title: Super-Poissonian shot noise as a probe of spin bias in mesoscopic systems.
abstract: It is proposed that super-Poissonian shot noise can be used to probe and measure the spin bias in mesoscopic systems. Current shot noise through a quantum dot coupled to two conducting leads is theoretically investigated when a pure spin bias is applied. It is found that super-Poissonian shot noise may be induced when the dot level is located within the spin bias window. This further demonstrates the dependence of shot noise on the dot-lead coupling asymmetry and the spin-flip scattering.
authors.affiliation: State Key Laboratory of Electronic Thin Films and Integrated Devices and Department of Applied Physics, University of Electronic Science and Technology of China, Chengdu, People's Republic of China.
authors.forename: Sha-Sha
authors.initials: SS
authors.lastname: Ke
authors.forename: Hai-Feng
authors.initials: HF
authors.lastname: Lü
authors.forename: Huai-Wu
authors.initials: HW
authors.lastname: Zhang