Mg2TiO4 as a novel substrate for high-temperature superconducting thin films
Haefke, H. ; Lang, H. P. ; Sum, R. ; Güntherodt, H.-J. ; Berthold, L. ; Hesse, D.
Woodbury, NY : American Institute of Physics (AIP)
Published 1992
Woodbury, NY : American Institute of Physics (AIP)
Published 1992
| ISSN: |
1077-3118
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|---|---|
| Source: |
AIP Digital Archive
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| Topics: |
Physics
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| Notes: |
Single-crystalline Mg2TiO4 layers have been employed as a novel substrate material for superconducting YBa2Cu3O7−δ (YBCO) thin films. The Mg2TiO4 substrate layers have been grown on MgO cleavage faces by a solid-state reaction between the MgO crystal and TiO2 vapor. The structure and morphology of laser-deposited YBCO thin films have been studied by x-ray diffraction, transmission electron microscopy, electron diffraction, and scanning tunneling microscopy. YBCO has been grown on Mg2TiO4(001) with the epitaxial relationship [100](001) YBCO (parallel)[100](001)Mg2TiO4 and (considering twins)(parallel)[010](001)Mg2TiO4. The film morphology is characterized by growth spirals originating from screw dislocations.
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| Type of Medium: |
Electronic Resource
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| URL: |