Probing the local effects of magnetic impurities on superconductivity

Ali Yazdani, B. A. Jones, C. P. Lutz, M. F. Crommie, D. M. Eigler

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337 Scopus citations

Abstract

The local effects of isolated magnetic adatoms on the electronic properties of the surface of a superconductor were studied with a low- temperature scanning tunneling microscope. Tunneling spectra obtained near magnetic adsorbates reveal the presence of excitations within the superconductor's energy gap that can be detected over a few atomic diameters around the impurity at the surface. These excitations are locally asymmetric with respect to tunneling of electrons and holes. A model calculation based on the Bogoliubov-de Gennes equations can be used to understand the details of the local tunneling spectra.

Original languageEnglish (US)
Pages (from-to)1767-1770
Number of pages4
JournalScience
Volume275
Issue number5307
DOIs
StatePublished - Mar 21 1997
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General

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    Yazdani, A., Jones, B. A., Lutz, C. P., Crommie, M. F., & Eigler, D. M. (1997). Probing the local effects of magnetic impurities on superconductivity. Science, 275(5307), 1767-1770. https://doi.org/10.1126/science.275.5307.1767