Universal spin-polarization fluctuations in 1D wires with magnetic impurities

Details Universal spin-polarization fluctuations in 1D wires with magnetic impurities Universal spin-polarization fluctuations in 1D wires with magnetic impurities

2001-12-20

arxiv.org/abs/cond-mat/0112376v2

Phys. Rev. B 66, 153306 (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages including 4 figures

Scientific paper

10.1103/PhysRevB.66.153306

We study conductance and spin-polarization fluctuations in one-dimensional wires with spin-5/2 magnetic impurities (Mn). Our tight-binding Green function approach goes beyond mean field thus including s-d exchange-induced spin-flip scattering. In a certain parameter range, we find that spin flip suppresses conductance fluctuations while enhancing spin-polarization fluctuations. More importantly, spin-polarization fluctuations attain a universal value 1/3 for large enough spin flip strengths. This intrinsic spin-polarization fluctuation may pose a severe limiting factor to the realization of steady spin-polarized currents in Mn-based 1D wires.

Affiliated with

Also associated with

No associations

Rating

Universal spin-polarization fluctuations in 1D wires with magnetic impurities does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Universal spin-polarization fluctuations in 1D wires with magnetic impurities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Universal spin-polarization fluctuations in 1D wires with magnetic impurities will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-314221