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DHANKHAR, M. VAŇATKA, M. URBÁNEK, M.
Original Title
Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques
Type
journal article in Web of Science
Language
English
Original Abstract
Electron and x-ray magnetic microscopies allow for high-resolution magnetic imaging down to tens of nanometers. However, the samples need to be prepared on transparent membranes which are very fragile and difficult to manipulate. We present processes for the fabrication of samples with magnetic micro- and nanostructures with spin configurations forming magnetic vortices suitable for Lorentz transmission electron microscopy and magnetic transmission x-ray microscopy studies. The samples are prepared on silicon nitride membranes and the fabrication consists of a spin coating, UV and electron-beam lithography, the chemical development of the resist, and the evaporation of the magnetic material followed by a lift-off process forming the final magnetic structures. The samples for the Lorentz transmission electron microscopy consist of magnetic nanodiscs prepared in a single lithography step. The samples for the magnetic x-ray transmission microscopy are used for time-resolved magnetization dynamic experiments, and magnetic nanodiscs are placed on a waveguide which is used for the generation of repeatable magnetic field pulses by passing an electric current through the waveguide. The waveguide is created in an extra lithography step.
Keywords
nanotechnology, magnetic nanostructures, magnetic vortex
Authors
DHANKHAR, M.; VAŇATKA, M.; URBÁNEK, M.
Released
2. 7. 2018
Publisher
MyJove Corp.
Location
Cambridge, MA, USA
ISBN
1940-087X
Periodical
Journal of visualized experiments : JoVE
Year of study
137
Number
1
State
United States of America
Pages from
Pages to
7
Pages count
URL
https://www.jove.com/video/57817
Full text in the Digital Library
http://hdl.handle.net/11012/102751
BibTex
@article{BUT150505, author="Meena {Dhankhar} and Marek {Vaňatka} and Michal {Urbánek}", title="Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques", journal="Journal of visualized experiments : JoVE", year="2018", volume="137", number="1", pages="1--7", doi="10.3791/57817", issn="1940-087X", url="https://www.jove.com/video/57817" }