机译:Raman spectroscopy study of AgGaSe_2, AgGa_(0:9)In _(0:1)Se_2, and AgGa_(0:8)In_(0:2)Se _2 crystals
Physics Department, Fisk University, Nashville, TN 37208, United States;
Air Force Research Laboratory, Wright Patterson Air Force Base (WPAFB), OH 45433, United States;