Effect of magnetic-field intensity near an intermediate electrode on the discharge characteristics of a Hall thruster with a double-peaked magnetic fieldHong Li, Yongjie Ding, Lei Wang, Haotian Fan, Peng Li, Liqiu Wei and Daren YuEur. Phys. J. D, 73 9 (2019) 198DOI: https://doi.org/10.1140/epjd/e2019-100162-6