MgB2 tunnel junctions and SQUIDs

Brinkman, A. and Rowell, J.M. (2007) MgB2 tunnel junctions and SQUIDs. Physica C: Superconductivity, 456 (1-2). pp. 188-195. ISSN 0921-4534

PDF
Restricted to UT campus only: Request a copy
577Kb

Abstract:	Recent advances in the realization and understanding of MgB2 tunnel junctions and SQUIDs are surveyed. High quality MgB2 junctions with suitable tunnel barriers have been realized based on both oriented and epitaxial thin MgB2 films. Multiband transport properties, such as the existence of two energy gaps, phonon spectra and anisotropy have been investigated with these junctions. We review the suitability of different barrier materials and recent advances in obtaining reproducible all-MgB2 Josephson junctions for superconducting electronic circuitry. The development of epitaxial thin films has also led to high-quality multiband MgB2 SQUIDs and magnetometers that operate at high temperatures. The multiband nature of MgB2 provides new phenomena such as the Leggett mode. Manipulating the different phases of the condensates could lead to novel MgB2 devices with phase degrees of freedom.
Item Type:	Article
Copyright:	© 2007 Elsevier B.V.
Faculty:	Science and Technology (TNW)
Research Group:	Low Temperatures - Biomagnetism (LT)
Link to this item:	http://purl.utwente.nl/publications/75086
Official URL:	http://dx.doi.org/10.1016/j.physc.2007.01.019
Export this item as:	BibTeX EndNote HTML Citation Reference Manager

Repository Staff Only: item control page

Metis ID: 242279