Offres pour Doctorants

Atomic scale simulation of Graphene-based transistors materials.

Abstract: The standard MOS technology is based on silicon. In order to satisfy the technological requirements of the next generations of transistors as defined by the ITRS roadmap, new materials are currently studied and designed. Graphene nano-ribbons have recently emerged as a highly promising material. CEA-LETI, one of the most famous R&D centre at the European level is presently active in the development of a graphene-based MOSFET using SOI substrate technology. In...

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Modeling and simulation from the nano to the meso-scale of ferromagnetic materials.

Abstract: The most used model, the micromagnetism, for ferromagnetic materials has been introduced by W.-F. Brown in the 60's. This model, dynamic or static, describe the ferromagnetic materials as continuous materials and provide an energy and a dynamic equation, the Landau and Lifchitz system. The main goal of this project would be to understand the mathematical model for the atomistic scale in order to perform an asymptotic analysis from this scale to the meso-scopic scale....

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Dimensional Effect on Phase Transition in Materials for Phase Change Memories

Abstract: As stated in various technological review papers, new concepts will be needed to fulfill the requirement of memory devices architectures in the near and long terms. The limitation of electronic charging with scaling request to research on new storage concepts: storing information via different resistive states is a very promising approach. Phase Change Random Access Memory (PCRAM) attracts great interest. LETI is involved in industrial programs to focus on the...

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