1 Correction to: Applied Physics A (2019) 125:528 https://doi.org/10.1007/s00339-019-2802-7

Dear readers,

The authors want to replace the previously published acknowledgment of their paper. It should read as follows:

Acknowledgements

This project was supported by Deanship of Scientific Research and College of Science Research Center, King Saud University, Saudi Arabia.

Please note this change in the original article.