Direct Thermal Patterning of Self-Assembled Nanoparticles

Direct Thermal Patterning of Self-Assembled Nanoparticles

A general methodology for direct thermal patterning of self-assembled nanoparticle films is presented. Specifically, using laser heating we have fabricated ferromagnetic FePt nanoparticle array patterns with 0.8 μm pitch and an edge resolution of ∼100 nm. The nanoparticle arrays have been investigat...

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Veröffentlicht in:Nano letters 2003-12, Vol.3 (12), p.1643-1645
Hauptverfasser: Hamann, Hendrik F, Woods, S. I, Sun, Shouheng
Format: Artikel
Sprache:eng
Schlagworte:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fe and its alloys
Fine-particle systems
Magnetic properties and materials
Materials science
Methods of nanofabrication
Nanoscale pattern formation
Physics
Self-assembly
Small particles and nanoscale materials
Studies of specific magnetic materials
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Zusammenfassung:A general methodology for direct thermal patterning of self-assembled nanoparticle films is presented. Specifically, using laser heating we have fabricated ferromagnetic FePt nanoparticle array patterns with 0.8 μm pitch and an edge resolution of ∼100 nm. The nanoparticle arrays have been investigated by scanning SQUID microscopy and MFM. Finally, we have measured the patterning rate as a function of temperature by monitoring the change in optical reflectance.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl034706d