An ultrathin alumina film grown on a Cu-9 at.% Al(111) substrate is investigated using low-temperature scanning tunneling microscopy and spectroscopy.The topogr
ZnO and ZnO/Agfilms are grown on Si(111) substrates by rf magnetron sputtering at room temperature.After annealing,it is found that the ultraviolet(UV) emission
We present exact results for the electronic transport properties of graphene sheets connected to two metallic electrodes.Our results obtained by transfer-matrix
Unique experimental phenomena are discovered in a large gap semiinsulating(SI)GaAs photoconductive semiconductor switch(PCSS)and the peculiar transmission chara