Investigation of the argon arc binding to the lanthanated tungsten cathode M. Kh. Gadzhiev, M. A. Sargsyan, D. V. Tereshonok and A. S. Tyuftyaev EPL, 111 2 (2015) 25001 Published online: 14 August 2015 DOI: 10.1209/0295-5075/111/25001