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arXiv · 1803.01956

Using electron irradiation to probe iron - based superconductors

Kyuil Cho·M. Konczykowski·S. Teknowijoyo·M. A. Tanatar·R. Prozorov
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Abstract

High energy electron irradiation is an efficient way to create vacancy-interstitial Frenkel pairs in crystal lattice, thereby inducing controlled non-magnetic point - like scattering centers. In combination with London penetration depth and resistivity measurements, the irradiation was particularly useful as a phase - sensitive probe of the superconducting order parameter in iron - based superconductors lending strongest support to sign - changing $s_{\pm}$ pairing. Here we review the key results on the effect of electron irradiation in iron-based superconductors.

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Kyuil Cho, M. Konczykowski, S. Teknowijoyo, M. A. Tanatar, R. Prozorov. 2018-03-05. Using electron irradiation to probe iron - based superconductors. https://doi.org/10.1088/1361-6668%2Faabfa8

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