Disorder-induced cubic phase in Fe2-based Heusler alloys

Half-metallic Co-based quaternary Heusler alloys for spintronics: Defect- and pressure-induced transitions and properties

Magnetostriction of Ni2Mn1−xCrxGa Heusler Alloys

Among the functionalities of magnetic Heusler alloys, magnetostriction is attracting considerable attention. The alloy Ni2MnGa has a premartensite phase, which is a precursor state to the martensitic transition. Some researchers have observed magnetostriction in this alloy in the premartensite phase. We performed magnetostriction studies on the premartensite phase of related Cr-substituted Ni2M...

The Effect of Cobalt-Sublattice Disorder on Spin Polarisation in Co2FexMn1−xSi Heusler Alloys

In this work we present a theoretical study of the effect of disorder on spin polarisation at the Fermi level, and the disorder formation energies for Co₂FexMn1-xSi (CFMS) alloys. The electronic calculations are based on density functional theory with a Hubbard U term. Chemical disorders studied consist of swapping Co with Fe/Mn and Co with Si; in all cases we found these are detrimental for sp...

Structural properties of magnetic Heusler alloys

Magnetically driven actuator materials, such as the ternary and intermetallic Heusler alloys with composition X2YM, are studied within the density-functional theory (DFT) with the generalized gradient approximation (GGA) for the electronic exchange and correlation. The geometrical and electronic structures for the magnetic L21 structure are calculated. The structures and magnetic moments at equ...

Ferrimagnetism and antiferromagnetism in half-metallic Heusler alloys

Iosif Galanakis∗1, Kemal Özdoğan2, Ersoy Şaşıoğlu3,4, and Bekir Aktaş2 1 Department of Materials Science, University of Patras, GR-26504 Patra, Greece 2 Department of Physics, Gebze Institute of Technology, Gebze, 41400, Kocaeli, Turkey 3 Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425 Jülich, Germany 4 Fatih University, Physics Department, 34500, Büyükçekmece, İstanbul, Turkey