Site-Specific Kondo Effect at Ambient Temperatures in Iron-Based Molecules | Zendy

Gao Li | Zendy; Wei Ji | Zendy; Y. B. Hu | Zendy; Zhihai Cheng | Zendy; Zhitao Deng | Zendy; Qinghe Liu | Zendy; Nan Jiang | Zendy; Xiao Lin | Zendy; Wei Guo | Zendy; Shixuan Du | Zendy; Werner A. Hofer | Zendy; Xiaoming Xie | Zendy; HongJun Gao | Zendy

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Site-Specific Kondo Effect at Ambient Temperatures in Iron-Based Molecules

Author(s) -

Gao Li,

Wei Ji,

Y. B. Hu,

Zhihai Cheng,

Zhitao Deng,

Qinghe Liu,

Nan Jiang,

Xiao Lin,

Wei Guo,

Shixuan Du,

Werner A. Hofer,

Xiaoming Xie,

HongJun Gao

Publication year - 2007

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.99.106402

Subject(s) - kondo effect , impurity , adsorption , coupling (piping) , materials science , molecule , resonance (particle physics) , condensed matter physics , range (aeronautics) , atmospheric temperature range , substrate (aquarium) , inductive coupling , chemical physics , atomic physics , physics , chemistry , thermodynamics , quantum mechanics , metallurgy , composite material , geology , oceanography

Kondo resonances are a very precise measure of spin-polarized transport through magnetic impurities. However, the Kondo temperature, indicating the thermal range of stability of the magnetic properties, is very low. By contrast, we find for iron phthalocyanine a Kondo temperature in spectroscopic measurements which is well above room temperature. It is also shown that the signal of the resonance depends strongly on the adsorption site of the molecule on a gold surface. Experimental data are verified by extensive numerical simulations, which establish that the coupling between iron states and states of the substrate depends strongly on the adsorption configuration.

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