Spatially resolved electrical characterization of a YBa2Cu 3O7-δ flux transformer

K. D. Husemann, R. Gross, R. P. Huebener, B. Roas

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


We report the spatially resolved transport properties of a three-layer YBa2Cu3O7-δ flux transformer using low-temperature scanning electron microscopy. The seven-turn spiral coil is fabricated using a crossover technology with SrTiO3 as an insulator. The different layers were patterned with shadow masks or optical lithography. We show that the insulating SrTiO3 film has no shorts and that the overlaying YBa2Cu3O7-δ spiral reveals a reduced zero resistance critical temperature at the steps and edges of the insulator.

Original languageEnglish
Pages (from-to)2871-2873
Number of pages3
JournalApplied Physics Letters
Issue number22
StatePublished - 1993
Externally publishedYes


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