Greenall M J, Voigtmann Th, Monthoux P, Cates M E
Scottish Universities Physics Alliance, School of Physics, The University of Edinburgh, Edinburgh EH9 3JZ, UK.
Phys Rev E Stat Nonlin Soft Matter Phys. 2006 May;73(5 Pt 1):050501. doi: 10.1103/PhysRevE.73.050501. Epub 2006 May 19.
We quantify, within mode coupling theory, how changes in the liquid structure affect that of the glass. Apart from the known sensitivity to the structure factor S(q) at wave vectors around the first sharp diffraction peak q0, we find a strong (and inverted) response to structure at wave vectors below this peak: an increase in S(q0/2) lowers the degree of arrest over a wide q-range. This strong sensitivity to "caged cage" packing effects, on length scales of order 2d, is much weaker in attractive glasses where short-range bonding dominates the steric caging effect.
