Vortex pinning : a probe for nanoscale disorder in iron-based superconductors
| Autor: | S. Demirdis, Marcin Konczykowski, Dorothée Colson, N. R. Cejas Bolecek, Yanina Fasano, F. Rullier-Albenque, H. Pastoriza, C. J. van der Beek |
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| Přispěvatelé: | Laboratoire des Solides Irradiés (LSI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X), Laboratorio de Bajas Temperaturas (LBT), Consejo Nacional de Investigaciones Científicas y Técnicas., Service de physique de l'état condensé (SPEC - UMR3680), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Ecos-Sud A09E03 Triangle de la Physique 'MagCorPnic', Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
vortex lattice
Materials science Flux pinning FOS: Physical sciences 02 engineering and technology 01 natural sciences Atomic units Superconductivity (cond-mat.supr-con) Iron-based superconductors flux pinning Impurity Condensed Matter::Superconductivity 0103 physical sciences Electrical and Electronic Engineering 010306 general physics critical current Superconductivity Condensed matter physics Dopant Scattering Condensed Matter - Superconductivity scattering 021001 nanoscience & nanotechnology Condensed Matter Physics Electronic Optical and Magnetic Materials Vortex Magnetic field [PHYS.COND.CM-S]Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con] 74.25.Ha 74.25.Op 74.25.Sv 74.25.Uv 74.25.Wx 74.62.Bf heterogeneity 0210 nano-technology |
| Zdroj: | Proceedings of ECRYS 2011-International School and Workshop on Electronic Crystals ECRYS 2011-International School and Workshop on Electronic Crystals ECRYS 2011-International School and Workshop on Electronic Crystals, Aug 2011, Cargèse, France. pp.00000, ⟨10.1016/j.physb.2012.01.021⟩ |
| DOI: | 10.1016/j.physb.2012.01.021⟩ |
| Popis: | The pinning of quantized flux lines, or vortices, in the mixed state is used to quantify the effect of impurities in iron-based superconductors (IBS). Disorder at two length scales is relevant in these materials. Strong flux pinning resulting from nm-scale heterogeneity of the superconducting properties leads to the very disordered vortex ensembles observed in the IBS, and to the pronounced maximum in the critical current density jc at low magnetic fields. Disorder at the atomic scale, most likely induced by the dopant atoms, leads to "weak collective pinning" and a magnetic field-independent contribution jcoll. The latter allows one to estimate quasi-particle scattering rates. Comment: 4 pages; ECRYS 2011 - International School and Workshop on Electronic Crystals, Carg\`ese : France (2011) |
| Databáze: | OpenAIRE |
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