Localization versus delocalization of d-states within the [Formula: see text]MnGa Heusler alloy.

We present calculations based on density-functional theory with improved exchange-correlation approaches to investigate the electronic structure of [Formula: see text]MnGa magnetic shape memory alloy prototype. We study the effects of hybrid functionals as well as a Hubbard-like correction parameter U on the structural, electronic and magnetic properties of the alloy. We show that the previously successful application of U on Mn should be extended by including U on Ni to describe the d localized electrons more accurately and in better agreement with experiments.

Relationship between Phase Occurrence, Chemical Composition, and Corrosion Behavior of as-Solidified Al-Pd-Co Alloys.

The microstructure, phase constitution, and corrosion performance of as-solidified AlPdCo and AlPdCo alloys (element concentrations in at.%) have been investigated in the present work. The alloys were prepared by arc-melting of Al, Pd, and Co lumps in argon.