Scientific article
English

Low-energy structures in vortex core tunneling spectra in Bi2Sr2CaCu2O8+δ

Published inPhysica. C, Superconductivity, vol. 332, no. 1-4, p. 440-444
Publication date2000
Abstract

Scanning tunneling spectroscopy allows us to study the changes in the quasiparticle local density of states due to the presence of vortex cores in Bi2Sr2CaCu2O8+δ (BSCCO). The vortex core spectra are characterized by a gap-like structure similar to the pseudogap measured above Tc. We also observe small spectral structures inside the gap in the vortex cores. The observed low-energy structures are weaker than what one expects for localized quasiparticle excitations.

Keywords
  • Scanning tunneling spectroscopy
  • Mixed state
  • Low-energy structures
Research groups
Citation (ISO format)
HOOGENBOOM, Bart Wiebren et al. Low-energy structures in vortex core tunneling spectra in Bi2Sr2CaCu2O8+δ. In: Physica. C, Superconductivity, 2000, vol. 332, n° 1-4, p. 440–444. doi: 10.1016/S0921-4534(99)00720-0
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Identifiers
Journal ISSN0921-4534
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