Title :
Investigations on the c-axis transport properties of YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta///PrBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// thin film superlattices
Author :
Schattke, A. ; Jakob, G. ; Martinez, J.C. ; Adrian, H.
Author_Institution :
Johannes Gutenberg Univ., Mainz, Germany
fDate :
6/1/1997 12:00:00 AM
Abstract :
In this paper we report on the c-axis transport properties of YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta///PrBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// superlattices. We describe the preparation, characterisation and patterning of thin film superlattices into suitable mesa structures via standard photolithography. Resistive measurements were carried out which point towards an inhomogenous current distribution in the normal state resistance. Below T/sub c/, the c-axis properties determine the temperature dependent resistance. Resonant tunneling is observed with no Josephson current.
Keywords :
Josephson effect; barium compounds; high-temperature superconductors; praseodymium compounds; sputter deposition; sputtered coatings; superconducting superlattices; superconducting thin films; superlattices; yttrium compounds; HTSC; Josephson effect existence; Josephson junctions; YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta///PrBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// superlattices; YBaCuO-PrBaCuO; c-axis transport properties; inhomogenous current distribution; ion beam etched; mesa structures; normal state resistance; patterning; photolithography; preparation; resistive measurements; resonant tunneling; sputtered films; stacked series arrays; temperature dependent resistance; thin film superlattices; Insulation; Josephson effect; Satellites; Sputtering; Substrates; Superconducting devices; Superconducting epitaxial layers; Superlattices; Transistors; X-ray diffraction;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
