| Autor: |
Riedl T; IFW Dresden, PF 270116, D-01171 Dresden, Germany. T.Riedl@ifw-dresden.de, Gemming T, Gruner W, Acker J, Wetzig K |
| Jazyk: |
angličtina |
| Zdroj: |
Micron (Oxford, England : 1993) [Micron] 2007; Vol. 38 (3), pp. 224-30. Date of Electronic Publication: 2006 Aug 01. |
| DOI: |
10.1016/j.micron.2006.06.017 |
| Abstrakt: |
In this article several experimentally identified Mn valence-sensitive ELNES quantities for the La1-xSrxMnO3 compound class are presented, namely the energy separations between Mn-L3 and O-Ka, between O-Kb and O-Ka edges, the Mn-L2,3 white line intensity ratio, and the Mn-L3 line width. Valence sensitivities of these quantities are evaluated, and possible additional influences on them are considered. At high signal-to-noise ratio the two energy separations display most sensitively changes of the Mn valency. An experiment-based estimation of the total uncertainties of the quantities indicates that at low signal-to-noise ratio, which is the case when studying interface effects at high spatial resolution, again both energy separations allow to resolve the smallest valency changes. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
|
Full Text from ScienceDirect