de Haas-van Alphen effect, LMTO bandstructure and Fermi surface of beta '-AuMg

Dunsworth, A. E.; Jan, J -P; Skriver, Hans Lomholt

doi:10.1088/0305-4608/9/2/016

Cited by 9 publications

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“…Similar behaviour was observed by Fuggle et a1 [SI in an XPS study of a series of Mg-Au alloys. The Fermi surfaces of MgAg [6] and MgAu [7] were studied by Dunsworth el al using de Haas-van Alphen (dHvA) measurements and linear muffin tin orbital (LMTO) bandstructure calculations. Their calculations showed some degree of narrowing of the Ag and Au d bands, and Fermi surfaces in good agreement with experiment A symettrized augmented plane wave (SAPW) bandstructure calculation for MgY, of interest as the electronic structure will be similar in other Mg-rare-earth compounds, has been reported by Schmitt er a1 [8].…”

Section: Introductionmentioning

confidence: 99%

High d-band occupancy in alloys of Mg with some 4d and 5d transition metals: a photoemission study

Blyth¹,

Andrews²,

Birtwistle³

1991

J. Phys.: Condens. Matter

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Photoemission data from m-sputtered films of binaly alloys of Ru. Rh, Pd. Ir, Pt and Au with Mg show that the transition meal (m) d band narrow as the TM concentration is reduced, reaching a minimum after which the intensity decreases but the widlh remains constant. The continuity of binding energy, spin-orbit splitling and width of lhe resulting d states suggests a high level of d-band occupanq in all cases. m bandsmcrure calculations for pure TM and ordered intermetallic compounds of the form Mgm and Mg?m also show narrowing of the d bands, with binding energies and widths which indicate thal lhey are fully, or nearly fully occupied in all cases where the TM is dilute. We suggest that the additional d intensity mulls From a spread of the TM d wavefunctions on to the surrounding Mg sites, allowing high d-band occupancy whilst preserving charge neutrality.

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Section: Introductionmentioning

confidence: 99%