Matches in SemOpenAlex for { <https://semopenalex.org/work/W1990683704> ?p ?o ?g. }
- W1990683704 abstract "Spin-dependent transport through a multilevel quantum dot weakly coupled to ferromagnetic leads is analyzed theoretically by means of the real-time diagrammatic technique. Both the sequential and cotunneling processes are taken into account, which makes the results on tunnel magnetoresistance (TMR) and shot noise applicable in the whole range of relevant bias and gate voltages. Suppression of the TMR due to inelastic cotunneling and super-Poissonian shot noise has been found in some of the Coulomb blockade regions. Furthermore, in the Coulomb blockade regime, there is an additional contribution to the noise due to bunching of cotunneling processes involving the spin-majority electrons. On the other hand, in the sequential tunneling regime, TMR oscillates with the bias voltage, while the current noise is generally sub-Poissonian." @default.
- W1990683704 created "2016-06-24" @default.
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- W1990683704 date "2008-02-06" @default.
- W1990683704 modified "2023-09-27" @default.
- W1990683704 title "Shot noise and tunnel magnetoresistance in multilevel quantum dots: Effects of cotunneling" @default.
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- W1990683704 doi "https://doi.org/10.1103/physrevb.77.075305" @default.
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