论文标题
在压缩杆状的基于压缩杆状的纳米胶样中连续的各向同性纽马透过过渡
Continuous Isotropic-Nematic transition in compressed rod-like based nanocolloid
论文作者
论文摘要
Landau -de Gennes平均场模型预测了各向同性 - 列过渡的不连续过渡，与单轴和四极阶参数相关。该报告显示了与BATIO3纳米颗粒的杆状戊基酰苯基苯基（5CB）及其纳米胶体的压力相关的介电研究。介电常数的扫描显示在压缩纳米胶体中连续的I-N转变，其中量很少（x = 0.1％）。对于5CB及其X = 1％纳米胶体中的列相，检测到介电常数的巨大值和弯曲型的远程前训练前行为。还检测到在各向同性阶段对离子相关的介电介电常数的贡献，还检测到了预科前波动的“塑形”影响。对于高频松弛域，对主要的放松时间和转化与对等方向的去耦进行了测试。
Landau - de Gennes mean field model predicts the discontinuous transition for the Isotropic - Nematic transition, associated with uniaxial and quadrupolar order parameter in three dimensions. This report shows pressure-related dielectric studies for rod-like nematogenic pentylcyanobiphenyl (5CB) and its nanocolloids with BaTiO3 nanoparticles. The scan of dielectric constant revealed the continuous I-N transition in a compressed nanocolloid with a tiny amount of nanoparticles (x=0.1%). For the nematic phase in 5CB and its x=1% nanocolloid the enormous values of dielectric constant and the bending-type long-range pretransitional behavior were detected. The 'shaping' influence of pretransitional fluctuations was also detected for the ionic-related contribution to dielectric permittivity in the isotropic phase. For the high-frequency relaxation domain, this impact was tested for the primary relaxation time and the translational-orientaional decoupling.
