Surface treatment of (11̄02) sapphire and (100) silicon for molecular beam epitaxial growth

Abstract
A low-temperature surface preparation technique for molecular beam epitaxial growth of silicon on sapphire and silicon is described. Thermal desorption of regrown oxide has been accomplished at 850 °C and epitaxial growth at 650 °C. A comparison of two surface treatment techniques for silicon (100) and sapphire (11̄02) substrates is reported.