Polarised neutron study of the RCo₅intermetallic compounds. I. The cobalt magnetisation in YCo₅

Origin of Cobalt Anisotropy in Rare Earth-Cobalt Intermetallics

“…Such an orbital selection through resonance integrals plays also a role in the RCos (R = Y, Th or a rare earth) intermetallics and is in agreement with the high uniaxial cobalt anisotropy in these compounds [4]. In this case the cobalt chemical bonds have a strong planar character, in particular the R-Co bond for the cobalt atoms at the site 2c which hold the largest anisotropy [5]. This latter bond enhances the dispersion of the oblate states through the 3d-5d hybridization.…”

Electronic Structure of DyCo5and DyCo3B2Compounds

“…[6], and by Szaj ek [7]. By the neutro n di˜ra cti on measurem ents, magneti c m om ents of Co ato ms on 3g and 2c sites are observed as 1 : 7 2 ñ B and 1 : 7 7 ñ B , respecti vel y [14].…”

First principles calculations, neutron, and x-ray diffraction investigation of Y3Ni13B2, Y3Co13B2, and Y3Ni10Co3B2

“…10 An impressive research effort has been undertaken on the 1:5 phases to tailor their hard magnetic properties for applications, and on the fundamental side, to reveal the origin of the outstanding magnetic anisotropy of the essentially itinerant Co 3d electrons. Actually, YCo 5 has become a real workbench for the study of the 3d orbital polarization, 11,12 as well as for the ab initio calculations of MAE and orbital magnetic moment. [13][14][15][16][17][18][19][20] At the same time, taking advantage of the structural regularity of the R mþn T 5mþ3n B 2n series, the researches have extended over various stabilized stoichiometries, particularly with m ¼ 1 and n ¼ 1, 2, 3, and infinity.…”