Fabrication of SrGe2 thin films on Ge (100), (110), and (111) substrates

RHEED and θ–2θ XRD patterns of the samples after the Sr deposition. The crystal orientation of the Ge substrate is a？e (100), f？j (110), and k？o (111). Tsub is ranged from 300 to 700 °C for each substrate. The peaks corresponding to SrGe2 are highlighted in re