DOI: 10.1063/1.4773052. Preparation of atomically flat SrTiO3 surfaces using a deionized-water leaching and thermal annealing procedure

Preparation of atomically flat SrTiO3 surfaces using a deionized-water leaching and thermal annealing procedure

10.1063/1.4773052

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

We report that a deionized water leaching and thermal annealing technique can be effective for preparing atomically flat and singly terminated surfaces of single crystalline SrTiO3 substrates. After a two-step thermal-annealing and deionized-water leaching procedure, topography measured by atomic force microscopy shows the evolution of substrates from a rough to step-terraced surface structure. Lateral force microscopy confirms that the atomically flat surfaces are singly terminated. Moreover, this technique can be used to remove excessive strontium oxide or hydroxide composites segregated on the SrTiO3 surface. This acid-etchant-free technique facilitates the preparation of atomically aligned SrTiO3 substrates, which promotes studies on two-dimensional physics of complex oxide interfaces.

Bibliography

Connell, J. G., Isaac, B. J., Ekanayake, G. B., Strachan, D. R., & Seo, S. S. A. (2012). Preparation of atomically flat SrTiO3 surfaces using a deionized-water leaching and thermal annealing procedure. Applied Physics Letters, 101(25).

Authors 5

J. G. Connell (first)
B. J. Isaac (additional)
G. B. Ekanayake (additional)
D. R. Strachan (additional)
S. S. A. Seo (additional)

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Dates

Type	When
Created	12 years, 8 months ago (Dec. 21, 2012, 10:40 p.m.)
Deposited	2 years, 2 months ago (June 17, 2023, 12:04 p.m.)
Indexed	3 weeks, 5 days ago (Aug. 2, 2025, 12:11 a.m.)
Issued	12 years, 8 months ago (Dec. 17, 2012)
Published	12 years, 8 months ago (Dec. 17, 2012)
Published Online	12 years, 8 months ago (Dec. 21, 2012)
Published Print	12 years, 8 months ago (Dec. 17, 2012)

Funders 1

National Science Foundation 10.13039/100000001
Region: Americas
gov (National government)
Labels4
1. U.S. National Science Foundation
2. NSF
3. US NSF
4. USA NSF
Awards1
1. EPS-0814194

BibTeX

@article{Connell_2012, title={Preparation of atomically flat SrTiO3 surfaces using a deionized-water leaching and thermal annealing procedure}, volume={101}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.4773052}, DOI={10.1063/1.4773052}, number={25}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Connell, J. G. and Isaac, B. J. and Ekanayake, G. B. and Strachan, D. R. and Seo, S. S. A.}, year={2012}, month=dec }

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