Please be aware that the International Institute of Physics, IIP, never contacts the participants to ask for credit card or similar information. Participants are expected to pay for their travel and accommodation by themselves unless they qualify for financial support. If you have any questions, please contact IIP events department at events@iip.ufrn.br

DATES

 

October 23-27, 2023

 

 

DIRECTORS

 

  • Sebastien Burdin (University of Bordeaux, France)
  • Peter Hirschfeld (University of Florida, USA)
  • Sergio Magalhaes (Federal University of Rio Grande do Sul, Brazil)
  • Pascoal Pagliuso (University of Campinas, Brazil)
  • Gertrud Zwicknagl (Technical University of Braunschweig, Germany)

 

 

OVERVIEW

 

Fermi surfaces and electronic band structures paradigm occupy a central place in solid state science, since most of the physical properties of bulk metallic materials are governed by conduction electrons. The underlying hypothesis, which relies on a Bloch wave description of crystalline non-interacting electronic systems, is obviously not satisfied in numerous examples of emergent materials. The most challenging examples include strongly correlated electronic systems and structurally disordered materials showing spectacular macroscopic properties related with unconventional quantum order. Despite the inapplicability of the most common approaches to calculating electronic structure, the notion of electronic bands may often be generalized to describe most of these emergent materials. A standard example of such extension, from a phenomenological point of view, is the Fermi Liquid description of strongly correlated systems: despite strong interactions, low energy excitations can usually be described as the one of a non-interacting Fermi gas with renormalized effective mass. Experimentally, a large variety of techniques have also been developed initially from a Bloch wave description of electronic matter, including ARPES, quantum oscillations, Raman, X-ray or neutron scattering spectroscopies.

 

The present workshop aims at the experimental and theoretical studies of emergent materials such as heavy fermions, topological insulators, high temperature superconductors, or frustrated quantum magnets. The last decades have witnessed a flurry of activities in extending the frontiers of validity of the electronic band structure paradigm for describing and characterizing strongly correlated or disordered electron systems with unconventional phases. For example, modern mean-fields techniques have been developed to derive emergent effective non-interacting band models from strongly interacting systems. In order to model some spectroscopy experiments as well as thermodynamics and transport properties of emergent materials, localized magnetic degrees of freedom may be phenomenologically either fractionalized and included into an effective Fermisurface, or considered as bosonic/classical fields coupled to a Fermi liquid. For quantitative matching with experimental measurements, very powerful techniques have been developed, improving density functional theory methods in order to take into account relevant strong correlation effects, possible conventional and unconventional orderings, as well as time dependencies.

 

 

MAIN TOPICS

 

  • Novel materials and experimental methods, including general material elaboration and characterizations and experimental techniques for description of electronic properties: Angle Resolved Photoemission (ARPES), tunnel spectroscopies, and quantum oscillations (Shubnikov de Haas, de Hassvan Alphen); for studying electronic and magnetic correlations: electronic Raman, resonant inelastic X-ray spectroscopy (RIXS), infrared conductivity, inelastic neutron scattering (INS), nuclear magnetic resonance (NMR), muon spin resonance (μSR), x-ray and neutron diffraction; for phase transition, nonFermi-liquid and symmetry characterizations: thermodynamic and transport measurements;
  • Novel numerical methods, particularly those related to the necessary improvements of Density Functional Theory methods that are required for an ab initio description of materials forming strongly correlated ground states;
  • Novel analytical methods, that are required for the characterization of new quantum phases and phenomena such as unconventional superconductivity, spin-liquid phases and non-Fermi liquid behaviors, topological orders; and for an appropriate description of elementary local or collective excitations in these materials;
  • Unconventional superconductivity and its interplay with magnetism, spin-orbit coupling, charge fluctuation, charge ordering in various materials;
  • Emergence of pseudogaps, topology, quantum criticality and their possible connections with exotic quantum orders in real materials;
  • Quantum magnetism and frustration in crystalline materials;
  • Dual descriptions of emergent quantum orders in real materials. Interplay between conduction electrons and local quantum objects: multipoles, vortices, skyrmions, etc…
  • Interplay between disorder and correlations in real materials, in particular those where doping with foreign element is used to tune the nature of the ground state; disorder effects resulting from the method of synthesis (powder versus single crystals, dislocations);
  • Highly excited states in materials, correlated electrons far from equilibrium, and light-matter interaction in correlated electron systems.

 

 

SPEAKERS

 

 

- Maria Carolina Aguiar (Federal University of Minas Gerais, Belo Horizonte - Brazil), Formation of spin and charge ordering in the extended Hubbard model during a finite-time quantum quench
- Marcos Avila (UFABC, Santo Andre – Brazil), Unveiling emergent phenomena in Bi2Se3 and V5S8 single crystals through structure-property relationships
- Ernst Bauer (Vienna University of Technology, Austria), Magnetoresistance near Quantum Criticality
- Mucio Continentino (CBPF, Rio de Janeiro - Brazil), Complex magnetism of uranium-based iron-pnictides
- Walber de Brito (Federal University of Minas Gerais, Belo Horizonte - Brazil), Orbital selective correlations in 5f materials
- Hermann Freire (Federal University of Goias, Goiania - Brazil), Transport properties of strongly correlated models for high-Tc superconductors
- Eduardo Granado (Unicamp, Campinas - Brazil), Structure-property relationships in emergent materials: from multiband heavy fermions to spin-state ordering
- Andreas Kreisel (Niels Bohr Institute, Copenhagen - Denmark), TBA
- Andrea Leon (Pontifical University Catholic of Chile, Valparaíso - Chile), Ca3Ru2O7: Interplay among degrees of freedom and the role of the exchange-correlation
- Ricardo Lobo (ESPCI Paris, France), Localization and disorder in the metal-insulator transition, and the nature of the chemical bonding in phase change materials
- Vidya Madhavan (University of Illinois Urbana-Champaign, USA), Pair density waves in UTe2 OR laser control of time-reversal breaking charge density waves in a Kagome system
- Valentina Martelli (University of Sao Paulo, Brazil), Thermal transport in insulating complex oxides
- David Möckli (Federal University of Rio Grande do Sul, Porto Alegre - Brazil), Unconventional superconductivity with multiple degrees of freedom
- Philip Moll (Max Planck Institute Hamburg, Germany), Tunable correlated states in the Kagome metals (Cs,K)V3Sb5
- Eva Pavarini (Julich Research Center, Germany), Multi-orbital nature of doped Sr2IrO4
- Rodrigo Pereira (International Institute of Physics-UFRN, Natal - Brazil), Scanning tunneling spectroscopy of Majorana zero modes in a Kitaev spin liquid
- Peter Riseborough (Temple University, Philadelphia - USA), Instabilities of the Lieb Model
- Denise Sacramento Christovam (Max Planck Institute Dresden, Germany), U f2 multiplet states in low energy excitations of UTe2 observed in M-edge RIXS
- Andrea Severing (University of Cologne, Germany), Atomic-like states in intermetallic uranium compounds unveiled by new spectroscopies
- Alpesh Sheth (University of Bordeaux, France), TBA
- Yvan Sidis (LLB CEA Saclay, France), Hunting for Loop Current in Quantum Matter
- Hermann Suderow (Autonomous University of Madrid, Spain), Atomic scale visualization of surface and bulk states in f-electron compounds
- Eteri Svanidze (Max Planck Institute Dresden, Germany), Complex magnetism of uranium-based iron-pnictides
- Sophie Tencé (University of Bordeaux, France), Light elements insertion induced superconductivity in iron-based intermetallics
- Christopher Thomas (Federal University of Rio Grande do Sul, Porto Alegre - Brazil), TBA
- Liu Hao Tjeng (Max Planck Institute Dresden, Germany), Imaging the d/f-charge density of strongly correlated systems using inelastic x-ray scattering and hard-x-ray photoemission
- Nandini Trivedi* (Ohio State University, Columbus - USA), TBA
- Cecilia Ventura (Bariloche Atomic Center, Argentina), Describing the  electronic properties of  Bi-based  non-conventional superconductors
- Joachim Wosnitza (Helmholtz-Zentrum Dresden-Rossendorf, Germany), FFLO states in quasi-two-dimensional organic superconductors
 
 
* To be confirmed
 
 
The preliminary program of the event will soon be available on this webpage
 

REGISTRATION

 

For registration please fill the following Google Form
 
Register here

 

Upon completing the information you will receive an automatic confirmation email. This email will contain a link to update your information whenever necessary. In case of further questions you can contact the organization team.

 

Registration deadline: August 20, 2023

 

 

 

MAIN SPONSORS

 

Wilhelm and Else Heraeus Foundation

International Institute of Physics Association

Brazilian Ministry of Education

Federal University of Rio Grande do Norte
 
 

CONTACT

 

Local Organization team can be reached through events@iip.ufrn.br