journal article·2019-03-01Open access

In-plane electrical impedance as a probe for the electron nematicity of BaFe2As2

Fan Wu, Yongqiang Li, Dongliang Gong, Wenliang Zhang, Tao Xie, Jun Yuan, Qirui Yang, Kai Chen, Huiqian Luo, Junming Liu, Jinsong Zhu

AIP Advances· Volume 9· Issue 3

Abstract

In-plane electrical impedance has been examined in as-grown single crystals of BaFe2As2, one of the parent compounds of iron-based superconductors. From the results, it is found that the real part of the impeditivity, namely the AC resistivity, reveals the in-plane anisotropy of the material without any applied uniaxial strain. The imaginary part, i.e., the reactivity, also indicates strong in-plane anisotropy and is linearly dependent on the electrical frequency. Our study demonstrates that electrical impedance is a new and effective method of probing the electron nematicity of iron-based superconductors.
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Research context

OpenAlex topics: Iron-based superconductors research · Intellectual Capital and Performance Analysis · Corporate Taxation and Avoidance

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Affiliations

School of Science, Nanjing University of Science and Technology 1 , Nanjing 210094, P.R. China

National Laboratory of Solid State Microstructures, Nanjing University 2 , Nanjing 210093, P.R. China

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences 3 , Beijing 100190, P.R. China

Funding

National Natural Science Foundation of China

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