Experimental valence-band study of Ti(NiCu) alloys with different compositions and crystal structures
| Autor: | Boris Senkovskiy, Aleksandr Fedorov, Vera Adamchuk, Dmitry Usachov, Alexander Fedorov, Alexander Shelyakov |
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| Rok vydání: | 2012 |
| Předmět: |
Materials science
Fermi level chemistry.chemical_element Crystal structure Condensed Matter Physics Copper Electronic Optical and Magnetic Materials Amorphous solid Condensed Matter::Materials Science symbols.namesake Crystallography Nickel X-ray photoelectron spectroscopy chemistry Diffusionless transformation symbols Electronic density |
| Zdroj: | Physics of the Solid State. 54:1533-1538 |
| ISSN: | 1090-6460 1063-7834 |
| DOI: | 10.1134/s106378341208029x |
| Popis: | The density of valence-band electronic states of Ti(NiCu) alloys with different crystal structures and elemental compositions has been studied by X-ray photoelectron spectroscopy. It has been established that the change in the crystal state initiated by a martensitic transformation or a transition from the amorphous state to the crystal state does not affect the valence-band electronic state density distribution of the Ti50Ni50 and Ti50Ni25Cu25 alloys. It has been shown that a change in the elemental composition leads to a noticeable redistribution of the electronic density in alloys of the Ti50Ni50 − xCux system (x = 0, 10, 15, 25, 30, 38, 50 at. %). As the copper concentration in the Ti(NiCu) alloys increases, the contribution of the Ni d states in the vicinity of the Fermi level decreases, with the d band of nickel shifting toward higher binding energies, and that of copper, toward lower binding energies. |
| Databáze: | OpenAIRE |
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