NiMnGa nanostructures produced by electron beam lithography and Ar-ion etching D. Auernhammer, M. Schmitt, M. Ohtsuka and M. Kohl Eur. Phys. J. Special Topics, 158 (2008) 249-254 Published online: 01 May 2008 DOI: 10.1140/epjst/e2008-00683-1