Biswas, C. ; Banik, S. ; Shukla, A. K. ; Dhaka, R. S. ; Ganesan, V. ; Barman, S. R. (2006) Surface composition and electronic structure of Ni2+xMn1-xGa studied by X-ray photoelectron spectroscopy Surface Science, 600 (18). pp. 3749-3752. ISSN 0039-6028
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.susc.2006.01.078
Abstract
The surface of Ni2+xMn1-xGa have been studied using X-ray photoelectron spectroscopy under different conditions of surface preparation. We find that the surface becomes Ni rich by argon ion sputtering. However, the change in surface composition due to sputtering can be reverted by annealing at appropriate temperature so that the bulk composition is restored at the surface. The origin of a satellite feature observed both in the valence band and the Ni 2p core-level spectra is discussed. The magnetic microstructures at the surface have been observed by using magnetic force microscopy.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Heusler Alloy; Core-level Photoelectron Spectroscopy; Satellite; Valence Band |
| ID Code: | 93240 |
| Deposited On: | 14 Jun 2012 12:48 |
| Last Modified: | 17 Jul 2012 08:13 |
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