TY - RPRT TI - High Electron Mobility in SiGe/Si n-MODFET Structures on Sapphire Substrates AU - Mueller, Carl H. AU - Croke, Edward T. AU - Alterovitz, Samuel A. PY - 2003 UR - https://ntrs.nasa.gov/citations/20030112244 ID - 20030112244 ER -