Gupta, L. C. ; Sampathkumaran, E. V. ; Vijayaraghavan, R. ; Prabhawalkar, Varsha ; Prabhawalkar, P. D. ; Padalia, B. D. (1981) 3d core-level X-ray photoelectron spectroscopy of EuCu2Si2, a mixed-valence system Physical Review B: Condensed Matter and Materials Physics, 23 (8). pp. 4283-4285. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v23/i8/p4283_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.23.4283
Abstract
3d core-level X-ray photoelectron spectrum (XPS) of Eu in EuCu2Si2 exhibits two sets of simple spin-orbit split structures. We have assigned these structures to two different valence states of Eu (Eu2+ and Eu3+) in EuCu2Si2. The relative intensities of 2+ and 3+ peaks are strong functions of temperature. XPS in the 3d region of Eu has been employed for the first time to study the phenomenon of valence fluctuation. The relative advantage of 3d core-level spectroscopy of Eu over 4d and 4f spectral studies is brought out.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 45718 |
| Deposited On: | 28 Jun 2011 14:00 |
| Last Modified: | 10 Jul 2012 08:36 |
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