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arXiv · 1209.6255

Interaction effects and transport properties of Pt capped Co nanoparticles

A. Ludwig·L. Agudo·G. Eggeler·A. D. Wieck·O. Petracic
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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.

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A. Ludwig, L. Agudo, G. Eggeler, A. D. Wieck, O. Petracic. 2012-09-27. Interaction effects and transport properties of Pt capped Co nanoparticles. https://doi.org/10.1063/1.4789422

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