Growth of NiO and MgO Films on Ag(100)

Wollschläger, J.; Erdös, D.; Goldbach, H.D.; Höpken, R; Schröder, Klaus

doi:10.1016/s0040-6090(01)01482-1

Cited by 111 publications

(108 citation statements)

References 24 publications

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“…Similar effects have been reported in several other cases, related to oxide films characterized by the development of a misfit dislocation network, and were attributed to the surface mosaic spread (i.e. to the local tilting of the surface) [10,11,50,51,53,54].…”

Section: Lowsupporting

confidence: 84%

Self-organized nano-structuring of CoO islands on Fe(001)

Brambilla

Picone

Giannotti

et al. 2016

Applied Surface Science

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Section: Lowsupporting

confidence: 84%

Self-organized nano-structuring of CoO islands on Fe(001)

Brambilla

Picone

Giannotti

et al. 2016

Applied Surface Science

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“…Additionally, the dislocation lines exhibit a deviating electronic structure due to a lower amount of interfacial coupling, which also contributes to the image contrast. Similar dislocation networks have been observed for NiO on Pd(001) 206 and MgO on FeO(001) 207,208 via STM and for MgO, 209 NiO, 142 and CoO …”

Section: Growth and Relaxation Of Oxide Thin Filmssupporting

confidence: 79%

“…3.1 (ii) Apart from the symmetry match, the formation of high-quality interfaces requires a small difference between metal and oxide lattice constants, whereby the lattice mismatch must not exceed 5% to enable pseudomorphic growth. 142 For a larger mismatch, the oxide film reconstructs or forms coincidence structures already in the first layer, 146 (Fig. 3.2A).…”

Section: The Metal-oxide Interface: Structural Aspectsmentioning

confidence: 98%

“…142,143 For most metal-oxide combinations, however, structural rearrangements occur at a critical thickness to release the elastic deformations. The following mechanisms have been identified to reduce misfit-induced lattice strain in a metal-oxide system ( Fig (i) Misfit dislocations are extra atomic planes that have no counterpart in the lattice below and are inserted into oxide films with a smaller lattice constant than the support ( Fig.…”

Section: Growth and Relaxation Of Oxide Thin Filmsmentioning

confidence: 99%

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Properties of oxide thin films and their adsorption behavior studied by scanning tunneling microscopy and conductance spectroscopy

Nilius

2009

Surface Science Reports

218

233

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The preparation of thin oxide films on metal supports is a versatile approach to explore the properties of oxide materials that are otherwise inaccessible to most surface science techniques due to their insulating nature. Although substantial progress has been made in the characterization of oxide surfaces with spatially averaging techniques, a local view is often essential to provide comprehensive understanding of such systems. The scanning tunneling microscope (STM) is a powerful tool to obtain atomic-scale information on the growth behavior of oxide films, the resulting surface morphology and defect structure.

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“…Several studies have been carried out for magnesium oxide. [6][7][8][9] They form the basis for well defined studies of defect properties, so that a direct comparison with the wealth of theoretical results will be possible. In several theoretical papers [10][11][12][13] the properties of surface color centers F s on MgO have been investigated.…”

Section: Introductionmentioning

confidence: 99%

Formation of surface color centers at differently coordinated sites: MgO/Ag(1,1,19)

2003

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In order to find criteria for discrimination between surface color centers at terraces and steps, and bulk color centers, the characteristic losses of these centers have been investigated by electron energy loss spectroscopy on an epitaxial MgO film grown on a Ag ͑1,1,19͒ surface. This film contains a significantly higher step density compared with a film grown on Ag͑100͒. The generation of four distinct losses at 2.0, 2.4, 2.8, and 3.4 eV and a broad loss centered at 5.5 eV have been observed that are induced by electron bombardment of the MgO surface. The latter loss is attributed to bulk color centers (F b centers͒. By comparing the measured loss energies with experiments performed on MgO/Ag͑100͒ and with theoretical literature data, the observed losses at 2.0 and 2.8 eV can be consistently assigned to transitions of color centers located on step sites, whereas those at 2.4 and 3.4 eV are attributed to terrace sites. The kinetics of color center formation during electron bombardment, as well as the annihilation of F centers by simple exposure to O 2 gas at room temperature, was determined and compared for differently coordinated color centers. While all surface color centers follow the same kinetics, we show that the F b centers can only decay as long as the existence of surface color centers provides active sites for dissociating oxygen molecules. This corroborates the assignment of F b centers.

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Growth of NiO and MgO Films on Ag(100)

Cited by 111 publications

References 24 publications

Self-organized nano-structuring of CoO islands on Fe(001)

Self-organized nano-structuring of CoO islands on Fe(001)

Properties of oxide thin films and their adsorption behavior studied by scanning tunneling microscopy and conductance spectroscopy

Formation of surface color centers at differently coordinated sites: MgO/Ag(1,1,19)

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