ELNES study of chemical solution deposited <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si0036.gif" overflow="scroll"><mml:mi>SrO</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:msub><mml:mrow><mml:mi>SrTiO</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mi>n</mml:mi></mml:mrow></mml:msub></mml:math> Ruddlesden–Popper films: Experiment and simulation

Riedl, Thomas; Gemming, Thomas; Weißbach, Torsten; Seifert, Gotthard; Gutmann, Emanuel; Zschornak, Matthias; Meyer, Dirk C.; Gemming, Sibylle

doi:10.1016/j.ultramic.2009.09.001

Cited by 6 publications

(3 citation statements)

References 50 publications

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“…The band gaps of the oxides SrO and strontium titanate are given by 3.4 eV and 1.9 eV, respectively, with the usual underestimation of DFT [69]. As the strontium titanate character increases in the series SrO(SrTiO 3 ) n , a trend appears in the series to smaller band gaps, as expected [10,70]. The band gaps are given with 2.01 eV, 1.99 eV, and 1.98 eV for RP1, RP2, and RP3, respectively.…”

Section: Density Of Statessupporting

confidence: 53%

Interactions of Ruddlesden-Popper Phases and Migration-Induced Field-Stabilized Polar Phase in Strontium Titanate

et al. 2021

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This work focuses on the validation of a possible connection of the known Ruddlesden-Popper (RP) phases and the novel concept of the migration-induced field-stabilized polar (MFP) phase. To study this subject, model structures of RP phases in bulk strontium titanate are analyzed by means of density functional theory (DFT). The obtained geometries are compared to experimental MFP data. Good agreement can be found concerning atomic displacements in the pm range and lattice strain inferred by the RP phases. Looking at the energy point of view, the defect structures are on the convex hull of the Gibb’s free energy. Although the dynamics to form the discussed defect models are not addressed in detail, the interplay and stability of the described defect model will add to the possible structure scenarios within the near-surface region of strontium titanate. As a result, it can be suggested that RP phases generally favor the MFP formation.

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Section: Density Of Statessupporting

confidence: 53%

Interactions of Ruddlesden-Popper Phases and Migration-Induced Field-Stabilized Polar Phase in Strontium Titanate

et al. 2021

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“…Such structural alternation is also similar to the case in oxide RP structure . It would be helpful if the side view structure can be directly observed experimentally, as the cases in cross-sectional oxide thin films. − However, in the 2D NS system, only vertical view can be obtained. Owing to such limitation, further information has to be dug out by quantitative intensity analysis and image simulation.…”

mentioning

confidence: 56%

“…So far, all-inorganic RP phase halide perovskites have not been discovered yet. In addition, as to the atomic-scale characterization of RP phase, transmission electron microscopy (TEM) has only been demonstrated on the RP phase of oxide perovskites. − By contrast, atomic-level characterization of RP phase halide perovskites is still missing, no matter hybrid or inorganic cases.…”

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confidence: 99%

Ruddlesden–Popper Phase in Two-Dimensional Inorganic Halide Perovskites: A Plausible Model and the Supporting Observations

2017

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A Ruddlesden-Popper (RP) type structure is well-known in oxide perovskites and is related to many interesting properties such as superconductivity and ferroelectricity. However, the RP phase has not yet been discovered in inorganic halide perovskites. Here, we report the direct observation of unusual structure in two-dimensional CsPbBr nanosheets which could be interpreted as the RP phase based on model simulations. Structural details of the plausible RP domains and domain boundaries between the RP and conventional perovskite phases have been revealed on the atomic level using aberration-corrected scanning transmission electron microscopy. The finding marks a major advance toward future inorganic halide RP phase synthesis and theoretical modeling, as well as unraveling their structure-property relationship.

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Electron Energy Loss Spectroscopy as an Experimental Probe for the Crystal Structure and Electronic Situation of Solids

Hofmann¹

2012

Methods in Physical Chemistry

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ELNES study of chemical solution deposited SrO(SrTiO3)n Ruddlesden–Popper films: Experiment and simulation

Cited by 6 publications

References 50 publications

Interactions of Ruddlesden-Popper Phases and Migration-Induced Field-Stabilized Polar Phase in Strontium Titanate

Interactions of Ruddlesden-Popper Phases and Migration-Induced Field-Stabilized Polar Phase in Strontium Titanate

Ruddlesden–Popper Phase in Two-Dimensional Inorganic Halide Perovskites: A Plausible Model and the Supporting Observations

Electron Energy Loss Spectroscopy as an Experimental Probe for the Crystal Structure and Electronic Situation of Solids

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