| タイトル | Static and dynamic properties of incommensurate smectic-A(IC) liquid crystals |
| 著者（英） | Lubensky, T. C.; Toner, John; Ramaswamy, Sriram |
| 著者所属（英） | Pennsylvania Univ.|IBM Watson Research Center|Indian Inst. of Science |
| 発行日 | 1988-10-15 |
| 言語 | eng |
| 内容記述 | The elasticity, topological defects, and hydrodynamics of the incommensurate smectic A(IC) phase liquid crystals are studied. The phase is characterized by two colinear mass density waves of incommensurate spatial frequency. The elastic free energy is formulated in terms of a displacement field and a phason field. It is found that the topological defects of the system are dislocations with a nonzero phason field and phason field components. A two-dimensional Burgers lattice for these dislocations is introduced. It is shown that the hydrodynamic modes of the phase include first- and second-sound modes whose direction-dependent velocities are identical to those in ordinary smectics. |
| NASA分類 | SOLID-STATE PHYSICS |
| レポートNO | 89A14375 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/367121 |
