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Title: Observation of Structural Anisotropy and the Onset of Liquid-like Motion during the Non-thermal Melting of InSb

Technical Report ·
DOI:https://doi.org/10.2172/878359· OSTI ID:878359

The melting dynamics of laser excited InSb have been studied with femtosecond x-ray diffraction. These measurements observe the delayed onset of diffusive atomic motion, signaling the appearance of liquid-like dynamics. They also demonstrate that the root mean-squared displacement in the [111] direction increases faster than in the [110] direction after the first 500 fs. This structural anisotropy indicates that the initially generated fluid differs significantly from the equilibrium liquid.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-76SF00515
OSTI ID:
878359
Report Number(s):
SLAC-PUB-11507; TRN: US200611%%22
Country of Publication:
United States
Language:
English