Microscopic origin of exchange bias in core/shell nanoparticles

Details Microscopic origin of exchange bias in core/shell nanoparticles Microscopic origin of exchange bias in core/shell nanoparticles

2005-09-21

arxiv.org/abs/cond-mat/0509553v2

Phys. Rev. B 72, 212401-1/212401-4 (Brief Report) (2005)

Physics

Condensed Matter

Materials Science

5 pages, 4 figures included. Final version, accepted in Phys. Rev. B (Brief Report)

Scientific paper

10.1103/PhysRevB.72.212401

We report the results of Monte Carlo simulations with the aim to clarify the microscopic origin of exchange bias in the magnetization hysteresis loops of a model of individual core/shell nanoparticles. Increase of the exchange coupling across the core/shell interface leads to an enhancement of exchange bias and to an increasing asymmetry between the two branches of the loops which is due to different reversal mechanisms. A detailed study of the magnetic order of the interfacial spins shows compelling evidence that the existence of a net magnetization due to uncompensated spins at the shell interface is responsible for both phenomena and allows to quantify the loop shifts directly in terms of microscopic parameters with striking agreement with the macroscopic observed values.

Affiliated with

Also associated with

No associations

Rating

Microscopic origin of exchange bias in core/shell nanoparticles 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 Microscopic origin of exchange bias in core/shell nanoparticles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microscopic origin of exchange bias in core/shell nanoparticles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-487814