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CORDIS

Non adiabatic vibrational spectra from first principles

Objective

We submit to consideration of the 7th framing EU program, Marie Curie Incoming Fellowship
program, a research project in the field of computational material science to explore material thermal properties of homogeneous systems. We propose this project with the idea of setting up long term collaborations between the groups in Mexico and Germany. The proposed research program is aimed to understand, to develop and to characterize systems with novel properties originating from electronic correlations and in particular of systems where the electron-phonon coupling plays an important role in its thermal response. In that respect, we expect to use and implement two different recent proposed methodologies, which allow us to explore the non adiabatic contribution and anharmonic effects to the phonon spectra. This physical phenomena has been reported to have relevance in layered materials, such as graphene, MgB2, CaC6 and in most superconductor systems. Basically we will be implementing, within the ELK code(elk.sourceforge.net) two different methodologies to characterize thermal behavior away from the adiabatic approximation (a) a self consistent phonon calculation, where the atoms within the unit cell are displaced by a Bose-Einstein factor, such that they are able to reach a new stable minima as function of temperature (b) a fist order perburbation on the changes on the stationary forces after a time dependent perburbation
on the ionic displacements is imposed into the system.

Call for proposal

FP7-PEOPLE-2011-IIF
See other projects for this call

Coordinator

MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV
EU contribution
€ 115 773,60
Address
HOFGARTENSTRASSE 8
80539 Munchen
Germany

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Region
Bayern Oberbayern München, Kreisfreie Stadt
Activity type
Research Organisations
Administrative Contact
Claudia Gietzelt
Links
Total cost
No data