Vortex-core structure observed with a scanning tunneling microscope.
作者： H. F. Hess , R. B. Robinson , J. V. Waszczak
DOI: 10.1103/PHYSREVLETT.64.2711
关键词: Electronic band structure 、 Anisotropy 、 Coherence length 、 Physics 、 Band gap 、 Vortex 、 Fermi energy 、 Scanning tunneling microscope 、 Condensed matter physics 、 Fermi level
摘要: The superconducting-vortex-core spectra show a zero-bias peak which splits within coherence length of the core. Further away from core these split peaks merge gradually with gap edge and give direct local measure superfluid velocity. vortex-core states are imaged both at Fermi energy just below to reveal two different sixfold star-shaped structures. anisotropy size images may be consequence crystalline band structure its charge-density-wave as well interaction neighboring vortices Abrikosov flux lattice.
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