Quantifying spin Hall angles from spin pumping: Experiments and Theory

Details Quantifying spin Hall angles from spin pumping: Experiments and Theory Quantifying spin Hall angles from spin pumping: Experiments and Theory

2009-11-13

arxiv.org/abs/0911.2725v2

Phys. Rev. Lett 104, 046601, 2010

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

Spin Hall effects intermix spin and charge currents even in nonmagnetic materials and, therefore, ultimately may allow the use of spin transport without the need for ferromagnets. We show how spin Hall effects can be quantified by integrating permalloy/normal metal (N) bilayers into a coplanar waveguide. A dc spin current in N can be generated by spin pumping in a controllable way by ferromagnetic resonance. The transverse dc voltage detected along the permalloy/N has contributions from both the anisotropic magnetoresistance (AMR) and the spin Hall effect, which can be distinguished by their symmetries. We developed a theory that accounts for both. In this way, we determine the spin Hall angle quantitatively for Pt, Au and Mo. This approach can readily be adapted to any conducting material with even very small spin Hall angles.

Affiliated with

Also associated with

No associations

Rating

Quantifying spin Hall angles from spin pumping: Experiments and Theory 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 Quantifying spin Hall angles from spin pumping: Experiments and Theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantifying spin Hall angles from spin pumping: Experiments and Theory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-113357