Abstract
The electrical and physical properties of ErSix on n-type Si(100) and Si(551) surfaces are reported. The Schottky barrier heights (SBHs) depend on the Si substrate orientation. On a Si(100) surface, a low electron SBH around 0.3 eV is obtained and the obtained SBH is larger than 0.4 eV on a Si(551) surface, while this difference is caused by the quantity of Si atoms in ErSix and on Si(100) this is less than on Si(551). These silicidation reactions are very important to develop the future high current drivability devices using any surface orientation.
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