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arXiv · 0809.3874

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

Guang-Ming Zhang·Yue-Hua Su·Zhong-Yi Lu·Zheng-Yu Weng·Dung-Hai Lee·Tao Xiang
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Abstract

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.

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Guang-Ming Zhang, Yue-Hua Su, Zhong-Yi Lu, Zheng-Yu Weng, Dung-Hai Lee, Tao Xiang. 2009-02-09. Universal linear-temperature dependence of static magnetic susceptibility in iron-pnictides. https://doi.org/10.1209/0295-5075/86/37006

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