Epitaxial growth of Nax CoO2 thin films by pulsed-laser deposition

Abstract

Single-phase thin films of Nax Co O2 have been grown epitaxially by pulsed-laser deposition technique. The growth conditions were studied based on the log p O2 -1T phase diagram of Co- O2 using different types of substrate materials. For Na0.58 Co O2, metallic behavior is found down to 4.2 K. © 2005 American Institute of Physics.