Morphology, orientation relationship, and stability analysis of Cu 2O nanoclusters on SrTiO3 (100)

Satyanarayana V N T Kuchibhatla, S. Y. Hu, Z. Q. Yu, V. Shutthanandan, Y. L. Li, P. Nachimuthu, W. Jiang, S. Thevuthasan, C. H. Henager, S. K. Sundaram

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Abstract

Reflection high energy electron diffraction, atomic force microscopy, and theoretical studies based on classical nucleation theory have been used to interpret the morphology, orientation relationship, and stability of Cu 2 O nanoclusters on SrTiO3 (100) (STO). We propose that the competing interfacial and elastic energies facilitate an in-plane rotation of the Cu2 O clusters by 45° with respect to the STO substrate and stabilize Cu2 O clusters on STO(100) with an orientation relationship of (001) Cu2 O // (001) SrTiO3 and 〈 100 〉 Cu2 O // 〈110〉SrTiO3. Our preliminary theoretical analysis also suggests that this particular orientation results in smaller critical nucleus sizes and lower nucleation barriers and also indicates a chemical potential (growth rate) dependence of the orientation relationship.

Original languageEnglish
Article number053111
JournalApplied Physics Letters
Volume95
Issue number5
DOIs
Publication statusPublished - 2009
Externally publishedYes

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nanoclusters
nucleation
interfacial energy
high energy electrons
electron diffraction
atomic force microscopy
nuclei
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Kuchibhatla, S. V. N. T., Hu, S. Y., Yu, Z. Q., Shutthanandan, V., Li, Y. L., Nachimuthu, P., ... Sundaram, S. K. (2009). Morphology, orientation relationship, and stability analysis of Cu 2O nanoclusters on SrTiO3 (100). Applied Physics Letters, 95(5), [053111]. https://doi.org/10.1063/1.3193530

Morphology, orientation relationship, and stability analysis of Cu 2O nanoclusters on SrTiO3 (100). / Kuchibhatla, Satyanarayana V N T; Hu, S. Y.; Yu, Z. Q.; Shutthanandan, V.; Li, Y. L.; Nachimuthu, P.; Jiang, W.; Thevuthasan, S.; Henager, C. H.; Sundaram, S. K.

In: Applied Physics Letters, Vol. 95, No. 5, 053111, 2009.

Research output: Contribution to journalArticle

Kuchibhatla, SVNT, Hu, SY, Yu, ZQ, Shutthanandan, V, Li, YL, Nachimuthu, P, Jiang, W, Thevuthasan, S, Henager, CH & Sundaram, SK 2009, 'Morphology, orientation relationship, and stability analysis of Cu 2O nanoclusters on SrTiO3 (100)', Applied Physics Letters, vol. 95, no. 5, 053111. https://doi.org/10.1063/1.3193530
Kuchibhatla, Satyanarayana V N T ; Hu, S. Y. ; Yu, Z. Q. ; Shutthanandan, V. ; Li, Y. L. ; Nachimuthu, P. ; Jiang, W. ; Thevuthasan, S. ; Henager, C. H. ; Sundaram, S. K. / Morphology, orientation relationship, and stability analysis of Cu 2O nanoclusters on SrTiO3 (100). In: Applied Physics Letters. 2009 ; Vol. 95, No. 5.
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AU - Kuchibhatla, Satyanarayana V N T

AU - Hu, S. Y.

AU - Yu, Z. Q.

AU - Shutthanandan, V.

AU - Li, Y. L.

AU - Nachimuthu, P.

AU - Jiang, W.

AU - Thevuthasan, S.

AU - Henager, C. H.

AU - Sundaram, S. K.

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