Rao, C. N. R. ; Sarma, D. D. ; Sarode, P. R. ; Vijayaraghavan, R. ; Dhar, S. K. ; Malik, S. K. (1981) XPS and X-ray absorption edge studies of the surface and bulk valence states of cerium in CeCo2 Journal of Physics C: Solid State Physics, 14 (15). L451-L454. ISSN 0022-3719
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Official URL: http://iopscience.iop.org/0022-3719/14/15/005
Related URL: http://dx.doi.org/10.1088/0022-3719/14/15/005
Abstract
XPS and LIII X-ray absorption edge studies regarding the valence state of cerium have been carried out on the intermetallic compounds CeCo2, which becomes superconducting at low temperatures. It is observed from XPS that the surface shows both Ce3+ and Ce4+ valence states, while the X-ray absorption edge studies reveal only Ce4+ in the bulk. Thus valence fluctuation and superconductivity do not coexist in the bulk of this compound.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics. |
| ID Code: | 44746 |
| Deposited On: | 23 Jun 2011 05:22 |
| Last Modified: | 16 Jul 2012 07:10 |
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