Magnetic properties of iron pnictides from spin-spiral calculations
DIPC Seminars
- Speaker
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Dr. Alexander Yaresko, Max Planck Institute for Solid State Research, Stuttgart, Germany
- When
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2010/06/23
14:00 - Place
- Donostia International Physics Center (DIPC).Paseo Manuel de Lardizabal, 4 (nearby the Facultad de Quimica), Donostia
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Doping dependence of magnetic properties of novel iron-based superconductors
LaFeAsO, BaFe2As2, and LiFeAs is studied using the band-structure approach.
The stability of collinear anti-ferromagnetic order in these compounds is
discussed. It is shown that the magnetic properties of iron pnictides cannot
be described by the classical Heisenberg model with nearest- and next-nearest-
neighbor exchange interactions.