In situ observation of gas-source molecular beam epitaxy of silicon and germanium on Si(001)

1998 ◽  
Vol 16 (3) ◽  
pp. 1938-1943 ◽  
Author(s):  
I. Goldfarb ◽  
J. H. G. Owen ◽  
D. R. Bowler ◽  
C. M. Goringe ◽  
P. T. Hayden ◽  
...  
1991 ◽  
Vol 222 ◽  
Author(s):  
B. W. Liang ◽  
H. Q. Hou ◽  
C. W. Tu

ABSTRACTA simple kinetic model has been developed to explain the agreement between in situ and ex situ determination of phosphorus composition in GaAs1−xPx (x < 0.4) epilayers grown on GaAs (001) by gas-source molecular-beam epitaxy (GSMBE). The in situ determination is by monitoring the intensity oscillations of reflection high-energy-electron diffraction during group-V-limited growth, and the ex situ determination is by x-ray rocking curve measurement of GaAs1−xPx/GaAs strained-layer superlattices grown under group-III-limited growth condition.


Author(s):  
B. A. Joyce ◽  
J. Zhang ◽  
A. G. Taylor ◽  
M. H. Xie ◽  
J. M. Fernández ◽  
...  

1999 ◽  
Vol 581 ◽  
Author(s):  
F. Edelman ◽  
F. Börner ◽  
R. Krause-Rehrberg ◽  
P. Werner ◽  
R. Weil ◽  
...  

ABSTRACTThe crystallization behavior (ordering) of undoped and boron-doped Si0.5Ge0.5 films, deposited on SiO2/Si(001) substrate by molecular beam epitaxy in hish vacuum at room temperature, were studied by XRD, HRTEM and in situ by Doppler broadening spectroscopy using monoenergetic positrons. Some decomposition features of SiGe solid solutions were demonstrated via splitting the XRD peaks at high temperatures. The SiGe decomposition was detected in the precrystalline state of the SiGe undoped and doped films in the temperature range from 450 to 600 K by compaering S- and W-parameters of SiGe with that of amorphous silicon and germanium. In conclusion, we discuss model of internim ordering states before crystallization.


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