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New Routes for Magnetic Nanostructure Fabrication

New Routes for Magnetic Nanostructure Fabrication
place:new ANKA seminar room, building 348, upper floor
Affiliation:DESY, Hamburg, Germany
Date:28.07.2014
Inviting person:Svetoslav Stankov, KIT-IPS
Speaker:Kai Schlage
Time:11:00 a.m.

Abstract:

This lecture introduces new routes for magnetic nanostructure fabrication and characterization. First a practical approach for large scale metallic nanostructure fabrication via template assisted self-assembly is presented. PS-b-PMMA diblock copolymer films with long-range chemical surface patterns serve as templates for preparing highly-ordered arrays of magnetic nanostructures (dots, antidots and nanowires).  In-situ x-ray studies reveal the structural formation of the nanopatterns and their magnetic evolution during growth by sputter deposition. Further, a new deposition technique is shown which allows us to engineer and stabilize almost arbitrary magnetization depth profiles within ultrathin magnetic layer systems.