Electronic structure of Co2-xPdxTiSn alloys
Autor(en): | Slebarski, A Jezierski, A Neumann, M Plogmann, S |
Stichwörter: | band calculation; COMPOUND; electronic structure; GA; HEUSLER; Heusler alloys; MAGNETIC-PROPERTIES; Materials Science; Materials Science, Multidisciplinary; Physics; Physics, Condensed Matter | Erscheinungsdatum: | 1998 | Herausgeber: | ELSEVIER SCIENCE BV | Journal: | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | Volumen: | 185 | Ausgabe: | 1 | Startseite: | 43 | Seitenende: | 48 | Zusammenfassung: | The electronic structure of the Co2-xPdxTiSn Heusler alloys have been studied by X-ray photoemission spectroscopy (XPS). Co2TiSn and Pd2TiSn ordered alloys crystallize in the L2(1)-type structure. The X-ray diffraction studies showed that there is a solid solubility within the L2(1)-type structure for all the x values. XPS valence band spectra can be compared with ab initio electronic structure calculations using the linearized muffin-tin orbital (LMTO) method. We have found the gap in the bands between the Sn s-states and the d-states of the other elements. The Ti d-states are located near to the Fermi level and are strongly hybridized with the Pd or Co d-states. Careful analysis of the valence bands, calculated and experimentally obtained, suggests an atomic disorder in the investigated alloys. (C) 1998 Elsevier Science B.V. All rights reserved. |
ISSN: | 03048853 | DOI: | 10.1016/S0304-8853(98)00016-X |
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geprüft am 29.05.2024