2012 Fiscal Year Final Research Report
Orientational fluctuations of nematic liquid crystals under shear flow
| Project/Area Number |
22540416
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Biophysics/Chemical physics
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
ORIHARA Hiroshi 北海道大学, 大学院・工学研究院, 教授 (30177307)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
NAGAYA Tomoyuki 大分大学, 工学部, 教授 (00228058)
NA Yang Ho 北海道大学, 大学院・工学研究院, 助教 (00421991)
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Keywords | 非平衡ゆらぎ / せん断流 / 液晶 / コロイド / 応答関数 / 異常拡散 / レオロジー |
|---|
| Research Abstract |
We have investigated the nonequilibrium steady state fluctuations of sheared colloids and nematic liquid crystals. Anomalous dispersion giving rise to a cubic term with respect to time in the mean-square distance has been experimentally observed in sheared colloids for the first time. The stress response of a liquid crystal to ac electric fields was measured under shear flow. As a result, anomaly characteristic to nonequilibrium steady state was observed, which was clarified to originate from the nonconservative forces caused by the shear flow.
|
