  We introduce a practical and efficient approach for calculating the
all-electron full potential bandstructure in real space, employing a finite
element basis. As an alternative to the k-space method, the method involves the
self-consistent solution of the Kohn-Sham equation within a larger finite
system that encloses the unit-cell. It is based on the fact that the net
potential of the unit-cell converges at a certain radius point. Bandstructure
results are then obtained by performing non-self-consistent calculations in the
Brillouin zone. Numerous numerical experiments demonstrate that the obtained
valence and conduction bands are in excellent agreement with the
pseudopotential k-space method. Moreover, we successfully observe the band
bending of core electrons.
