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Stress release in ion implanted lattice mismatched semiconductor heterostructures

Conference ·
OSTI ID:6922752

Cantilever-beam measurements of ion-implantation induced stress in (InGa)As/GaAs, Ga(AsP)/GaP, and Ga(AsP)/GaAs strained layer superlattices (SLSs), grown either by molecular-beam epitaxy (MBE) or metalorganic chemical vapor deposition (MOCVD), have shown that a mechanism for precipitous stress-relief can be operative for room-temperature damage-energy deposition values above approx. 2 x 10/sup 20/ keV/cm/sup 3/. This phenomenon is correlated with the initial residual compressive stress on the composite structure and is determined by the differences in lattice parameter between the substrate and the buffer alloy-layer.

Research Organization:
Sandia National Labs., Albuquerque, NM (USA)
DOE Contract Number:
AC04-76DP00789
OSTI ID:
6922752
Report Number(s):
SAND-86-1821C; CONF-861207-41; ON: DE87004518
Country of Publication:
United States
Language:
English