Otro
STM probing of local oscillations of the Fano-Kondo effect: a Doniach-Sunjic approach for the Kondo peak
Registro en:
Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 39, n. 1a, p. 226-229, 2009.
0103-9733
10.1590/S0103-97332009000200017
S0103-97332009000200017
WOS:000267893800017
S0103-97332009000200017.pdf
Autor
Seridonio, A. C.
Oliveira, L. N.
Yoshida, M.
Resumen
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. Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)