Magnetic structure ofCo1−xMnxalloys

Density-functional study of oxidation at the Mn–Co interface

“…Since the magnetic properties of transition metals in metallic systems are determined essentially by the d electrons and the above values being close to literature data on metallic or covalent radii we expect that the above choice is physically a sound one. All the results are in agreement with literature data [25,[29][30][31][32][33]. Because of the 2% mismatch with the Cu lattice, Co films will be slightly strained.…”

Large moments in bcc FexCoyMnz ternary alloy thin films

“…For accurate moment values, the moment extraction from the XMCD spectra is calibrated using a pure bcc Fe film with a known moment of 2.2 l B /atom and a pure bcc Co film with a theoretical value of 1.65 l B /atom. 35 We have used the theoretical value since the experimentally determined values of the Co moment vary from 1.5 to 1.7 l B /atom. 8,36 For the Mn moment calibration, we use a value of 3.0 l B /atom for low Mn concentrations that we determine from LDA calculations which is in agreement with other theoretical values.…”

Enhanced ferromagnetic phase diagram of epitaxial (Co,Mn) alloys on GaAs(001)

“…In a previous study of ͑Co,Mn͒ layers on GaAs͑001͒, a similar bodycentered phase was deduced from spotlike RHEED patterns during three-dimensional͑3D͒ growth on the substrate. 21 There, the symmetry of the RHEED spots indicated that for increasing x, the body-centered phase gradually gives way to a face-centered phase which becomes complete at x = 0.8. Similar behavior was also observed in spin-polarized tunneling experiments on fcc ͑Co,Mn͒ layers grown on Si substrates.…”