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Regular version of the site

Article

Quantum Size Effect in Superconducting Aluminum Films

Physics of the Solid State. 2019. Vol. 61. No. 9. P. 1559-1562.
Arutyunov K., Sedov E., Golokolenov I., V. V. Zav’yalov, Konstantinidis G., Stavrinidis A., Stavrinidis G., Vasiliadis I., Kekhagias T., Dimitrakopulos G. P., Komninu F., Kroitoru M. D., Shanenko A. A.

High-quality aluminum films on GaAs substrates are studied experimentally. The critical temperature of superconductivity is found to increase markedly with decreasing the film thickness. The observed phenomenon is considered as a manifestation of the quantum confinement effect, which affects both the density of states and the electron–phonon interaction.