Dichotomy between Large Local and Small Ordered Magnetic Moments in Iron-Based Superconductors

Hansmann P, Arita R, Toschi A, Sakai S, Sangiovanni G, Held K (2010)


Publication Type: Journal article

Publication year: 2010

Journal

Book Volume: 104

Journal Issue: 19

DOI: 10.1103/PhysRevLett.104.197002

Abstract

We study a four-band model for iron-based superconductors within the local density approximation combined with 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.

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How to cite

APA:

Hansmann, P., Arita, R., Toschi, A., Sakai, S., Sangiovanni, G., & Held, K. (2010). Dichotomy between Large Local and Small Ordered Magnetic Moments in Iron-Based Superconductors. Physical Review Letters, 104(19). https://doi.org/10.1103/PhysRevLett.104.197002

MLA:

Hansmann, Philipp, et al. "Dichotomy between Large Local and Small Ordered Magnetic Moments in Iron-Based Superconductors." Physical Review Letters 104.19 (2010).

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