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1. Superconductor–insulator transition in two-dimensional indium–indium-oxide composite

   https://doi.org/10.1073/pnas.2015970118  

   Hen, Bar ; Zhang, Xinyang ; Shelukhin, Victor ; Kapitulnik, Aharon ; Palevski, Alexander ( December 2020 , Proceedings of the National Academy of Sciences)

   The magnetic-field–tuned superconductor-to-insulator transition was studied in a hybrid system of superconducting indium islands, deposited on an indium oxide (InOx) thin film, which exhibits global superconductivity at low magnetic fields. Vacuum annealing was used to tune the conductivity of the InOx film, thereby tuning the inergrain coupling and the nature of the transition. The hybrid system exhibits a “giant” magnetoresistance above the magnetic-field–tuned superconductor-to-insulator transition (H-SIT), with critical behavior similar to that of uniform InOx films but at much lower magnetic fields, that manifests the duality between Cooper pairs and vortices. A key feature of this hybrid system is the separation between the quantum criticality and the onset of nonequilibrium behavior.

    

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2. Size Effects on the Cross-Plane Thermal Conductivity of Transparent Conducting Indium Tin Oxide and Fluorine Tin Oxide Thin Films

   https://doi.org/10.1109/TCPMT.2018.2863648  

   Olson, David H. ; Rost, Christina M. ; Gaskins, John T. ; Szwejkowski, Chester J. ; Braun, Jeffrey L. ; Hopkins, Patrick E. ( January 2019 , IEEE Transactions on Components, Packaging and Manufacturing Technology)
3. Controlling surface adatom kinetics for improved structural and optical properties of high indium content aluminum indium nitride

   https://doi.org/10.1063/1.5142295  

   Engel, Zachary ; Clinton, Evan A. ; Matthews, Christopher M. ; Doolittle, W. Alan ( March 2020 , Journal of Applied Physics)
4. Aqueous Processing and Spray Deposition of Polymer-Wrapped Tin-Doped Indium Oxide Nanocrystals as Electrochromic Thin Films

   https://doi.org/10.1021/acs.chemmater.0c02399  

   Maho, Anthony ; Saez Cabezas, Camila A. ; Meyertons, Kendall A. ; Reimnitz, Lauren C. ; Sahu, Swagat ; Helms, Brett A. ; Milliron, Delia J. ( October 2020 , Chemistry of Materials)
5. Quantum magnetoconductivity characterization of interface disorder in indium-tin-oxide films on fused silica

   https://doi.org/10.1038/s43246-021-00137-y  

   Look, David C. ; Leedy, Kevin D. ; Santia, Marco D. ; Badescu, Stefan C. ( December 2021 , Communications Materials)

   null (Ed.)

   Abstract Disorder arising from random locations of charged donors and acceptors introduces localization and diffusive motion that can lead to constructive electron interference and positive magnetoconductivity. At very low temperatures, 3D theory predicts that the magnetoconductivity is independent of temperature or material properties, as verified for many combinations of thin-films and substrates. Here, we find that this prediction is apparently violated if the film thickness d is less than about 300 nm. To investigate the origin of this apparent violation, the magnetoconductivity was measured at temperatures T  = 15 – 150 K in ten, Sn-doped In 2 O 3 films with d  = 13 – 292 nm, grown by pulsed laser deposition on fused silica. We observe a very strong thickness dependence which we explain by introducing a theory that postulates a second source of disorder, namely, non-uniform interface-induced defects whose number decreases exponentially with the interface distance. This theory obeys the 3D limit for the thickest samples and yields a natural figure of merit for interface disorder. It can be applied to any degenerate semiconductor film on any semi-insulating substrate. 

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