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

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

doi:10.1016/0921-4534(90)90646-V

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

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

Materials Research Institute (MRI)

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

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 language	English (US)
Pages (from-to)	81-89
Number of pages	9
Journal	Physica C: Superconductivity and its applications
Volume	172
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(90)90646-V
State	Published - Dec 1 1990

All Science Journal Classification (ASJC) codes

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

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

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.",

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AU - Jia, C. L.

AU - Kabius, B.

AU - Soltner, H.

AU - Poppe, U.

AU - Urban, K.

PY - 1990/12/1

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N2 - 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.

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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