  Study of Fe based compounds have drawn much attention due to the discovery of
superconductivity as well as many other exotic electronic properties. Here, we
review some of our works in these materials carried out employing density
functional theory and angle resolved photoemission spectroscopy. The results
presented here indicate that the dimensionality of the underlying electronic
structure plays important role in deriving their interesting electronic
properties. The nematicity found in most of these materials appears to be
related to the magnetic long range order. We argue that the exoticity in the
electronic properties are related to the subtlety in competing structural and
magnetic instabilities present in these materials.
