Probing the local effects of magnetic impurities on superconductivity

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

doi:10.1126/science.275.5307.1767

Probing the local effects of magnetic impurities on superconductivity

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

Research output: Contribution to journal › Article › peer-review

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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 language	English (US)
Pages (from-to)	1767-1770
Number of pages	4
Journal	Science
Volume	275
Issue number	5307
DOIs	https://doi.org/10.1126/science.275.5307.1767
State	Published - Mar 21 1997
Externally published	Yes

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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.",

author = "Ali Yazdani and Jones, \{B. A.\} and Lutz, \{C. P.\} and Crommie, \{M. F.\} and Eigler, \{D. M.\}",

year = "1997",

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AU - Yazdani, Ali

AU - Jones, B. A.

AU - Lutz, C. P.

AU - Crommie, M. F.

AU - Eigler, D. M.

PY - 1997/3/21

Y1 - 1997/3/21

N2 - 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.

AB - 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.

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UR - https://www.scopus.com/inward/citedby.url?scp=0030909823&partnerID=8YFLogxK

U2 - 10.1126/science.275.5307.1767

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SP - 1767

EP - 1770

JO - Science

JF - Science

IS - 5307

ER -

Probing the local effects of magnetic impurities on superconductivity

Abstract

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