Jul 7, 2010
CU Boulder Soft Materials Research Center (2014)
Exotic Phases of Banana-Shaped Molecules
L. E. Hough, H. T. Jung, D. Krüerke, M. S. Heberling, M. Nakata, C. D. Jones, D. Chen, D. R. Link, J. Zasadzinski, G. Heppke, J. P. Rabe, W. Stocker, E. Körblova, D. M. Walba, M. A. Glaser, and N. A. Clark
Banana shaped molecules, like the one shown in the
figure, like to pack into layers but when they do, they have a hard time making
flat ones. Their layers have a
strong tendency to buckle up into saddles, and when the saddles try to fill
space interesting things happen.
If the layers are crystal-like they can only form the twisted nanofilaments
in the top of the image. If the
layers are fluid, like in a liquid crystal, then they form the "plumbers
nightmare" of nested tubes and connections, the "sponge phase",at the