Quantum mechanical simulation of magnetic alloys: the correct tight-binding Hamiltonian

June 12 2013
Types d’événements
Séminaire SPCSI
SPEC Bât 466 p.111 (1er ét.)
June 12 2013
from 11:00 AM at 1:00 PM

invited by Cyrille BARRETEAU

Abstract :

A realistic model of steel under extreme conditions, such as occurs in a fusion reactor, must include a proper description of non-collinear magnetism. In the presented work we take a bottom up approach. We derive a multi-orbital Hubbard Hamiltonian, which is exact for single atoms, and find its mean field approximation, suitable for a tight binding model.

Theory and Simulation of Materials; Imperial College London