Magnetic properties of self-organized lateral arrays of (Fe,Ag)/Mo(110) nanostripes
Bogdana Borca (LLN), Olivier Fruchart (LLN), Claire Meyer (LLN)
TL;DR
This paper reports the fabrication and magnetic characterization of self-organized Fe/Ag nanostripes on Mo(110), revealing uniaxial anisotropy and superparamagnetic behavior with interactions between wires.
Contribution
It introduces a method to create self-organized Fe nanostripes with specific magnetic properties on Mo(110) surfaces.
Findings
Nanostripes have a 3.5 nm period.
Wires exhibit strong in-plane uniaxial anisotropy.
Superparamagnetic behavior observed above 185K.
Abstract
We report the fabrication of self-organized arrays of Fe nanostripes with a period of 3.5 nm, by sequential deposition of Fe and Ag on Mo(110). The wires display a strong in-plane uniaxial anisotropy along their length, and are superparamagnetic above Tb=185+/-15K. The large value of nucleation volumes, inferred from the analysis of the thermal dependence of coercivity below TB, suggests the existence of interactions between the wires.
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