Erratum: Magnetic behavior of FexNi(1−x) and CoxNi(1−x) pseudomorphic films [J. Vac. Sci. Technol. B 14, 3189 (1996)]

Abstract

Erratum: Deep-etch silicon mm-waveguide structure for the relativistic acceleration of electrons [J. Erratum: Scanning force microscopy and polymerization studies on cast thin films of hectorite and montmorillonite [J. ERRATA Erratum: Magnetic behavior of Fe x Ni (1؊x) and Co x Ni (1؊x) pseudomorphic films [J.

Cluster Core-Level Binding-Energy Shifts: The Role of Lattice Strain

“…We use the extension proposed by Hohlneicher et al [21], where the two Auger final state core holes are in the same shell; this extension puts the Auger parameter analysis on a sound foundation. Previous applications of Auger parameter analysis to the BE of supported clusters [11,22] have not used these refinements [21]. Both the Auger parameter analysis and the WF based separation of initial and final state contributions to the BE with cluster size show that these two terms have large magnitudes.…”

“…First, it is easier to control particle size for Co since it is less mobile than Cu [23]. Second, it is possible to study the Co L 3 M 2;3 M 2;3 Auger transition where all holes are in the core, while for Cu the best results reported [11] used the L 3 M 4;5 M 4;5 Auger lines where the Cu 3d, M 4;5 , electrons participate in the chemical bonding. However, we expect that the results for Co=Al 2 O 3 are representative for metal nanoparticles on relatively inert substrates [7].…”

“…On the other hand, Wertheim and collaborators [4,5] assigned the shift as due to final state screening effects and related the magnitude of BE to an effective cluster radius. For Cu clusters grown on thin Al 2 O 3 films, Wu et al [11] concluded from an Auger parameter analysis that initial state contributions are small and may be significant only for very small clusters. This separation is quite important since the initial state BE reflect changes in the electronic structure before ionization of a core level and, hence, are of direct interest for materials properties.…”

“…We studied Co, rather than Cu [11], clusters on Al 2 O 3 films for two reasons. First, it is easier to control particle size for Co since it is less mobile than Cu [23].…”

“…Thus, the question of how the PES of deposited nanoparticles reflects their electronic and geometric structures is quite important. It is known that the corelevel BE's of metal clusters on insulating supports [3][4][5][6][7][8][9][10][11][12] shift to lower BE with increasing size by BE 1 eV from small clusters to bulk metal. However, there is substantial disagreement over the assignment of these shifts to initial or final state effects; see Ref.…”