Time-resolved x-ray study of Ge during pulsed laser melting

Tischler, J. Z.; Larson, B. C.; Mills, D. M.
May 1988
Applied Physics Letters;5/23/1988, Vol. 52 Issue 21, p1785
Academic Journal
Nanosecond resolution time-resolved x-ray diffraction has been used to make the first measurements of the liquid-solid interface overheating and undercooling in germanium. The results show an orientation-dependent undercooling for growth on (111) and (001) faces. For both the (111) and (001) faces the velocity versus temperature interface response function has a slope of ∼5 K/(m/s), except for undercooling on the (111) face where the slope is 20 K/(m/s).


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