Interfacial defects in YBa2Cu3O7{plus 45 degree rule}PrBa2Cu3O7-heterostructures on SrTiO3 substrates

C. L. Jia, B. Kabius, H. Soltner, U. Poppe, K. Urban

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The interfaces of YBa2Cu3O7{plus 45 degree rule}PrBa2Cu3O7-heterostructures grown epitaxially on [001]-SrTiO3 substrates were investigated by means of high-resolution electron microscopy and electron diffraction. Misfit dislocation arrays could be observed in the YBa2Cu3O7{plus 45 degree rule}PrBa2Cu3O7 interfaces and inside the first YBa2Cu3O7 layer close to the YBa2Cu3O7/SrTiO73 interface. In the PrBa2Cu3O7 layers a structural modulation was found near the interface. This is explained by the ordering of oxygen vacancies due to compressive strain induced by the adjoining YBa2Cu3O7 layers.

Original languageEnglish (US)
Pages (from-to)81-89
Number of pages9
JournalPhysica C: Superconductivity and its applications
Volume172
Issue number1-2
DOIs
StatePublished - Dec 1 1990

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High resolution electron microscopy
Oxygen vacancies
Dislocations (crystals)
Electron diffraction
Heterojunctions
Modulation
Defects
defects
Substrates
electron microscopy
electron diffraction
modulation
barium copper yttrium oxide
strontium titanium oxide
high resolution
oxygen
diffraction

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Jia, C. L. ; Kabius, B. ; Soltner, H. ; Poppe, U. ; Urban, K. / Interfacial defects in YBa2Cu3O7{plus 45 degree rule}PrBa2Cu3O7-heterostructures on SrTiO3 substrates. In: Physica C: Superconductivity and its applications. 1990 ; Vol. 172, No. 1-2. pp. 81-89.
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Interfacial defects in YBa2Cu3O7{plus 45 degree rule}PrBa2Cu3O7-heterostructures on SrTiO3 substrates. / Jia, C. L.; Kabius, B.; Soltner, H.; Poppe, U.; Urban, K.

In: Physica C: Superconductivity and its applications, Vol. 172, No. 1-2, 01.12.1990, p. 81-89.

Research output: Contribution to journalArticle

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AU - Jia, C. L.

AU - Kabius, B.

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AU - Poppe, U.

AU - Urban, K.

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AB - The interfaces of YBa2Cu3O7{plus 45 degree rule}PrBa2Cu3O7-heterostructures grown epitaxially on [001]-SrTiO3 substrates were investigated by means of high-resolution electron microscopy and electron diffraction. Misfit dislocation arrays could be observed in the YBa2Cu3O7{plus 45 degree rule}PrBa2Cu3O7 interfaces and inside the first YBa2Cu3O7 layer close to the YBa2Cu3O7/SrTiO73 interface. In the PrBa2Cu3O7 layers a structural modulation was found near the interface. This is explained by the ordering of oxygen vacancies due to compressive strain induced by the adjoining YBa2Cu3O7 layers.

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