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SUMMARY:A STUDY OF LOCAL ELASTICITY  HETEROGENEITIES OF AMORPHOUS SOLIDS
LOCATION:Chemistry A101
TZID:America/Denver
DTSTART:20192001T000000
UID:2026-05-01-05-07-01@natsci.colostate.edu
DTSTAMP:20260501T050701
Description:Research Seminar\nNumerous previous studies have suggested that
  the universal thermal and vibrational properties of amorphous solids whic
 h are at variance with crystalline solids\, e.g.  low-temperature scaling
  of the heat capacity with temperature\, stronger sound damping at low tem
 peratures\, and the temperature dependence of the thermal conductivity\, a
 re linked to the local inhomogeneous elastic response of amorphous solids.
  Here\, we discuss the local stress and the local strain of glassy systems
  with different stabilities. In this work\, we calculate the local elastic
  constants and their probability distributions. From the distributions\, w
 e also determine the stability dependence of the local heterogeneities of 
 the solid. The system preparation starts with the instant quenching of a s
 upercooled liquid\, namely the parent structure\, at a finite parent tempe
 rature to T = 0. The parent temperature is treated as a stability paramete
 r and the stability dependence of the local elastic constant is studied vi
 a a change in the parent temperature of a series of the  supercooled liqu
 ids. We have determined that the standard deviations of the distributions 
 become smaller for the most stable glassy media. We also find that there i
 s no spatial correlation between the local elastic moduli.\n&nbsp\; 4:00 p
 m
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