Nearly total spin polarization in La2/3Sr1/3MnO3 from tunneling experiments

Details Nearly total spin polarization in La2/3Sr1/3MnO3 from tunneling experiments Nearly total spin polarization in La2/3Sr1/3MnO3 from tunneling experiments

2002-11-08

arxiv.org/abs/cond-mat/0211158v1

Physics

Condensed Matter

Materials Science

to appear in Applied Physics Letters

Scientific paper

10.1063/1.1534619

We have performed magnetotransport measurements on La2/3Sr1/3MnO3 / SrTiO3 / La2/3Sr1/3MnO3 magnetic tunnel junctions. A magnetoresistance ratio of more than 1800 % is obtained at 4K, from which we infer an electrode spin polarization of at least 95 %. This result strongly underscores the half-metallic nature of mixed-valence manganites and demonstrates its capability as a spin analyzer. The magnetoresistance extends up to temperatures of more than 270K. We argue that these improvements over most previous works may result from optimizing the patterning process for oxide heterostructures.

Affiliated with

Also associated with

No associations

Rating

Nearly total spin polarization in La2/3Sr1/3MnO3 from tunneling experiments 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 Nearly total spin polarization in La2/3Sr1/3MnO3 from tunneling experiments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nearly total spin polarization in La2/3Sr1/3MnO3 from tunneling experiments will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-469822