Figure 5
From: New high Tc multiferroics KBiFe2O5 with narrow band gap and promising photovoltaic effect
Band structure of KBiFe2O5.
(a) UV-Vis-near IR absorption spectrum of KBiFe2O5. Inset: (αhv)2 versus hv for band gap determination. (b) Band structure of KBiFe2O5, (c) Spin-up (left branch) and spin-down (right branch) components of density of states (DOS) and (d) charge density parallel to the 001 plane.
