Fermi Surface, Novel Quantum Phases, and Superconductivity in Strongly Correlated Electrons Systems

Les Houches - WE Heraeus School

27 Mar - 01 Apr 2022


Ecole de Physique - Les Houches, France

Scientific organizers:

Prof. Dr. Gertrud Zwicknagl, TU Braunschweig • Prof. Dr. Joachim Wosnitza, Helmholtz-Zentrum Dresden-Rossendorf • Dr. Pierre Rodière, U Grenoble-Alpes & CNRS • Dr. Marie-Aude Méasson, Université Grenoble-Alpes & CNRS • Dr. Sebastien Burdin, CNRS et Université de Bordeaux

Exploring, understanding, and describing materials with strong electronic Coulomb correlations remain among the big challenges of modern condensed-matter physics. Well-known examples of such systems are transition-metal oxides, metals containing lanthanide or actinide atoms, and organic conductors. At low temperatures, these materials exhibit novel phenomena such as metal-to-insulator transitions, heavy-fermion behavior, unconventional superconductivity, unusual magnetism, stripe and nematic orders as well as pronounced deviations from the typical universal metallic behavior. Superconductivity and ferromagnetism are not only found to coexist but even to cooperate. A central goal of the research, thereby, is to develop, on the theoretical side, a quantitative microscopic understanding of the possible complex states and their interactions as well as, on the experimental side, to characterize them using the broadest possible range of measurement

The fascination with correlated quantum matter lies in their complex, often unexpected, "abnormal" behavior and their extreme sensitivity to external probes such as pressure, magnetic fields, or temperature. Slight changes in composition, constraints during the growth process (e.g., by hetero-structuring) or off-stoichiometry can significantly alter their properties and tune the systems through (quantum-)critical points.

The aim of the school is to deepen the understanding of the physics of quantum materials with a focus on superconductivity. The lectures will address materials growth, measurement techniques, experimental results, theory, computation, and general understanding. We attempt to provide a comprehensive overview of the fundamental ideas, the current status, the recent developments, and the perspective future directions in the field.

This school is addressed to graduate students and young researchers in the field of correlated quantum matter.