[1] J Christiansen, C Schultheiss. Z. Physik A, 290, 35(1979).

[2] W Cross, H Yin, W He, K Ronald, A D R Phelps, L C Pitchford. J. Phys. D: Appl. Phys., 40, 1953(2007).

[3] K Frank, E Boggasch, J Christiansen, A Goertler. IEEE T. Plasma Sci., 16, 317(1988).

[4] Yu H Akhmadeev, V V Denisov, N N Koval, S S Kovalsky, I V Lopatin, P M Schanin, V V Yakovlev. Plasma Phys. Rep+., 43, 67(2017).

[5] R Tkotz, A Gortler, J Christiansen, S Dollinger. IEEE T. Plasma Sci., 23, 309(1995).

[6] W He, L Zhang, D Bowes, H Yin, K Ronald, A D R Phelps, A W Cross. Appl. Phys. Lett., 107(2015).

[7] Y D Korolev, N N Koval. J. Phys. D: Appl. Phys., 51(2018).

[8] D Bowes, H Yin, W He, K Ronald, A D R Phelps, D Chen, P Zhang, X Chen, D Li, A W Cross. IEEE T. Plasma Sci., 42, 2826(2014).

[9] H Yin, A W Cross, W He, A D R Phelps, K Ronald, D Bowes, C W Robertson. Phys. Plasmas, 16(2009).

[10] J Zhao, H Yin, L Zhang, W He, Q Zhang, A D R Phelps, A W Cross. Phys. Plasmas, 24(2017).

[11] Y Yin, W He, L Zhang, H Yin, C W Robertson, A. W Cross. IEEE T. Electron Dev., 63, 512(2016).

[12] G X Shu, H Yin, L Zhang, J P Zhao, G Liu, A D R Phelps, A W Cross, W He. IEEE Electron Dev. Lett, 39, 432(2018).

[13] M Stetter, P Felsner, J Christiansen, A Gortler, G Hintz, T Mehr, K Stark, R Tkotz. IEEE T. Plasma Sci., 23, 283(1995).

[14] V Arsov, K Frank. IEEE T. Plasma Sci., 35, 83(2007).

[15] J Hu, J L Rovey, W Zhao. Rev. Sci. Instrum., 88(2017).

[16] J Zhang, X Liu. Plasma Chem. Plasma P., 37, 1211(2017).

[17] X W Gu, L Meng, Y Yan, Y Q Sun. J. Infrared Millim. TE., 30, 1083(2009).

[18] , H K Dwivedi, U N Pal. IEEE T. Electron Dev., 65, 4607(2018).

[19] J Zhang, X Liu, Q Zhang. Phys. Plasmas, 24(2017).

[20] , U N Pal. IEEE T. Electron Dev., 65, 1542(2018).

[21] S O Cetiner, P Stoltz, P Messmer, J L Cambier. J. Appl. Phys., 103(2008).

[22] U N Pal, J Prajapati, N Kumar, R Prakash. Indian J. Phys., 89, 951(2015).

[23] Z Zhang, Y Yin, L J Bi, Z W Chang, C P Xu, B Wang, L Meng. Phys. Plasmas, 24(2017).

[24] C Nieter, J R Cary. J. Comput. Phys., 196, 448(2004).

[25] T Mehr, H Arenz, P Bickel, J Christiansen, K Frank, A Gortler, F Heine, D Hofmann, R Kowalewicz, M Schlaug. IEEE T. Plasma Sci., 23, 324(1995).