ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Experimental and theoretical evidence is given for the occurrence of a temperature and strain dependent roughening transition from two dimensional (2-D) monolayer to 3-D island growth in strained III-V compound ternary alloys and GeSi. For sufficiently large strain energy values the shape of the transition curve was found to follow a T∼ε−2f relationship, as predicted from classical nucleation theory arguments, where T is the growth temperature and εf the areal misfit strain energy. The asymptotic behavior in the zero strain energy regime could be reproduced by an empirical curve of a more complex expression. The transition curve appears to separate routes of strain relief in the above systems, which were found to predominantly follow 3-D island formation in the higher, and misfit dislocation formation in the lower growth temperature/strain regime. © 1995 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.360270
