Published November 11, 2013
| Version v1
Journal article
High-field critical current enhancement by irradiation induced correlated and random defects in (Ba0.6K0.4)Fe2As2
Creators
- 1. Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607 (United States)
- 2. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- 3. Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008 (United States)
- 4. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- 5. National Laboratory of Solid State Microstructures, Department of Physics, Center for Superconducting Physics and Materials, Nanjing University, Nanjing 210093 (China)
Description
Mixed pinning landscapes in superconductors are emerging as an effective strategy to achieve high critical currents in high, applied magnetic fields. Here, we use heavy-ion and proton irradiation to create correlated and point defects to explore the vortex pinning behavior of each and combined constituent defects in the iron-based superconductor Ba0.6K0.4Fe2As2 and find that the pinning mechanisms are non-additive. The major effect of p-irradiation in mixed pinning landscapes is the generation of field-independent critical currents in very high fields. At 7 T ‖ c and 5 K, the critical current density exceeds 5 MA/cm2
Additional details
Identifiers
- DOI
- 10.1063/1.4829524;
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 103
- Journal Issue
- 20
- Journal Page Range
- p. 202601-202601.5
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45038775
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ADDITIVES; CRITICAL CURRENT; HEAVY IONS; IRON; IRON ARSENIDES; IRRADIATION; MAGNETIC FIELDS; MAGNETIC FLUX; MAGNETIZATION; POINT DEFECTS; PROTONS; SUPERCONDUCTIVITY
- Descriptors DEC
- ARSENIC COMPOUNDS; ARSENIDES; BARYONS; CHARGED PARTICLES; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; CURRENTS; ELECTRIC CONDUCTIVITY; ELECTRIC CURRENTS; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; HADRONS; IONS; IRON COMPOUNDS; METALS; NUCLEONS; PHYSICAL PROPERTIES; PNICTIDES; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS
Optional Information
- Notes
- (c) 2013 AIP Publishing LLC