Reversible superconductivity in electrochromic indium-tin oxide films

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Reversible superconductivity in electrochromic indium-tin oxide films

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Title: Reversible superconductivity in electrochromic indium-tin oxide films
Author(s):
Aliev, Ali E.;
Xiong, K.;
Cho, K.;
Salamon, Myron Ben, 1939- (UT Dallas)
Date Created: 2012-10-04
Format: Text
Item Type: Article
Keywords: Show Keywords
Abstract: Transparent conductive indium tin oxide (ITO) thin films, electrochemically intercalated with sodium or other cations, show tunable superconducting transitions with a maximum Tc at 5 K. The transition temperature and the density of states, D(EF) (extracted from the measured Pauli susceptibility χp) exhibit the same dome shaped behavior as a function of electron density. Optimally intercalated samples have an upper critical field ≈ 4 T and Δ/kBTc ≈ 2.0. Accompanying the development of superconductivity, the films show a reversible electrochromic change from transparent to colored and are partially transparent (orange) at the peak of the superconducting dome. This reversible intercalation of alkali and alkali earth ions into thin ITO films opens diverse opportunities for tunable, optically transparent superconductors.
Publisher: American Institute of Physics
Source: Applied Physics Letters
Persistent Link: http://hdl.handle.net/10735.1/2502
http://dx.doi.org/10.1063/1.4772536
Bibliographic Citation: Aliev, Ali E., Ka Xiong, Kyeongjae Cho, and M. B. Salamon. “Reversible Superconductivity in Electrochromic Indium-tin Oxide Films.” Applied Physics Letters 101, no. 25 (2012): 252603.
Terms of Use: This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

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