Bibliographic Details
| Title: |
Helical Nanofilament Phases. |
| Authors: |
Hough, L. E., Jung, H. T., Krüerke, D., Herberling, M. S., Nakata, M., Jones, C. D., Chen, D., Link, D. R., Zasadzinski, J., Heppke, G., Rabe, J. P., Stocker, W., Körblova, E., Walba, D. M., Glaser, M. A., Clark, N. A. |
| Source: |
Science (pre-March 2025). 7/24/2009, Vol. 325 Issue 5939, p456-460. 5p. |
| Subjects: |
Nanotechnology, Nanocrystals, Lattice dynamics, Strains & stresses (Mechanics), Chirality, Coherence (Nuclear physics), Liquid crystals |
| Abstract: |
In the formation of chiral crystals, the tendency for twist in the orientation of neighboring molecules is incompatible with ordering into a lattice: Twist is expelled from planar layers at the expense of local strain. We report the ordered state of a neat material in which a local chiral structure is expressed as twisted layers, a state made possible by spatial limitation of layering to a periodic array of nanoscale filaments. Although made of achiral molecules, the layers in these filaments are twisted and rigorously homochiral--a broken symmetry. The precise structural definition achieved in filament self-assembly enables collective organization into arrays in which an additional broken symmetry---the appearance of macroscopic coherence of the filament twist-- produces a liquid crystal phase of helically processing layers. [ABSTRACT FROM AUTHOR] |
|
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| Database: |
Psychology and Behavioral Sciences Collection |
