Shot noise of a ferromagnetic nanowire with a domain wall

Details Shot noise of a ferromagnetic nanowire with a domain wall Shot noise of a ferromagnetic nanowire with a domain wall

2009-03-07

arxiv.org/abs/0903.1360v1

Phys. Rev. B 79, 104403 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

6 pages, 3 figures

Scientific paper

10.1103/PhysRevB.79.104403

We study shot noise of the spin-polarized current in a diffusive ferromagnetic nanowire which contains a ballistic domain wall. We find that the existence of a short domain wall influences strongly the shot noise for sufficiently high spin-polarization of the wire. Compared to the situation of the absence of the domain wall, the shot noise can be reduced or enhanced depending on the length of the domain wall and its relative conductance.

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