DOI: 10.1063/1.122630. Quasi-ideal strontium titanate crystal surfaces through formation of strontium hydroxide

Quasi-ideal strontium titanate crystal surfaces through formation of strontium hydroxide

10.1063/1.122630

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

In recent years, well-defined and nearly perfect single crystal surfaces of oxide perovskites have become increasingly important. A single terminated surface is a prerequisite for reproducible thin film growth and fundamental growth studies. In this work, atomic and lateral force microscopy have been used to display different terminations of SrTiO3. We observe hydroxylation of the topmost SrO layer after immersion of SrTiO3 in water, which is used to enhance the etch-selectivity of SrO relative to TiO2 in a buffered HF solution. We reproducibly obtain perfect and single terminated surfaces, irrespective of the initial state of polished surfaces and the pH value of the HF solution. This approach to the problem might be used for a variety of multi-component oxide single crystals. True two-dimensional reflection high-energy electron diffraction intensity oscillations are observed during homo epitaxial growth using pulsed laser deposition on these surfaces.

Bibliography

Koster, G., Kropman, B. L., Rijnders, G. J. H. M., Blank, D. H. A., & Rogalla, H. (1998). Quasi-ideal strontium titanate crystal surfaces through formation of strontium hydroxide. Applied Physics Letters, 73(20), 2920â2922.

Authors 5

Gertjan Koster (first)
Boike L. Kropman (additional)
Guus J. H. M. Rijnders (additional)
Dave H. A. Blank (additional)
Horst Rogalla (additional)

References 21 Referenced 669

{'key': '2024020315164410700_r1'}
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{'key': '2024020315164410700_r4'}
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10.1016/S0169-4332(97)00227-4 / Appl. Surf. Sci. (1997)
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10.1016/0368-2048(91)85005-E / J. Electron Spectrosc. Relat. Phenom. (1991)
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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 9:31 a.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 10:16 a.m.)
Indexed	4 days, 7 hours ago (Aug. 23, 2025, 9:32 p.m.)
Issued	26 years, 9 months ago (Nov. 16, 1998)
Published	26 years, 9 months ago (Nov. 16, 1998)
Published Print	26 years, 9 months ago (Nov. 16, 1998)

Funders 0

None

BibTeX

@article{Koster_1998, title={Quasi-ideal strontium titanate crystal surfaces through formation of strontium hydroxide}, volume={73}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.122630}, DOI={10.1063/1.122630}, number={20}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Koster, Gertjan and Kropman, Boike L. and Rijnders, Guus J. H. M. and Blank, Dave H. A. and Rogalla, Horst}, year={1998}, month=nov, pages={2920–2922} }

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