Orientation-dependent transport and Goos-Hanchen effect in phorsphorene

By using the continuum model, we systematically investigate the transport property in the phorsphorene NPN junction. Different devices with different angles between the ribbon and armchair directions are studied. With the increase of this angle from 0°, it is found that the transmission first exhibits the oscillating behavior. Particularly, with the further increase of the angle close to 90°, the transmission goes through a fast drop to zero. We further find that the fast drop arises from the transformation of the transporting carriers from the Dirac quasiparticles into Schrodinger ones, and the angel of this transformation is related to the anisotropy of the effective mass, providing the possibility to shed light on the electronic device design. Furthermore, study of the Goos-Hanchen effect in the phorsphorene NPN junction is also addressed. It is interesting to find that even for the slight change of the angle between the ribbon and armchair directions, remarkable change of the incoming wave pocket is obtained, providing the promising candidate as the wave-pocket-selected filter. Finally, all above properties in NN’N junctions of the bulk phorsphorene are also addressed.