2018 Fiscal Year Final Research Report
Microscopic studies of the valleytronics materials by polarized ESR spectroscopy
| Project/Area Number |
16K04882
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Nanostructural physics
|
|---|
| Research Institution | Institute of Physical and Chemical Research |
|---|
Principal Investigator |
Oshima Yugo 国立研究開発法人理化学研究所, 開拓研究本部, 専任研究員 (10375107)
|
|---|
| Research Collaborator |
TAKENOBU TAISHI
|
|---|
| Project Period (FY) |
2016-04-01 – 2019-03-31
|
| Keywords | 単層遷移金属ダイカルコゲナイド / 電子スピン共鳴 |
|---|
| Outline of Final Research Achievements |
The purposes of this project were to built a novel ESR system using wire grid polarizers for millimeter/sub-millimeter waves, and to measure the ESR of the monolayer transition metal dichalcogenides for clarifying its microscopic information such as the g-value or the spin-orbit interaction. Although we have succeeded to develop the ESR system using wire grid polarizers, the sensitivity was not sufficient to observe the ESR of the monolayer transition metal dichalcogenides.
|
| Free Research Field |
低温強磁場物性
|
| Academic Significance and Societal Importance of the Research Achievements |
今回、ミリ波・サブミリ波に適したワイヤーグリッド偏光子をレザー微細加工法により初めて作製したが、従来の手法で作製したワイヤーグリッド偏光子と遜色のない性能を持つものが作製できるという事がわかった。また、ワイヤーグリッド偏光子を利用した電子スピン共鳴装置を新たに開発した事によって、従来型の共振器を使った電子スピン共鳴装置に比べ若干感度が上がった。今後、導波路をコルゲート導波管に変更すれば、さらなる感度の向上が期待できる。
|
