Science et technologie

Topological Matter School: Topological excited States and Non-crystalline Systems (TMS2025)

18.Aoû - 22. Aoû, 2025 Cod. Z17-25

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Description

Excitations play a crucial role in determining fundamental electronic and optical properties of a crystal, and can even give rise to states of matter without any equilibrium counterparts. At the single-layer limit, quantum confinement and enhanced interaction effects lead to exotic many-body phenomena. For example, single-layer semiconductors host tightly bound excitons with large binding energies that remain stable even at room temperature. In bilayer and few-layer stacks, the relative twist angle between layers introduces an additional degree of tunability, enabling the exploration of new emergent phenomena. These include strongly correlated electronic states, adjustable band gaps, unique optical and magnetic properties, and correlated topological phases such as spin Hall and fractional quantum Hall effects.

ORGANIZING COMMITTEE:

Maia G. Vergniory (DIPC, Max Planck)
Reyes Calvo (BC Materials)
Santiago Blanco-Canosa (DIPC, Ikerbasque)
Adolfo Grushin (Institut NEEL – CNRS)
Alexander Altland (University of Cologne)
Julen Ibañez Azpiroz (CFM, Ikerbasque)

Objectifs

The summer school aims to offer a comprehensive introduction to these cutting-edge topics and situate them within the broader framework of emergent phenomena in condensed matter physics.

Activité s'adressant à

Étudiants universitaires
Professionnels

Collaborateurs

Directeurs

Maia García Vergniory

Donostia International Physics Center

Conférenciers

Leni Bascones

ICMM-CSIC

Andrei Bernevig

Manuel dos Santos Dias

Forschungszentrum Julich

Manuel Dos Santos did his undergraduate studies in Physics at the Faculty of Sciences of the University of Lisbon, from 2003 to 2007. He then moved to England, to work on his PhD under the supervision of Prof. Julie Staunton at the University of Warwick, from 2007 to 2011. Since 2011 he has been based at the Peter Grunberg Institut of the Forschungszentrum Julich, working with Prof. Samir Lounis. His field of expertise is in the theory of magnetism and its connection to the electronic structure of real materials. He has investigated the ground state properties of ferromagnets and other types of magnetic materials, both in bulk and in thin film form, and how they are influenced by the interrelation between the electronic and magnetic structures at finite temperature. More recently, he has focused on the properties of single magnetic atoms and small clusters on metallic surfaces, and on their dynamical magnetic excitation spectrum from time-dependent density functional theory.