STM study of high temperature superconducting thin films

High temperature superconducting thin films have been deposited using the pulsed laser deposition method onto SrTiO3 single crystalline substrates. The substrate temperature was kept at 750°C and the deposited film thickness was 200nm (sample provided by University of Basel).

From the STM experiment, typical defect mediated spiral growth hills can be observed. The step height of the growth hills correspond to the unit cell of the superconductor material YBa2Cu3O7 of 1.2nm. The tunneling parameters were -1nA tunneling current and -0.8V gap voltage.


180x180nm image; z-range 12nm

STM measurements on HTSC (YBa2Cu3O7-x) thin films (raw data)

For reference see also Gerber et al. Nature 350 (1991) 279

View application note (PDF)

While you are here – are you interested in learning more about AFM?

Nanosurf regularly holds free webinars and live demonstrations about applications, modes, and AFM instruments. To plan our future offerings, please take a moment to let us know which of the following topics you would be interested in.

Generated with MOOJ Proforms Version 1.5
*Required information.

Other Nanosurf applications