Single Spin Transport Spectroscopy - Current Blockade and Spin Decay

Details Single Spin Transport Spectroscopy - Current Blockade and Spin Decay Single Spin Transport Spectroscopy - Current Blockade and Spin Decay

2009-06-10

arxiv.org/abs/0906.1986v2

Appl. Phys. Lett. 95, 152104 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures, revised version

Scientific paper

10.1063/1.3243693

We present a theory of a single-electron transistor exchange-coupled to a localized spin. We show how to gain detailed quantitative knowledge about the attached spin such as spin size, exchange coupling strength, Land\'e g-factor, and spin decay time $T_1$ by utilizing a robust blockade phenomenon of DC magnetotransport with accompanying noise enhancement. Our studies are of particular relevance to spin-resolved scanning single-electron transistor microscopy, electronic transport through nanomagnets, and the effect of hyperfine interaction on transport electrons by surrounding nuclear spins.

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