Universal linear-temperature dependence of static magnetic susceptibility in iron-pnictides

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A universal linear-temperature dependence of the uniform magnetic susceptibility has been observed in the nonmagnetic normal state of iron-pnictides. This non-Pauli and non-Curie-Weiss-like paramagnetic behavior cannot be understood within a pure itinerant picture. We argue that it results from the existence of a wide antiferromagnetic fluctuation window in which the local spin-density-wave correlations exist but the global directional order has not been established yet.
4 pages, 2 figures

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Strongly Correlated Electrons, Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/230573

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0809.3874
 http://arxiv.org/abs/0809.3874
 EPL 86, 37006 (2009).
 doi:10.1209/0295-5075/86/37006

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arXiv