the opto-electrical properties of antiferroelectricity liquid crystal

• Main Authors: Wen-Bin Shu, 徐文斌
• Other Authors: Chih-Yu Chao
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/39937379824827893007

碩士 === 國立中央大學 === 物理研究所 === 90 === We use DRLM to observe the free-standing thin film by applied electric field in the chisso-4001 material.the data show us: 1.layer spacing=44.8Å,no=1.57. 2.Sm-CA* films with an odd number of layers possess transverse ferroelectricity,films with an even number of layers exhibit longitudinal ferroelectricity. 3.Using rotating electric field in the film,ring pattern form from edge to center. 4.Using reverse rotating electric field in the film,ring pattern disappear from center to edge. 5.Elastic constant equal to 15.9 erg/cm。