Ballistic transport in nanowires through non-magnetic or magnetic cavity Shinji Nonoyama, Yukari Honma, Miyuki Ono and Atsunobu Nakamura Eur. Phys. J. B, 88 7 (2015) 171 Published online: 06 July 2015 DOI: 10.1140/epjb/e2015-60216-1