Li Xiao-Jing, Zhao De-Gang, He Xiao-Guang, Wu Liang-Liang, Li Liang, Yang Jing, Le Ling-Cong, Chen Ping, Liu Zong-Shun, Jiang De-Sheng. Influence of different annealing temperature and atmosphere on the Ni/Au Ohmic contact to p-GaNJ. Acta Physica Sinica, 2013, 62(20): 206801. DOI: 10.7498/aps.62.206801