Two-dimensional superconductivity in transparent In<sub>2-y</sub>Sn<sub>y</sub>O<sub>3-δ</sub> (ITO)

ORAL

Abstract

Electrochemically reduced transparent indium-tin-oxide (In2-ySnyO3-δ) films exhibit two-dimensional superconductivity. The thickness of the superconducting layer fabricated on the surface of the host ITO film is within a fraction of a nanometer depending on the structure of the host film surface. The onset of superconductivity and optical transparency can be tuned in a wide range, 0-5 K and 30-85%, respectively. Here, we present the film preparation conditions, transport properties, and advantages of a superconducting layer fabricated on the top of the host material (ITO) for various applications involving the interaction of light with the quantum state.

*This research work is supported by NATO Science for Peace and Security Programme, project SPS G6082 and NASA Early Stage Innovations (ESI23) program, project 80NSSC24K0689.

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Publication: 1. A. E. Aliev, K. Xiong, K. Cho, and M. B. Salamon, "Reversible superconductivity in electrochromic indium-tin oxide films," Appl. Phys. Lett., vol. 101, no. 25, Dec. 2012, Art. no. 252603, doi: 10.1063/1.4772536.
2. A. E. Aliev, M. Jung de Andrade, and M. B. Salamon, "Paramagnetic Meissner effect in electrochemically doped indium-tin oxide films," J. Supercond. Nov. Magn., vol. 29, no. 7, pp. 1793-1803, July 2016, doi: 10.1007/s10948-016-3501-7.
3. A. Aliev and M. Belogolovskii, "Towards transparent superconductor electronics," Nat. Rev. Electr. Eng., vol. 1, no. 9, pp. 563–564, Sept. 2024, doi: 10.1038/s44287-024-00092-z.
4. A. Parra, A. Aliev, M. Belogolovskii, E. Zhitlukhina, M. Poláčková, M. Gregor, and T. Plecenik, "Probing intercalated indium-tin oxide films by non-local resistance measurements," IEEE Trans. Appl. Supercond., vol. 34, no 3, May 2024, Art no. 3800104 (2024).
doi: 10.1109/TASC.2023.3344559.
5. D. Menesenko, O. Feia, A. Shapovalov, V. Tarenkov, I. Gavrysh, E. Zhitlukhina, M. Belogolovskii, A. Parra, and A. Aliev, "Two-phase/two-gap scenario in heavily reduced superconducting ITO films revealed by point-contact spectroscopy," Low Temp. Phys., vol. 50, no. 8, August 2024, pp. 688-692, doi: 10.1063/10.0027926.

Presenters

  • Ali E. Aliev

    • University of Texas at Dallas

Authors

  • Ali E. Aliev

    • University of Texas at Dallas

  • Aaron E Parra

    • University of Texas at Dallas

  • Meiyi Li

    • University of Texas at Dallas

  • Andrii P Shapovalov

    • Ukrainian Physical Society

  • Mikhail O Belogolovskii

    • National Academy of Sciences of Ukraine

  • Manuel E Quevedo-Lopez

    • University of Texas at Dallas