The interface of Mn, Fe, Co and Au metal films on NiO(), investigated by photoemission and low energy electron diffraction

Masi, R.; Reinicke, D.; Müller, Frank; Steiner, P.; Hüfner, S.

doi:10.1016/s0039-6028(02)01970-2

Cited by 37 publications

(21 citation statements)

References 33 publications

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“…3). This shoulder corresponds to the binding energy of the metallic Ni and confirms the previous observation of chemical activity at the Au/NiO interface [7]. We have fitted the Ni 2p 3/2 peak for all the Au depositions using a linear combination of the Ni 2p 3/2 of the bare NiO film and of Ni bulk recorded in the same experimental conditions (Fig.…”

Section: Resultssupporting

confidence: 88%

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Morphology and chemical activity at the Au/NiO interface

Benedetti

Torelli²,

Luches³

et al. 2006

Surface Science

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Section: Resultssupporting

confidence: 88%

“…Nevertheless, a recent work reports an unexpected chemical reaction between Au and NiO:Au deposition on NiO film gives rise to the formation of a small amount of metallic Ni [7]. In this study we address the growth mode of Au overlayer deposited on NiO and the chemical activity at the Au/NiO interface.…”

Section: Introductionmentioning

confidence: 95%

Morphology and chemical activity at the Au/NiO interface

Benedetti

Torelli²,

Luches³

et al. 2006

Surface Science

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“…From the instant such an interface is formed, oxygen begins to displace and chemically reduce the aluminum so as to form CoO at the interfacial layer [267][268][269], which in turn causes a stoichiometric deficiency in the Al 2 O 3 matrix. The end result is a picture of the interface best described as Co/CoO/AlO x /Al 2 O 3 .…”

Section: Interfaces With Oxides: Oxidation/reduction Reactivitymentioning

confidence: 99%

Interface effects in spin-polarized metal/insulator layered structures

Velev

Dowben

Tsymbal

et al. 2008

Surface Science Reports

113

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Recent advances in thin-film deposition techniques, such as molecular beam epitaxy and pulsed laser deposition, have allowed for the manufacture of heterostructures with nearly atomically abrupt interfaces. Although the bulk properties of the individual heterostructure components may be well-known, often the heterostructures exhibit novel and sometimes unexpected properties due to interface effects. At heterostructure interfaces, lattice structure, stoichiometry, interface electronic structure (bonding, interface states, etc.), and symmetry all conspire to produce behavior different from the bulk constituents. This review discusses why knowledge of the electronic structure and composition at the interfaces is pivotal to the understanding of the properties of heterostructures, particularly the (spin polarized) electronic transport in (magnetic) tunnel junctions.

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“…12,18 A similar structure is expected for NiO(001)/Au(001) but is not analyzed experimentally so far. Concerning Au deposition on NiO(001) substrates, it was reported that the Au grew initially in a two-dimensional (2D) mode and then took a form of 3D islands [19][20][21] and a remarkable chemical reduction of the NiO occurred at the interface. 19,21 It must be, here, noted that the growth mode a) Present address: Fuji Springs Co., Inc. 165-51, Wadayamacho, Tsutsue, Asago, 669-5265 Japan.…”

Section: Introductionmentioning

confidence: 99%

The atomic and electronic structures of NiO(001)/Au(001) interfaces

Visikovskiy

Mitsuhara

Hazama

et al. 2013

The Journal of Chemical Physics

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The atomic and electronic structures of NiO(001)∕Au(001) interfaces were analyzed by high-resolution medium energy ion scattering (MEIS) and photoelectron spectroscopy using synchrotron-radiation-light. The MEIS analysis clearly showed that O atoms were located above Au atoms at the interface and the inter-planar distance of NiO(001)∕Au(001) was derived to be 2.30 ± 0.05 Å, which was consistent with the calculations based on the density functional theory (DFT). We measured the valence band spectra and found metallic features for the NiO thickness up to 3 monolayer (ML). Relevant to the metallic features, electron energy loss analysis revealed that the bandgap for NiO(001)∕Au(001) reduced with decreasing the NiO thickness from 10 down to 5 ML. We also observed Au 4f lines consisting of surface, bulk, and interface components and found a significant electronic charge transfer from Au(001) to NiO(001). The present DFT calculations demonstrated the presence of an image charge beneath Ni atoms at the interface just like alkali-halide∕metal interface, which may be a key issue to explain the core level shift and band structure.

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The interface of Mn, Fe, Co and Au metal films on NiO(), investigated by photoemission and low energy electron diffraction

Cited by 37 publications

References 33 publications

Morphology and chemical activity at the Au/NiO interface

Morphology and chemical activity at the Au/NiO interface

Interface effects in spin-polarized metal/insulator layered structures

The atomic and electronic structures of NiO(001)/Au(001) interfaces

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