# Anomalous conductance of a spin-1 quantum dot.

@article{Posazhennikova2005AnomalousCO, title={Anomalous conductance of a spin-1 quantum dot.}, author={Anna I. Posazhennikova and Piers Coleman}, journal={Physical review letters}, year={2005}, volume={94 3}, pages={ 036802 } }

We interpret the recent observation of a zero-bias anomaly in spin-1 quantum dots in terms of an underscreened Kondo effect. Although spin-1 quantum dots are expected to undergo a two-stage quenching effect, in practice the log-normal distribution of Kondo temperatures leads to a broad temperature region dominated by underscreened Kondo physics. General arguments, based on the asymptotic decoupling between the partially screened moment and the leads, predict a singular temperature and voltage…

## 31 Citations

Renormalization group analysis of a spin-1 Kondo dot: Nonequilibrium transport and relaxation dynamics

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We study nonequilibrium transport through a spin-1 Kondo dot in a local magnetic field. To this end we perform a two-loop renormalization group analysis in the weak-coupling regime yielding analytic…

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- 2007

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- 2018

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- Physics
- 2006

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- PhysicsJournal of physics. Condensed matter : an Institute of Physics journal
- 2017

Checking the electron-electron interaction self-energy and magnetic susceptibility, it is verified the ground state at large J is an under-screening Kondo state composed of a Fermi liquid with a residual spin 1/2, which is consistent with the 'singular Fermani liquid state' in the literature.