The MOCVD growth of modified AlAs/GaAs double barrier resonant tunneling diodes(DBRTD)withan A1GaAs chair was reported.The resonances to the first excited state
During mechanical alloying variables such as the type of mill,milling intensity,milling time,milling at-mosphere and ball-to-powder weight ratio(BPR)affect the
Nb-bearing slag from Baotou hot metal was chlorinated in the solid state with molten CaCl<sub>2</sub> under vacuum,96~98% MnO or FeO being thus volatilized.By re