The surface composition and spin polarization of NiMnSb epitaxial thin films D. Ristoiu, J. P. Nozières, C. N. Borca, T. Komesu, H.-k. Jeong and P. A. Dowben Europhys. Lett., 49 5 (2000) 624-630 Published online: 01 September 2002 DOI: 10.1209/epl/i2000-00196-9