Berlin 2018 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 2: Focus Session: Nanomagnetism in the x-ray spotlight

Montag, 12. März 2018, 09:30–12:45, H 1012

X-ray microscopy allows the application of spectroscopic techniques on length scales far smaller than possible with optical microcopy. X-ray absorption contrast allows element and chemically sensitive imaging, while x-ray magnetic circular dichroism (XMCD) allows direct, highly sensitive detection of the sample magnetization. In x-ray microscopy, these contrast mechanisms can be employed at spatial resolutions below 15 nm, and even better using emergent coherent diffractive imaging techniques. Combining this with pump-and-probe imaging with time resolutions of <50 ps makes x-ray microscopy a universal and powerful tool. In this focus session, the fundamentals of x-ray microscopy, current developments of established and novel techniques and their applications to solve open questions in nanomagnetism are discussed.

Organized by: Joachim Gräfe, Markus Weigand, Eberhard Goering (MPI for Intellligent Systems, Stuttgart)

	09:30	MA 2.1	Hauptvortrag: Advanced X-ray Optics - Zone Plates, Kinoforms and Computer Generated Holograms — •Kahraman Keskinbora, Umut T. Sanli, Margarita Baluktsian, Gül Dogan, Iuliia Bykova, Markus Weigand, and Gisela Schütz
	10:00	MA 2.2	Hauptvortrag: Time-resolved imaging of nanoscale spin textures and spin waves — •Jörg Raabe, Simone Finizio, and Sebastian Wintz
	10:30	MA 2.3	Hauptvortrag: Direct observation of magnetic droplet solitons — •Martina Ahlberg, Sunjae Chung, Q. Tuan Le, Ahmad A. Awad, Markus Weigand, Iuliia Bykova, Roman Khymyn, Mykola Dvornik, Hamid Mazraati, Afshin Houshang, Sheng Jiang, T. N. Anh Nguyen, Eberhard Goering, Gisela Schütz, Joachim Gräfe, and Johan Åkerman
	11:00		15 minutes break
	11:15	MA 2.4	Hauptvortrag: Studying nanomagnets by XMCD PEEM — •Florian Kronast
	11:45	MA 2.5	Hauptvortrag: A time-resolved view on magnetic domains and spin textures by x-ray holography — •Stefan Eisebitt
	12:15	MA 2.6	Room temperature ferromagnetism in EuO revealed by XMCD — •Patrick Lömker, Marek Wilhelm, Ronja Heinen, Mai Hussein, Andrei Gloskovskii, Wolfgang Drube, Peter Bencok, Paul Steadman, and Martina Müller
	12:30	MA 2.7	Element-specific characterization of Co:FePt nanocomposite magnet films — •Fabrice Wilhelm, Veronique Dupuis, Damien Le Roy, Nora Dempsey, and Andrei Rogalev