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- W2805961856 abstract "We describe measurements of spin-polarized tunnelling via discrete energy levels of single Aluminum grains. In high resistance samples ($sim GOmega$), the spin-polarized tunnelling current rapidly saturates as a function of the bias voltage. This indicates that spin-polarized current is carried only via the ground state and the few lowest in energy excited states of the grain. At the saturation voltage, the spin-relaxation rate $T_1^{-1}$ of the highest excited states is comparable to the electron tunnelling rate: $T_1^{-1}approx 1.5cdot 10^6 s^{-1}$ and $10^7s^{-1}$ in two samples. The ratio of $T_1^{-1}$ to the electron-phonon relaxation rate is in agreement with the Elliot-Yafet scaling, an evidence that spin-relaxation in Al grains is governed by the spin-orbit interaction." @default.
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- W2805961856 date "2007-03-06" @default.
- W2805961856 modified "2023-09-27" @default.
- W2805961856 title "Spin-Polarized Tunnelling, Discrete Energy Levels, and Spin-Relaxation in Nanometer-Scale Aluminum Grains" @default.
- W2805961856 hasPublicationYear "2007" @default.
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