Symposium EQ08-Higher-Order Topological Structures in Real Space—From Charge to Spin

Real space structures with non-trivial topology, such as skyrmions, merons, dislocations and domain walls, are rich sources for emergent functional phenomena, enabling local control of magnetic, electronic and ionic transport properties, light-matter interactions, propagation of (electro)magnons and phonons, and more. The concept of topology has led to a strong cross-disciplinary dimension connecting the ferroelectrics and the magnetism communities. It is now clear that higher-order topological charge and spin textures open up a plethora of possible future dynamic nanoelectronics, spintronics and quantum devices. The beauty and connections of the unifying scientific concepts in materials with electric and / or magnetic order are mutually beneficial and have become a strong motivation for interdisciplinary activities, propelled by the recent developments in theory, synthesis and characterization.

This symposium aims to bring together scientific experts and young scientists with an interest in topologically non-trivial charge and spin textures that arise in real space, fostering interactions and advancing knowledge of higher-order topological structures in ferroelectrics, multiferroics and magnetic materials.

Topics will include:

Skyrmions and chiral textures, higher-order topological structures
Domains and domain walls, dislocations and disclinations
Time-resolved and ultrafast measurements
In-situ/operando characterization of dynamic processes via electron and local probe microscopy
Three dimensional characterisation and reconstruction of higher order topologies
Atomic-scale charge, spin and phonon characterization
Controlled formation and movement of topological structures
Materials (bulk crystals, thin films, superlattices, 2D systems)
Emergent functional properties
Interactions with extrinsic and intrinsic defects
Vortex, anti-vortex, and vertex structures
Nanoelectronics using topological defects
Theoretical simulation and modeling of mechanically, electrically and magnetically driven processes

Invited Speakers:

Marin Alexe (University of Warwick, United Kingdom)
Stefan Blügel (Forschungszentrum Jülich GmbH, Germany)
Sang Wook Cheong (Rutgers University, USA)
Laura Clark (University of Leeds, United Kingdom)
Ismail El Baggari (Harvard University, USA)
Karin Everschor-Sitte (University of Duisburg-Essen, Germany)
Peter Fischer (Lawrence Berkeley National Laboratory, USA)
Markus Garst (Karlsruhe Institute of Technology, Germany)
Fernando Gomez Ortiz (Universidad de Cantabria, Spain)
Megan Holtz (Colorado School of Mines, USA)
Juan Carlos Idrobo (Oak Ridge National Laboratory, USA)
Naoya Kanazawa (The University of Tokyo, Japan)
Lynette Keeney (Tyndall National Institute, Ireland)
Mathias Kläui (Johannes Gutenberg-Universität Mainz, Germany)
Igor Lukyanchuk (University of Picardie, France)
Margret McCarter (University of California, Berkeley, USA)
David Muller (Cornell University, USA)
Julia Mundy (Harvard University, USA)
Kayla Nguyen (University of Illinois at Urbana-Champaign, USA)
Quentin Ramasse (SuperSTEM, United Kingdom)
Ramamoorthy Ramesh (University of California, Berkeley, USA)
Marta Rossell (Empa–Swiss Federal Laboratories for Materials Science and Technology, Switzerland)
Yu-Tsun Shao (Cornell University, USA)
Yang Shen (Tsinghua University, China)
Naoya Shibata (The University of Tokyo, Japan)
Nicola Spaldin (ETH Zürich, Switzerland)
He Tian (Zhejiang University, China)

Symposium Organizers

Michele Conroy

Imperial College London

Materials

United Kingdom

[email protected]

Sinead Griffin

Lawrence Berkeley National Laboratory

Molecular Foundry

USA

[email protected]

Zijian Hong

Zhejiang University

Materials Science and Engineering

China

Dennis Meier

Norwegian University of Science and Technology

Department of Materials Science and Engineering

Norway

[email protected]

Topics

electron energy loss spectroscopy (EELS) electron-phonon interactions ferroelectric ferromagnetic magnetic properties modeling quantum effects scanning transmission electron microscopy (STEM) simulation spintronic