Probing the local effects of magnetic impurities on superconductivity

被引：454

作者：

Yazdani, A ^{[1
]}

Jones, BA ^{[1
]}

Lutz, CP ^{[1
]}

Crommie, MF ^{[1
]}

Eigler, DM ^{[1
]}

机构：

[1] BOSTON UNIV,DEPT PHYS,BOSTON,MA 02215

来源：

SCIENCE | 1997年 / 275卷 / 5307期

关键词：

D O I：

10.1126/science.275.5307.1767

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页码：1767 / 1770

页数：4

共 21 条

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