Vortex-core structure observed with a scanning tunneling microscope

H. F. Hess, R. B. Robinson, and J. V. Waszczak
Phys. Rev. Lett. 64, 2711 – Published 28 May 1990
PDFExport Citation

Abstract

The superconducting-vortex-core spectra show a zero-bias peak which splits within a coherence length of the core. Further away from the core these split peaks merge gradually with the gap edge and give a direct local measure of the superfluid velocity. The vortex-core states are imaged both at the Fermi energy and just below the gap to reveal two different sixfold star-shaped structures. The anisotropy and size of these images may be a consequence of the crystalline band structure with its charge-density-wave gap as well as the interaction of the neighboring vortices of the Abrikosov flux lattice.

  • Received 28 December 1989

DOI:https://doi.org/10.1103/PhysRevLett.64.2711

©1990 American Physical Society

Authors & Affiliations

H. F. Hess, R. B. Robinson, and J. V. Waszczak

  • AT&T Bell Laboratories, 600 Mountain Avenue, Murray Hill, New Jersey 07974

References (Subscription Required)

Click to Expand
Issue

Vol. 64, Iss. 22 — 28 May 1990

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×