Efficient field emission from structured gold nanowire cathodesA. Navitski, G. Müller, V. Sakharuk, T. W. Cornelius, C. Trautmann and S. KarimEur. Phys. J. Appl. Phys., 48 3 (2009) 30502DOI: https://doi.org/10.1051/epjap/2009167