Giant super-poissonian shot noise in spin-polarized SET structures
DOI (Low Temperature Physics):
https://doi.org/10.1063/1.2780168Ключові слова:
single-electron transistor, spin-flip time, shot-noise, Coulumb blockade, spin-polarized electrons.Анотація
We study transport of spin-polarized electrons through a magnetic single-electron transistor (SET) in the presence of an external magnetic field. Assuming the SET to have a nanometer-sized central island with a single electron level, we find that the zero-frequency shot noise diverges as the on-dot spin-flip rate goes to zero, provided the source and drain leads are completely polarized in the same direction. We present an analytical expression for the low-frequency super-poissonian shot noise that allows one to specify the necessary conditions for the experimental observation of the phenomenon.
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Опубліковано
2007-08-10
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L.Y. Gorelik, S.I. Kulinich, R.I. Shekhter, M. Jonson, and V.M. Vinokur, Giant super-poissonian shot noise in spin-polarized SET structures, Low Temp. Phys. 33, (2007) [Fiz. Nizk. Temp. 33, 997-1001, (2007)] DOI: https://doi.org/10.1063/1.2780168.
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