Seminarios del IFLP y del Departamento

SEMINARIOS DEL IFLP y DEL DEPARTAMENTO

MARTES 17 de MARZO 11hs – AULA CHICA

TÍTULO: "Magnetism from first-principles"

EXPOSITOR: Prof. Athur Ernst Max Planck Institute of Microstructure Physics, Halle, Germany

RESUMEN:

Development and engineering of new magnetic materials is one of the main goals in modern condensed matter physics. Thereby, first-principles simulations play a significant role in the design of new materials. Nowadays ab-initio methods based on the density functional theory can provide very accurate information about magnetic properties of realistic systems and has become a major supplement and alternative to the experiment. In my talk I present a first-principles approach, based on the multiple-scattering theory which provides explicitly the Green function that can be used in many applications such as spectroscopy, transport and many-body physics. Combined with the coherent-potential approximation this method can be used as well for the description of alloys and pseudo-alloys. Magnetic properties can be studied with both adiabatic and dynamical approaches that outline will be discussed in my presentation. The both approaches will be illustrated by several examples for bulk materials, surfaces, and interfaces.

Lugar: Aula Chica del Departamento de Física de la Facultad de Ciencias Exactas; calle 49 y 115

Contacto: manias@fisica.unlp.edu.ar