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Titles listScanning tunneling spectroscopy of the Abrikosov flux lattice from the clean toward the dirty limit
Titles listScanning tunneling spectroscopy of the Abrikosov flux lattice from the clean toward the dirty limit
Scientific Article
unige:115084 
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Scanning tunneling spectroscopy of the Abrikosov flux lattice from the clean toward the dirty limit |
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| Published in | Ultramicroscopy. 1992, vol. 42-44, p. 699-704 | |
| Abstract | Using a low-temperature scanning tunneling microscope, we have investigated the Abrikosov vortex lattice and its electronic structure on 2H-Nb₁₋ₓTaₓSe₂ single crystals for a range of Ta substitutions from x=0.00 to x=0.20 and with the magnetic field perpendicular to the basal plane. The material properties and in particular the electronic mean free path of 2H-Nb₁₋ₓTaₓSe₂ can be modified in a systematic manner by varying the Ta concentration. For all Ta substitutions considered, we show that the vortex lattice is aligned with the underlying atomic lattice. We find that the zero-bias conductance peak observed in the vortex core is strongly reduced both in intensity and spatial extent as x increases to 0.15, and vanishes when the Ta concentration reaches x=0.20. These results show for the first time the progressive destruction of the vortex core conductance peak with increasing disorder in a type-II superconductor. | |
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Article (Published version) (3 MB) - Limited access to UNIGE Other version: http://linkinghub.elsevier.com/retrieve/pii/030439919290345K |
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| Structures | ||
| Citation (ISO format) | RENNER, Christoph et al. Scanning tunneling spectroscopy of the Abrikosov flux lattice from the clean toward the dirty limit. In: Ultramicroscopy, 1992, vol. 42-44, p. 699-704. https://archive-ouverte.unige.ch/unige:115084 |
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