Iron nickel alloy has a unique magnetic property. It has superior properties and can be used for a variety of applications. The metal is a native metal and can be formed through a variety of processes. TEM and SEM studies have been done to study the structure of iron nickel alloys.
In addition to magnetic properties, iron and nickel have a different set of electronic states. While iron has an almost full occupancy of five d orbitals, nickel has nearly nine d electrons. This difference between the d-shell fillings is what makes nickel so unusual.
An iron-nickel disordered alloy was studied at the Earth's core. The results suggest that the inner core of the planet contains a non-Fermi liquid phase.
This phase is close to the local moment of iron. Moreover, it is closer to the local moment than the itinerant electron description. However, there is a sharp feature at the top of the t2g DOS, which may be the location of van Hove singularity.
A wide range of experimental studies has investigated the equations of state of hcp-iron-nickel at high temperatures. The results indicate a large thermal parameter range, including a considerable range of aging mode. Nevertheless, there is limited constraint on the thermal equations of state.
Several FeNi alloys were investigated, whose molar ratios varied from 10 to 25 wt% Ni. In some cases, the crystal structure suggested a fcc phase, while others indicated an hcp phase. These alloys reached 2000 K and 300 GPa.