2013
DOI: 10.1103/physrevb.87.235411
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Nonuniversal shot noise in quasiequilibrium spin valves

Abstract: We show that the breakdown of the Wiedemann-Franz law due to electron-electron scattering in diffusive spin valves may result in a strong suppression of the Fano factor that describes the ratio between shot noise and average current. In the parallel configuration of magnetizations, we find the universal value √ 3/4 in the absence of a normal-metal spacer layer, but including the spacer leads to a nonmonotonous suppression of this value before reaching back to the universal value for large spacer lengths. On th… Show more

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Cited by 3 publications
(4 citation statements)
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“…However, almost one third of the visits of respondents were unplanned stops along the way (tertiary nucleus) highlighting the importance of on-site stimuli (Hwang & Fesenmaier, 2011). Compared to previous studies conducted in Lieksa, the average visitor expenditure (100 €) is significantly higher than expected vis-à-vis to the 50 € estimated by Eisto (2003) and Heikkilä (2008).…”
Section: Discussionmentioning
confidence: 68%
See 1 more Smart Citation
“…However, almost one third of the visits of respondents were unplanned stops along the way (tertiary nucleus) highlighting the importance of on-site stimuli (Hwang & Fesenmaier, 2011). Compared to previous studies conducted in Lieksa, the average visitor expenditure (100 €) is significantly higher than expected vis-à-vis to the 50 € estimated by Eisto (2003) and Heikkilä (2008).…”
Section: Discussionmentioning
confidence: 68%
“…It was estimated that about 60 000 visitors came to Ruunaa hiking area and an average visitor spent about 50 € during the stay in Lieksa. The median for visitors in Patvinsuo national park was exactly the same: 50 € per person per trip (Heikkilä, 2008). Table 1 here"…”
Section: Previous Studies Of the Economic Impacts Of Tourism In Lieksamentioning
confidence: 91%
“…It is well known, how a relaxation of the electronic energy distribution via inelastic electron-phonon [12] and electron-electron [13,14] scattering influences the shot noise in diffusive conductors and nonequilibrium spin valves [15]. In this letter, we calculate the impact of a spin relaxation on the spin imbalance generated shot noise in the absence of inelastic processes.…”
Section: Pacsmentioning
confidence: 99%
“…Being a primary approach [10], the shot noise based detection is potentially suitable for the absolute measurement of the spin imbalance. In addition, the noise measurement can be used for a local non-invasive sensing, as recently demonstrated with a semiconductor nanowire probe [11].It is well known, how a relaxation of the electronic energy distribution via inelastic electron-phonon [12] and electron-electron [13,14] scattering influences the shot noise in diffusive conductors and nonequilibrium spin valves [15]. In this letter, we calculate the impact of a spin relaxation on the spin imbalance generated shot noise in the absence of inelastic processes.…”
mentioning
confidence: 99%