Published in Physical Review Letters, Volume 83, Issue 7, August 16, 1999, pages 1363-1366.
NOTE: At the time of publication, the author Karl Saunders was not yet affiliated with Cal Poly.
The definitive version is available at https://doi.org/10.1103/PhysRevLett.83.1363.
Smectics in strained aerogel exhibit two new glassy phases. The strain both ensures the stability of these phases and determines their nature. One type of strain induces an “ XY Bragg glass,” while the other creates a novel, triaxially anisotropic “ m = 1 Bragg glass.” The latter exhibits anomalous elasticity, characterized by exponents that we calculate to high precision. We predict the phase diagram, and numerous other experimentally observable scaling laws, for the system.
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