Bulk nucleation and amorphous phase formation in highly undercooled molten silicon
Journal Article
·
· Appl. Phys. Lett.; (United States)
Solidification of undercooled liquid (l) Si formed by pulsed laser melting of amorphous (a) layers has been studied experimentally and theoretically. Bulk nucleation apparently occurs at a temperature higher than that of the l..-->..a phase transition. Release of latent heat on nucleation is crucial in determining the depth of melting. It is emphasized that bulk nucleation implies that the l..-->..a transition cannot be explained by purely thermodynamic considerations.
- Research Organization:
- Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5138708
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 44:8; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
AMORPHOUS STATE
COOLING
CRITICAL TEMPERATURE
DATA
ELEMENTS
ENERGY
ENTHALPY
FREE ENERGY
HEATING
INFORMATION
LASER-RADIATION HEATING
LAYERS
MELTING
NUCLEATION
NUMERICAL DATA
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PLASMA HEATING
SEMIMETALS
SILICON
SOLIDIFICATION
THEORETICAL DATA
THERMODYNAMIC PROPERTIES
TRANSITION HEAT
TRANSITION TEMPERATURE
360602* -- Other Materials-- Structure & Phase Studies
AMORPHOUS STATE
COOLING
CRITICAL TEMPERATURE
DATA
ELEMENTS
ENERGY
ENTHALPY
FREE ENERGY
HEATING
INFORMATION
LASER-RADIATION HEATING
LAYERS
MELTING
NUCLEATION
NUMERICAL DATA
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PLASMA HEATING
SEMIMETALS
SILICON
SOLIDIFICATION
THEORETICAL DATA
THERMODYNAMIC PROPERTIES
TRANSITION HEAT
TRANSITION TEMPERATURE