COMBINED FIELD ION AND SCANNING TUNNELING MICROSCOPE T. Sakurai, T. Hashizurne, I. Kamiya, Y. Hasegawa, A. Sakai, A. Kobayashi, J. Matsui, S. Takahashi, E. Kono and H. Watanabe J. Phys. Colloques, 48 C6 (1987) C6-79-C6-84 DOI: 10.1051/jphyscol:1987613