Spatially selective and reversible doping control in cuprate films

Seongshik Oh, Joseph A. Bonetti, Kevin Inderhees, D. J. Van Harlingen, J. N. Eckstein

Research output: Contribution to journalArticlepeer-review


We describe a reversible, spatially controlled doping method for cuprate films. The technique has been used to create superconductor-antiferromagnetic insulator-superconductor (S-AFI-S) junctions and optimally doped superconductor-underdoped superconductor-optimally doped superconductor cuprate structures. We demonstrate how the S-AFI-S structure can be employed to reliably measure the transport properties of the antiferromagnetic insulator region at cryogenic temperatures using the superconductors as seamless electrical leads. We also discuss applied and fundamental issues which may be addressed with the structures created with this doping method. Although it is implemented on a cuprate film (YBa2 Cu3 O7-δ) in this work, the method can also be applied to any mixed-valence transition metal oxide whose physical properties are determined by oxygen content.

Original languageEnglish (US)
Article number231911
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Issue number23
StatePublished - 2005

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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