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Dichotomy between large local and small ordered magnetic moment in Iron-based superconductors by Hansmann, P.; Arita, R.; Toschi, A.; Sakai, S.; Sangiovanni, G.; Held, K. is a scholarly article available to read on EtoBox.

What is Dichotomy between large local and small ordered magnetic moment in Iron-based superconductors about?

We study a four band model for iron-based superconductors within local density approximation + dynamical mean field theory (LDA+DMFT). This successfully reproduces the results of models which take As p degrees of freedom explicitly into account and has several physical advantages over the standard five d-band model. Our findings reveal that the new superconductors are more strongly correlated than their single-particle properties suggest. Two-particle correlation functions unveil the dichotomy between local and ordered magnetic moments in these systems, calling for further experiments to better resolve the short time scale spin dynamics.

Author

Hansmann, P.; Arita, R.; Toschi, A.; Sakai, S.; Sangiovanni, G.; Held, K.

Published

2010

Language

EN