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Article Dans Une Revue ACS Nano Année : 2017

Electrical Read-Out of a Single Spin Using an Exchange-Coupled Quantum Dot

Résumé

We present a new way of continuously reading-out the state of a single electronic spin. Our detection scheme is based on an exchange interaction between the electronic spin and a nearby read-out quantum dot. The coupling between the two systems results in a spin-dependent conductance through the read-out dot and establishes an all electrical and non-destructive single spin detection. With conductance variations up to 4% and read-out fidelities greater than 99.5%, this method represents an alternative to systems where spin to charge conversion cannot be implemented. Using a semi-classical approach, we present an asymetric exchange coupling model in good agreement with our experimental results.

Dates et versions

hal-01870127 , version 1 (07-09-2018)

Identifiants

Citer

Clément Godfrin, Stefan Thiele, Karim Ferhat, Svetlana Klyatskaya, Mario Ruben, et al.. Electrical Read-Out of a Single Spin Using an Exchange-Coupled Quantum Dot. ACS Nano, 2017, 11 (4), pp.3984 - 3989. ⟨10.1021/acsnano.7b00451⟩. ⟨hal-01870127⟩

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