[institut] SCL Seminar: Andreas Weh, Thursday, 25th October, 14:00

[Milos Radonjic]

Dear colleagues,

you are cordially invited to the SCL seminar of the Center for the Study 
of Complex Systems, which will be held on Thursday, 25th October 2018 at 
14:00 in the library reading room "Dr. Dragan Popović" of the Institute 
of Physics Belgrade. The talk entitled

                           "Charge reconstruction and Friedel sum rule in 
heterostructures"

will be given by Andreas Weh from the Institute of physics in Augsburg. 
The abstract of the talk is provided below.

We present a self-consistent method for using real space dynamical 
mean-field theory (r-DMFT) to address local and intersite Coulomb 
interactions in heterostrcutures.  The local in-plane many-body problem 
is solved using the continuous-time quantum Monte Carlo approach for the 
Hubbard model in hybridization expansion (CT-Hyb).  The mean-field 
interlayer Coulomb potential generates a classical electrostatic problem 
solved by the Poisson equation for the multilayered geometry. Using this 
method we study half-metallic heterostructures made of coupled layers of 
single-band Hubbard models.  A similar  setup for non-magnetic 
heterostructures  turns out to be a useful playground to investigate the 
validity of the Friedel sum rule.

Best regards,
Miloš Radonjić




-- 
Milos Radonjic
Assistant Research Professor
E-mail: milos.radonjic at ipb.ac.rs
Web: http://www.scl.rs/

Phone: +381 11 3713073
Fax: +381 11 3162190

Scientific Computing Laboratory,
Institute of Physics Belgrade,
Pregrevica 118, 11080 Belgrade, Serbia