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Using Controlled Disorder To Probe The Interplay Between Charge Order And Superconductivity In Nbse2, Kyuil Cho, M. Kończykowski, Serafim Teknowijoyo, Makariy A. Tanatar, J. Guss, P. B. Gartin, John M. Wilde, A. Kreyssig, Robert Mcqueeney, Alan I. Goldman, V. Mishra, P. J. Hirschfeld, Ruslan Prozorov
Using Controlled Disorder To Probe The Interplay Between Charge Order And Superconductivity In Nbse2, Kyuil Cho, M. Kończykowski, Serafim Teknowijoyo, Makariy A. Tanatar, J. Guss, P. B. Gartin, John M. Wilde, A. Kreyssig, Robert Mcqueeney, Alan I. Goldman, V. Mishra, P. J. Hirschfeld, Ruslan Prozorov
A. I. Goldman
The interplay between superconductivity and charge-density wave (CDW) in 2H-NbSe2 is not fully understood despite decades of study. Artificially introduced disorder can tip the delicate balance between two competing long-range orders, and reveal the underlying interactions that give rise to them. Here we introduce disorder by electron irradiation and measure in-plane resistivity, Hall resistivity, X-ray scattering, and London penetration depth. With increasing disorder, the superconducting transition temperature, Tc, varies non-monotonically, whereas the CDW transition temperature, TCDW, monotonically decreases and becomes unresolvable above a critical irradiation dose where Tcdrops sharply. Our results imply that the CDW …