Théorie

The cross disciplinary field of theoretical physics at Institut NEEL is organized in two main research teams :

Condensed Matter Theory and Theory of Quantum Circuits,

with some researchers directly associated to experimental teams.

We carry out fundamental research in condensed matter physics, quantum circuits and statistical mechanics using and developing a wide range of theoretical tools from first-principles to phenomenology.

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Isodensity surface plots of two of the HOMO LDA Kohn-Sham eigenstates of cytosine.

We develop theory, models, approximations, simulation algorithms and computer codes, and we apply all these tools to study real systems and calculate physical observables. Our interests involve structural atomic properties and phase diagrams, magnetic properties, electronic structure, various spectroscopies, superconductivity and quantum transport, in systems ranging from solids to nanostructures. The general purpose is to understand and interpret experimentally observed properties, as well as to predict new interesting phenomenology. Our work is very often in collaboration with experimentalists and in close connection with experiments carried on within the Institut Néel, as well as outside.


Permanent staff

Our research includes :

  • Quantum transport and nanoelectronics
  • Graphene
  • Organic systems
  • Interdisciplinary model and ab initio study of magnetic properties
  • Interdisciplinary study of strongly-correlated systems

We are involved in several national and European networks. A computing center constituted of one common cluster and several servers is available for our numerical simulations.


Highlights

- Electrons go green : Exploring organic semiconductors

- When holes lose their statistics

- Unified picture for diluted magnetic semiconductors

- When electrons perform in quartets

- Quantum melting of a spin-ice as a new route to supersolidity

- Fluctuating charge order destroys metallic behavior

- Emergent magnetic charge crystal in artificial dipolar spin ice

- Iron in hydrothermal fluids : fundamental geochemical processes studied by synchrotron radiation

- At the interface between ab initio calculations and correlated models

- Tunable light emission from a boron nitride nanotube device

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