Effect of Species-Dependent Surface Atomic Mobility on Pattern Selection During Alloy Growth
RUSSIAN ACADEMY OF SCIENCES SAINT PETERSBURG IOFFE PHYSICAL-TECHNICAL INST
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The steady state phase diagram applies to any alloy. We show a possibility to form 2D structures with arbitrary small wavelength and explain commonly observed 2D structures modulated in 100 and 010 directions. Kinetic phase transition between the growth of 1D structure and the growth of 2D structure provides a possibility to time the structure between 1D and 2D ones at arbitrary scale by varying temperature andor growth velocity.