Berlin 2018 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 78: Focus Session: Spinorbitronics - From Efficient Charge/Spin Conversion Based on Spin-Orbit Coupling to Chiral Magnetic Skyrmions I (joint session MA/TT)

Donnerstag, 15. März 2018, 09:30–12:30, H 1012

This session will focus on the novel direction of spintronics, often called spin-orbitronics, that exploits the Spin-Orbit Coupling (SOC) in nonmagnetic materials instead of the exchange interaction to open fascinating new roads for basic research and new line of technologies. A first aim of this symposium will be to review both fundamental and theoretical recent advances made in using spin-orbit effects for generating or detecting spin-polarized currents either through bulk contributions e.g. the Spin Hall Effect or at interfaces through Rashba effects or topological surface states in topological insulators. Spin-orbit coupling can also be used in magnetic materials to create new types of topological objects such as chiral domain walls or magnetic skyrmions, that have generated a strong interest in the last couple of years. The second objective of this focused session will be to review the most recent significant results obtained to generate and characterize strong interfacial Dzyaloshinskii-Moriya Interactions (DMI). Beyond the stabilization of Néel domain walls in perpendicular magnetic layers with great promises for a new generation of race track memories, it has been recently that this chiral interaction plays a crucial role in the observation of magnetic skyrmions at room temperature. The goal will be here also to gather the key advances on the physics of magnetic skyrmions as well as on the potential applications and concept devices that shall leverage on their fascinating topological properties.

Organized by: Vincent Cros (Université Paris-Sud), Giovanni Finocchio (University of Messina)

	09:30	TT 78.1	Hauptvortrag: Understanding Spin-Charge Conversion in Topological Insulators — •Aurelien Manchon
	10:00	TT 78.2	Impact of disorder on interfacial DMI for skyrmionics: intermixing and dusting — •Bernd Zimmermann, William Legrand, Nicolas Reyren, Vincent Cros, Stefan Blügel, and Albert Fert
	10:15	TT 78.3	Control of the skyrmion Hall angle by combining spin-Hall effect, breathing mode and in-plane field — •Riccardo Tomasello, Anna Giordano, Roberto Zivieri, Vito Puliafito, Stefano Chiappini, Bruno Azzerboni, Mario Carpentieri, and Giovanni Finocchio
	10:30	TT 78.4	Electric-field-induced and magneto-optic response properties of chiral magnetic solids — •Sebastian Wimmer, Sergiy Mankovsky, Svitlana Polesya, and Hubert Ebert
	10:45		30 minutes break
	11:15	TT 78.5	Hauptvortrag: Interfacial spin-orbitronic: Rashba interfaces and topological insulators as efficient spin-charge current converters — •Juan-Carlos Rojas-Sanchez
	11:45	TT 78.6	Dynamical spin-orbitronic effects in exchange-bias bilayers from first-principles — •Filipe Souza Mendes Guimarães, Manuel dos Santos Dias, and Samir Lounis
	12:00	TT 78.7	Determination of the Dzyaloshinskii-Moriya interaction in epitaxial asymmetric trilayers — •Fernando Ajejas, Adrian Gudin, Ruben Guerrero, Diane Chaves, Viola Křižáková, Jan Vogel, Stefania Pizzini, Paolo Perna, and Julio Camarero
	12:15	TT 78.8	The spin-Hall stationarity conditions in the light of the second law of thermodynamics — •Jean-Eric Wegrowe, Rober Benda, Jean-Michel Dejardin, and Miguel Rubi