2013 Fiscal Year Final Research Report
Study of dynamic spin systems using the terahertz FT-ESR excited by optical pulses
| Project/Area Number |
23340103
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Condensed matter physics II
|
|---|
| Research Institution | Kobe University |
|---|
Principal Investigator |
KOHMOTO Toshiro 神戸大学, 理学(系)研究科(研究院), 准教授 (70192573)
|
|---|
| Research Collaborator |
MORIYASU Takeshi 神戸大学, 理学研究科, 学術研究員
|
|---|
| Project Period (FY) |
2011-04-01 – 2014-03-31
|
| Keywords | 光物性 / 磁気共鳴 / レーザー |
|---|
| Research Abstract |
We developed a terahertz Fourier-transform electron-spin-resonance (FT-ESR) spectrometer system using a terahertz pulse source generated by femtosecond optical pulses, ultraviolet pulse laser, and a temperature-controlled refrigerator. Broad bandwidth and high intensity of the terahertz source are achieved by using the optical pulse compression in a hollow fiber and the Cherenkov-type optical rectification. We applied it to study the ultrafast dynamics of the spins and excitons in transition-metal complex, semiconductors, and antiferromagnets.
|
