Paper
1 March 1992 Synthesis and transport properties of a-axis YBa2Cu3O7/PrBa2Cu3O7 superlattices
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Abstract
We report recent results on the synthesis and transport properties of a-axis oriented YBa2Cu307/ PrBa2Cu307 (YBCO/ PBCO) superlattices. A-axis oriented YBCO is of great interest in fabricating sandwich tunnel junctions since the coherence length in this direction is much greater than that in the caxis direction. There have been reports of supercurrent in YBCO/PBCO/YBCO junctions across up to 1500Å of PBCO.1,2 We use the YBCO/PBCO multilayer system to investigate the decoupling length of the YBCO across PBCO by changing the modulation wavelength. The resistive transitions of these superlattices in magnetic field show a crossover temperature above which they are insensitive to magnetic fields and below which broadening occurs; this may be related to the disappearance of the coupling between YBCO layers above T*.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
C. B. Eom "Synthesis and transport properties of a-axis YBa2Cu3O7/PrBa2Cu3O7 superlattices", Proc. SPIE 1597, Progress in High-Temperature Superconducting Transistors and Other Devices II, (1 March 1992); https://doi.org/10.1117/12.2321834
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KEYWORDS
Superlattices

Magnetism

Modulation

Multilayers

Superconductors

Analytical research

Crystals

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