Kondo Effect in Self-Assembled Manganese Phthalocyanine Monolayer on Pb Islands

¹Institute of Physics, Chinese Academy of Sciences, Beijing 100190 ²Department of Physics, Tsinghua University, Beijing 100084

Received Date: April 05, 2010

Published Date: July 31, 2010

Abstract

The Kondo effect in two-dimensional manganese phthalocyanine (MnPc) self-assembled monolayer films on Pb(111) islands is studied by low-temperature scanning tunneling microscopy. Variation of the Kondo temperature from 50 K to 300 K at different molecule adsorption sites is revealed. It is shown that the variation is mainly due to the change in the width of d orbital, rather than the shift of its energy. The two-dimensional dI/dV mapping reveals the periodic modulation of the Kondo resonance in the self-assembled MnPc monolayer.

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