Growth of platinum on TiO2- and SrO-terminated SrTiO3(100)

Polli, Andrew D.; Wagner, Thomas; Gemming, Thomas; Rühle, M.

doi:10.1016/s0039-6028(99)01233-9

Cited by 82 publications

(79 citation statements)

References 13 publications

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“…The calculated results of relative displacements of the nearsurface layers give us an impression that both types of ATiO 3 (001) surfaces show a reduction in interlayer distance d 12 and an expansion in d 23 . Moreover, for AO terminations, the largest reduction in relative displacements between the first three layers ( d 12 + d 23 ) is found on the CaTiO 3 (001) surface by 6.65%, and the smallest one (2.3%) is on the BaTiO 3 surface.…”

Section: Surface Relaxationmentioning

confidence: 91%

Ab initio study of ATiO₃ (001) surfaces

Wang

Cui

et al. 2009

Surface & Interface Analysis

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The AO and TiO 2 terminations have been constructed for the ATiO 3 (001) surface. The cleavage and surface energies, surface grand potential and surface relaxation have been calculated for the two types of terminations using ab initio plane waves ultrasoft pseudopotential method based on local density approximation. The results show that, for the AO terminations, the CaTiO 3 surface corresponds to the lowest surface energies; the TiO 2 termination of BaTiO 3 (001) surface is more easily constructed; however, the TiO 2 termination for CaTiO 3 and SrTiO 3 (001) surfaces is unstable compared to theirAO terminations. The AO termination is stable in an O-and A-rich environment; however, its complementary TiO 2 termination is stable in O-and A-poor conditions. Moreover, in the range of the accessible value of µ O , only the AO terminations are likely to be observed.

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Section: Surface Relaxationmentioning

confidence: 91%

Ab initio study of ATiO₃ (001) surfaces

Wang

Cui

et al. 2009

Surface & Interface Analysis

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“…The surface structure can be rather complex and many studies, both theoretical and experimental, have contributed to its understanding. The STO perovskite structure gives alternating TiO 2 and SrO planes in the (001) direction. Special attention has been paid to the three main surface planes, (100), (110) and (111), but also to higher index planes.…”

Section: Introductionmentioning

confidence: 99%

Orientation‐dependent surface composition of in situ annealed strontium titanate

Zagonel

Barrett

Renault

et al. 2008

Surface & Interface Analysis

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The surface composition of polycrystalline niobium-doped strontium titanate (SrTiO 3 : Nb) is studied using X-ray photoelectron emission microscopy (XPEEM) for many grain orientations in order to characterise the surface chemistry with high spatial resolution. The surface sensitivity is maximised by the use of soft X-ray synchrotron radiation (SR). The grain orientation is determined by electron backscattering diffraction (EBSD). Stereographic plots are used to show the correlation between surface composition and orientation for several grains. Predominant surface terminations are assigned to major orientations.

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“…Despite their technological importance, relatively few studies have succeeded in obtaining an atomic level understanding of these interfaces. Pt/SrTiO 3 thin film heterostructures are an ideal model system [10][11][12][13]. SrTiO 3 is an incipient ferroelectric with the cubic perovskite structure and it has a small lattice mismatch with Pt (~ 0.4 % at room temperature).…”

mentioning

confidence: 99%

“…This thickness dependence is commonly modeled by an interfacial capacitance with a lower permittivity than the "bulk" of the film [6,23], but its origins are not understood. The goal of the present paper is therefore to determine the atomic structure of (111) SrTiO 3 /Pt interfaces [11] with the ultimate objective of gaining an improved understanding of their role in controlling film orientation and dielectric properties.…”

mentioning

confidence: 99%

Atomic structure of (111) SrTiO3∕Pt interfaces

Schmidt

Klenov

Keane

et al. 2006

Applied Physics Letters

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Atomic resolution high-angle annular dark field (HAADF) imaging in scanning transmission electron microscopy was used to investigate the interface atomic structure of epitaxial, (111) oriented SrTiO3 films on epitaxial Pt electrodes grown on (0001) sapphire. The cube-on-cube orientation relationship of SrTiO3 on Pt was promoted by the use of a Ti adhesion layer underneath the Pt electrode. While a Ti-rich Pt surface was observed before SrTiO3 growth, HAADF images showed an atomically abrupt SrTiO3∕Pt interface with no interfacial layers. The SrTiO3 films contained two twin variants that were related by a 180° rotation about the ⟨111⟩ surface normal. HAADF images showed two different interface atomic arrangements for the two twins. The role of Ti in promoting (111) epitaxy and the implications for the dielectric properties are discussed.

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Growth of platinum on TiO2- and SrO-terminated SrTiO3(100)

Cited by 82 publications

References 13 publications

Ab initio study of ATiO₃ (001) surfaces

Ab initio study of ATiO₃ (001) surfaces

Orientation‐dependent surface composition of in situ annealed strontium titanate

Atomic structure of (111) SrTiO3∕Pt interfaces

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Growth of platinum on TiO2- and SrO-terminated SrTiO3(100)

Cited by 82 publications

References 13 publications

Ab initio study of ATiO3 (001) surfaces

Ab initio study of ATiO3 (001) surfaces

Orientation‐dependent surface composition of in situ annealed strontium titanate

Atomic structure of (111) SrTiO3∕Pt interfaces

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Product

Resources

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Ab initio study of ATiO₃ (001) surfaces

Ab initio study of ATiO₃ (001) surfaces