We present a core-level photoemission study of Sr(3)(Ru(1-x)Mn(x))(2)O(7), in which we monitor the evolution of the Ru-3d fine structure versus Mn substitution and probing depth. In both Ru-3d(3/2) and -3d(5/2) core levels, we observe a clear suppression of the metallic features, i.e. the screened peaks, implying a sharp transition from itinerant to localized character already at low Mn concentrations. A comparison of soft and hard x-ray photoemission, which enables tunable depth sensitivity, reveals that the degree of localized/metallic character for Ru at the surface is different from that in the bulk.

Panaccione, G., Manju, U., Offi, F., Annese, E., Vobornik, I., Torelli, P., et al. (2011). Depth dependence of itinerant character in Mn-substituted Sr(3)Ru(2)O(7). NEW JOURNAL OF PHYSICS, 13, 053059 [10.1088/1367-2630/13/5/053059].

Depth dependence of itinerant character in Mn-substituted Sr(3)Ru(2)O(7)

OFFI, FRANCESCO;
2011-01-01

Abstract

We present a core-level photoemission study of Sr(3)(Ru(1-x)Mn(x))(2)O(7), in which we monitor the evolution of the Ru-3d fine structure versus Mn substitution and probing depth. In both Ru-3d(3/2) and -3d(5/2) core levels, we observe a clear suppression of the metallic features, i.e. the screened peaks, implying a sharp transition from itinerant to localized character already at low Mn concentrations. A comparison of soft and hard x-ray photoemission, which enables tunable depth sensitivity, reveals that the degree of localized/metallic character for Ru at the surface is different from that in the bulk.
2011
Panaccione, G., Manju, U., Offi, F., Annese, E., Vobornik, I., Torelli, P., et al. (2011). Depth dependence of itinerant character in Mn-substituted Sr(3)Ru(2)O(7). NEW JOURNAL OF PHYSICS, 13, 053059 [10.1088/1367-2630/13/5/053059].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/121221
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