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