Dyc. Lie et al., DAMAGE AND STRAIN IN PSEUDOMORPHIC VS RELAXED GEXSI1-X LAYERS ON SI(100) GENERATED BY SI ION IRRADIATION, Journal of electronic materials, 23(4), 1994, pp. 369-373
We compare both the strain and damage that 100 keV Si irradiation at r
oom temperature introduces in pseudomorphic and relaxed GexSi1-x films
grown on Si(100) substrates. The ion range is such that the Si/GexSi1
-x interface is not significantly damaged. The amount of damage produc
ed in pseudomorphic and relaxed GexSi1-x layers of similar x for irrad
iation doses up to 2.5 x 10(14) Si/cm2 is the same, which proves that
a pre-existing uniform strain does not noticeably affect the irradiati
on-induced damage. However, the irradiation-induced strain does depend
on the pre-existing strain of the samples. Possible interpretations a
re discussed.