Experimental Test of the Numerical Renormalization Group Theory for Inelastic Scattering from Magnetic Impurities

Abstract

We present measurements of the phase coherence time \tauphi in quasi one-dimensional Au/Fe Kondo wires and compare the temperature dependence of \tauphi with a recent theory of inelastic scattering from magnetic impurities (Phys. Rev. Lett. 93, 107204 (2004)). A very good agreement is obtained for temperatures down to 0.2 $T_K$. Below the Kondo temperature $T_K$, the inverse of the phase coherence time varies linearly with temperature over almost one decade in temperature.

5 pages, 3 figures

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• Dephasing of Electrons in Mesoscopic Metal Wires
• Quantum Decoherence in Disordered Mesoscopic Systems
• Dephasing by extremely dilute magnetic impurities revealed by Aharonov-Bohm oscillations
• Theory of inelastic scattering from magnetic impurities
• Anomalous temperature dependence of the dephasing time in mesoscopic Kondo wires
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