On the target surface temperature during dc magnetron sputtering Leonid R. Shaginyan, Vasily R. Shaginyan, Anatoly I. Kuzmichev and Mikhail I. Mironov Eur. Phys. J. Appl. Phys., 92 1 (2020) 10801 Published online: 02 October 2020 DOI: 10.1051/epjap/2020200098