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13 results on '"Stillrich H"'

2. Magnetic soft x-ray holography study of focused ion beam-patterned Co/Pt multilayers.

Author

Streit-Nierobisch, S., Stickler, D., Gutt, C., Stadler, L.-M., Stillrich, H., Menk, C., Frömter, R., Tieg, C., Leupold, O., Oepen, H. P., and Grübel, G.

Subjects
PROPERTIES of matter, FERROMAGNETIC materials, MAGNETIC domain, FERROELECTRICITY, ION bombardment, IMAGE reconstruction, PHOTONICS
Abstract

We report on Fourier transform holography (FTH) experiments on nanostructured Co/Pt multilayer films with 40 nm spatial imaging resolution. The films have been nanostructured by means of focused ion beam (FIB) milling. Applying the ion beam through the supporting membrane with controlled and homogeneous dosing allows for higher resolution magnetic structuring of the ion-sensitive film compared to direct FIB patterning. Nanostructured samples with magnetic stripes exposed to different ion doses and magnetic arrays with 200 nm lattice constant were successfully prepared and imaged by FTH. We present image-processing routines for artifact-free image reconstruction. With this, we could investigate the FIB-induced anisotropy modulation and the perpendicular domain structure in the nanostructured samples, showing how to control the domain size and configuration by applying the appropriate ion dose either homogeneously or concentrated in single spots. [ABSTRACT FROM AUTHOR]

Published
2009
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5. Resonant magnetic scattering with soft x-ray pulses from a free-electron laser operating at 1.59 nm

Author

Gutt, C., primary, Stadler, L.-M., additional, Streit-Nierobisch, S., additional, Mancuso, A. P., additional, Schropp, A., additional, Pfau, B., additional, Günther, C. M., additional, Könnecke, R., additional, Gulden, J., additional, Reime, B., additional, Feldhaus, J., additional, Weckert, E., additional, Vartanyants, I. A., additional, Hellwig, O., additional, Staier, F., additional, Barth, R., additional, Grunze, M., additional, Rosenhahn, A., additional, Stickler, D., additional, Stillrich, H., additional, Frömter, R., additional, Oepen, H. P., additional, Martins, M., additional, Nisius, T., additional, Wilhein, T., additional, Faatz, B., additional, Guerassimova, N., additional, Honkavaara, K., additional, Kocharyan, V., additional, Treusch, R., additional, Saldin, E., additional, Schreiber, S., additional, Schneidmiller, E. A., additional, Yurkov, M. V., additional, Eisebitt, S., additional, and Grübel, G., additional

Published
2009
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6. Coherent-Pulse 2D Crystallography Using a Free-Electron Laser X-Ray Source

Author

Mancuso, A. P., primary, Schropp, A., additional, Reime, B., additional, Stadler, L.-M., additional, Singer, A., additional, Gulden, J., additional, Streit-Nierobisch, S., additional, Gutt, C., additional, Grübel, G., additional, Feldhaus, J., additional, Staier, F., additional, Barth, R., additional, Rosenhahn, A., additional, Grunze, M., additional, Nisius, T., additional, Wilhein, T., additional, Stickler, D., additional, Stillrich, H., additional, Frömter, R., additional, Oepen, H.-P., additional, Martins, M., additional, Pfau, B., additional, Günther, C. M., additional, Könnecke, R., additional, Eisebitt, S., additional, Faatz, B., additional, Guerassimova, N., additional, Honkavaara, K., additional, Kocharyan, V., additional, Treusch, R., additional, Saldin, E., additional, Schreiber, S., additional, Schneidmiller, E. A., additional, Yurkov, M. V., additional, Weckert, E., additional, and Vartanyants, I. A., additional

Published
2009
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9. Shallow HEMTs For Lateral Magnetic Superlattices

Author

Dinter, R., primary, Stillrich, H., additional, Heyn, Ch., additional, Pütter, S., additional, Oepen, H. P., additional, Hansen, W., additional, Frömsdorf, A., additional, Förster, S., additional, Lee, W., additional, and Nielsch, K., additional

Published
2007
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12. Imaging the cone state of the spin reorientation transition.

Author

Frömter R, Stillrich H, Menk C, and Oepen HP

Abstract

The magnetization behavior and the domain pattern in remanence are studied in Co/Pt multilayers. The reorientation of magnetization from perpendicular to in plane is found to happen via the state of canted magnetization. In the transition from an easy axis to an easy plane a stable domain pattern in the in-plane magnetization components is found for Co/Pt multilayers. The analysis of the domain pattern reveals that the magnetization canting is such that all in-plane orientations of magnetization are equally occupied. The found structure is appointed to the cone state.

Published
2008
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13. Highly ordered nanostructured surfaces obtained with silica-filled diblock-copolymer micelles as templates.

Author

Frömsdorf A, Kornowski A, Pütter S, Stillrich H, and Lee LT

Subjects
Macromolecular Substances chemistry, Materials Testing, Micelles, Molecular Conformation, Particle Size, Surface Properties, Colloids chemistry, Crystallization methods, Nanostructures chemistry, Nanostructures ultrastructure, Nanotechnology methods, Polymers chemistry, Silicon Dioxide chemistry
Abstract

In this work, we present the size-controlled preparation of silica-filled micelle cores and their self-assembly behavior, which is dependent on the block lengths, different coating techniques, and substrates. Furthermore, we present a way to use these structures as templates for highly ordered magnetic nanostructures, revealed by Ar-ion milling. The resulting structures were characterized by different imaging and scattering techniques and model simulations were performed. The characterization of the obtained nanostructured surfaces has be performed with atomic force microscopy, by scanning electron microscopy, grazing-incidence X-ray small-angle scattering, and X-ray reflectivity measurements. The magneto-optical Kerr effect was utilized to investigate magnetic properties.

Published
2007
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