de Haas-van Alphen effect, LMTO bandstructure and Fermi surface of β'-AgMg

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

doi:10.1088/0305-4608/8/7/016

Cited by 16 publications

(2 citation statements)

References 8 publications

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“…The joint density-of-states calculations [2] for CuZn show that the energy corresponding to the onset of the interband transitions from the top of the Cu d-band to E , and that corresponding to the transitions from E, to the vacant conductive As in noble metals, PdIn compounds exhibit interband transitions a t energies below the LLmain" absorption threshold. Appearing as a hump before the "main" absorption threshold the interband absorption a t 1.7 eV (Fig.…”

Section: Discussionmentioning

confidence: 99%

Interband Absorption in the Coloured Intermetallic Compounds PdIn

Nomerovannaya

Kirillova

Shaikin

1980

Physica Status Solidi (b)

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The refractive, n, and absorption, k, indexes of six intermetallic PdIn compounds are measured in the spectral range of 0.248 to 17 pm by Beattie's polarimetric method, the indium concentration being 42, 44, 46, 48, 50, and 52 atyo. All the compounds are single crystals. It is shown that as the indium concentration increases from 42 to 52 atyo, the interband absorption peaks found a t 0.15 to 0.17, 0.6 to 0.7, 2.2 to 2.65, and 2.6 to 3.2 eV shift towards lower energies, while that at 4.6 eV does not change its position with temperature and indium concentration. Comparison of the high-frequency conductivity ~( w ) dispersion and the energy bands of equiatomic P'-PdIn shows that the interband absorption a t hw < 3 eV is caused by the electronic transitions from the

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Section: Discussionmentioning

confidence: 99%

Interband Absorption in the Coloured Intermetallic Compounds PdIn

Nomerovannaya

Kirillova

Shaikin

1980

Physica Status Solidi (b)

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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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2.2.1.1 Survey

Sellmyer¹

Landolt-Börnstein - Group III Condensed Matter

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de Haas-van Alphen effect, LMTO bandstructure and Fermi surface of β'-AgMg

Cited by 16 publications

References 8 publications

Interband Absorption in the Coloured Intermetallic Compounds PdIn

Interband Absorption in the Coloured Intermetallic Compounds PdIn

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

2.2.1.1 Survey

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