MgB2 thin films

Abstract

Great progress has been made in the deposition ofMgB2 thin films since the discovery of superconductivity at 39 K in thistwo-band superconductor. In this review, deposition techniques used forMgB2 are described, with an emphasis on their meeting the critical requirements for growing high-qualityMgB2 thin films. The availability of these thin films has contributedsignificantly to the research on the two-gap superconductivity inMgB2.MgB2 thin films have also been investigated for applications in high-field magnets,superconducting electronic devices and circuits, and radio-frequency cavities used inaccelerators.