PhD Thesis 2007 (Stan Konings)

This website complements the PhD thesis: Pinning of magnetic domains studied with resonant x-rays

On this website you find some material that is supplementary to the thesis Pinning of magnetic domains studied with resonant x-rays. You can download the thesis from the link below. The supplementary material consists predominantly of movies. So if you decide to proceed and have a slow connection, be prepared to wait. The supplementary material found via the links below will have a size of maximum 5 Mb.

Thesis

Pinning of magnetic domains studied with resonant x-rays
Thesis in high resolution: 42 Mb | [PDF]
Thesis in low resolution: 10 Mb | [PDF]
Cover in high-resolution: 1 Mb | [JPG]
ISBN: 978-90-5776-172-0

Supplementary Material:

Static and fluctuating magnetic speckle patterns

Supplementary to Chapter 2.

Magnetic x-ray microscopy of pristine and dot patterned GdFe

Supplementary to Chapter 5.

Magnetic x-ray scattering of pristine and dot-patterned GdTbFe

Supplementary to Chapter 6.

Papers:

Described in Chapters 4 and 6
Magnetic domain pinning in an anisotropy-engineered GdTbFe thin film
Stan Konings, Jorge Miguel, Julio Camarero, Jan Vogel and Jeroen Goedkoop
J. Appl. Phys. 100, 033904 (2006) [abstract] [pdf]

Described in Chapters 4
Lock in of magnetic stripe domains to pinning lattices produced by focused ion-beam patterning
Stan Konings, Jorge Miguel, Jeroen Luigjes, Hugo Schlatter, Huib Luigjes, Vishwas Gadgil and Jeroen Goedkoop
J. Appl. Phys. 98, 054306 (2005) [abstract] [pdf]

Movie: proposed mechanism of anisotropy reduction

This movie shows an animation of the proposed mechanism of FIB-induced anisotropy reduction in amorphous Rare earth Transition metal alloys. GdFe has a sperimagnetic structure; the Gd (red) and Fe (yellow) sublattices have opposite spin just like in a ferrimagnet but the spins are non-collinear. So they are dispersed over the perpendicular magnetic anisotropy axis due to the intrinsic amorphous structure. Because Tb is just like Gd a rare-earth metal, its sublattice has the same spin orientation (so opposite to Fe). The Ga⁺ ions from the focused ion beam are shown in blue.

Warning ! Large filesize: be prepared to wait
For the uncompressed AVI movie click here [mechanism.avi; 18 MB]
For the zipped AVI movie click here [mechanism.zip; 6 MB]
For an animated gif click here [mechanism.gif; 7 MB]


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Van der Waals Zeeman Institute
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