As you may know, I started working at Max Planck Institute for iron research since February 2017. In short, my research domain is all about solid metallic materials with impurities, such as solute atoms and/or structural defects, such as vacancies, dislocations or grain boundaries. In particular I am working on following projects right now.
New page to see scientific articles is here
Magnetic interactions and Heisenberg model (CEA Saclay/French national research agency)
According to RKKY model, the energy due the spins of the conduction electrons of two atoms can be calculated by taking their product, as the spin of the one atom acts as effective magnetic field on the other atom. The simplified model which describes this phenomenon is the Heisenberg model, which has been extensively used and studied, in the case of pure elements. If there are impurities, however, the problem becomes much more complicated, as the periodicity of the structure gets lost.
Manganese segregation around dislocations (University of Illinois)
In order to produce stiff and flexible steels, a certain amount of manganese atoms are inserted into the material. Through the vacancy diffusion mechanism, these atoms segregate towards structural defects such as dislocations or grain boundaries. The properties of the material
Carbon Cottrell atmospheres (University of Lyon, INSA de Lyon)
Internal friction of composite iron (Yonsei university)
Stabilization of grain boundaries by solute pinning (University of São Paulo)