Raman scattering, X-ray photoemission spectra and superconductivity of a tiny Ag diffusion to MgCNi3

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dc.creatorLiu, Fa-Min
dc.creatorLi, J. Q.
dc.creatorDong, C.
dc.creatorWang, T. M.
dc.creatorZhou, Y. Q.
dc.creatorChen, H.
dc.date2002-04-25
dc.date.accessioned2026-07-07T02:45:12Z
dc.date.available2026-07-07T02:45:12Z
dc.descriptionThe tiny Ag diffusion to MgCNi3 has been prepared by solid states reaction. Its structure was characterized by X-ray diffractometer (XRD). The results show that a small mount of Ag substitute for Ni sites, and much of Ag are in vacancy sites of the MgCNi3. We have further studied the surface properties of Ag-MgCNi3 using Raman scattering spectra, and X-ray photoemission spectra (XPS). Raman spectroscopy shows that the Ag-MgCNi3 has a special Raman peak around 842.1 cm-1 compared to that of C. The superconductor transition temperature (about 6.6 K) of Ag-MgCNi3 was lower than that of pure MgCNi3. It was interpreted properly by the conventional BCS phonon mechanism.
dc.description12 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0204543
dc.identifierhttp://arxiv.org/abs/cond-mat/0204543
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/19215
dc.subjectSuperconductivity
dc.subjectMaterials Science
dc.titleRaman scattering, X-ray photoemission spectra and superconductivity of a tiny Ag diffusion to MgCNi3
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