Disorder Induced Effects on the Critical Current Density of Iron Pnictide BaFe 1.8 Co 0.2 As 2 single crystals - Condensed Matter > SuperconductivityReportar como inadecuado




Disorder Induced Effects on the Critical Current Density of Iron Pnictide BaFe 1.8 Co 0.2 As 2 single crystals - Condensed Matter > Superconductivity - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: Investigating the role of disorder in superconductors is an essential part ofcharacterizing the fundamental superconducting properties as well as assessingpotential applications of the material. In most cases, the informationavailable on the defect matrix is poor, making such studies difficult, but thesituation can be improved by introducing defects in a controlled way, asprovided by neutron irradiation. In this work, we analyze the effects ofneutron irradiation on a BaFe$ {1-x}$Co$ x$$ 2$As$ 2$ single crystal. Wemainly concentrate on the magnetic properties which were determined bymagnetometry. Introducing disorder by neutron irradiation leads to significanteffects on both the reversible and the irreversible magnetic properties, suchas the transition temperature, the upper critical field, the anisotropy, andthe critical current density. The results are discussed in detail by comparingthem with the properties in the unirradiated state.



Autor: M. Zehetmayer, M. Eisterer, H. W. Weber, J. Jiang, J. D. Weiss, A. Yamamoto, A. A. Polyanskii, E. E. Hellstrom, D. C. Larbalestie

Fuente: https://arxiv.org/







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