STM probing of local oscillations of the Fano-Kondo effect: a Doniach-Sunjic approach for the Kondo peak
Carregando...
Data
2009-04-01
Autores
Seridonio, A. C.
Oliveira, L. N.
Yoshida, M. [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Física
Resumo
The use of the scanning tunneling microscope (STM) for the investigation of Kondo adatoms on normal metallic surfaces reveals a Fano-Kondo behavior of the conductance as a function of the tip bias. In this work, the Doniach-Sunjic expression is used to describe the Kondo peak and we analyze the effect of a complex Fano phase, arising from an external magnetic field, on the conductance pattern. It is demonstrated that such phase generates local oscillations of the Fano-Kondo line shape and can lead to the suppression of anti-resonances.
Descrição
Palavras-chave
STM (Scanning Tunneling Microscope), magnetic impurities, Kondo effect
Como citar
Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 39, n. 1a, p. 226-229, 2009.