 (80025965)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
YOSHIZAWA Kazunari Kyoto Univ.Mol.Eng.Assoc.Prof., 工学研究科, 助教授 (30273486)
MISAKI Yohji Kyoto Univ.Mol.Eng.Assoc.Professor, 工学研究科, 助教授 (90202340)
TANAKA Kazuyosi Kyoto Univ.Mol.Eng.Professor, 工学研究科, 教授 (90155119)
御崎 洋二 京都大学, 工学研究科, 助手 (40135463)
|
|---|
| Project Period (FY) |
1995 – 1997
|
| Project Status |
Completed (Fiscal Year 1997)
|
| Budget Amount *help |
¥34,600,000 (Direct Cost: ¥34,600,000)
Fiscal Year 1997: ¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1996: ¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 1995: ¥27,400,000 (Direct Cost: ¥27,400,000)
|
|---|
| Keywords | Nanoelectronics / Carbon nanotubes / Molecular solenoid / Peierls transition / Superconductive transition / Electron spin resonance |
|---|
| Research Abstract |
In this study, we have carried out characteristics of carbon- and nitrogen-substituted nanotubes. Results of this study (19995-1997) are described below.
(1)Although carbon nanotubes and polyacenes are theoretically expected to exhibit metallic properties, there is always a possibility of metal-insulator transition widely observed in one-dimensional systems. Thus, we predicted the electronic properties of carbon nanotubes and polyphenanthrenes. As a result we showed that there is a close correlation between the crystal orbitals near the Fermi level and the metallic properties.
(2)We purified using a heat-treatment method carbon nanotubes, and conducted electron spin resonance and SQUID measurements. Carbon nanotubes are shown to exhibit metallic properties just like graphite from these measurements.
|
