Identification of a Ni-vacancy defect in Ni-Mn-Z (Z=Ga, Sn, In): An experimental and DFT positron-annihilation study

This work is supported by Eusko Jaurlaritza under Grants No. IT-1005-16 and No. IT-756-13 and by Spanish Ministry of Economy and Competitiveness under Grant No. MAT2015- 65165-C2-R (MINECO/FEDER). I. Unzueta also wants to acknowledge Eusko Jaurlaritza for Grant No. PRE-2014-214.