English

Interaction effects and transport properties of Pt capped Co nanoparticles

Materials Science 2013-02-06 v1

Abstract

We studied the magnetic and transport properties of Co nanoparticles (NPs) being capped with varying amounts of Pt. Beside field and temperature dependent magnetization measurements we performed delta-M measurements to study the magnetic interactions between the Co NPs. We observe a transition from demagnetizing towards magnetizing interactions between the particles for an increasing amount of Pt capping. Resistivity measurements show a crossover from giant magnetoresistance towards anisotropic magnetoresistance.

Keywords

Cite

@article{arxiv.1209.6255,
  title  = {Interaction effects and transport properties of Pt capped Co nanoparticles},
  author = {A. Ludwig and L. Agudo and G. Eggeler and A. Ludwig and A. D. Wieck and O. Petracic},
  journal= {arXiv preprint arXiv:1209.6255},
  year   = {2013}
}