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Magnetically as-prepared powders demonstrate a clear superparamagnetic behavior that changes to ferromagnetic one after annealing. These properties are quite different from the ones of mechanically dispersed powders and rapidly quenched ribbons of the same composition. The spark-erosion conditions, particularly cooling rates up to 109\u2009K\/s, lead to the formation of the mixed phase state, much higher atomic disorder, and to the appearance of different types of structural inhomogeneities.<\/jats:p>","DOI":"10.1063\/1.4764017","type":"journal-article","created":{"date-parts":[[2012,11,6]],"date-time":"2012-11-06T00:33:45Z","timestamp":1352162025000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":16,"title":["Structure and magnetic properties of highly dispersed Ni-Mn-Ga powders prepared by spark-erosion"],"prefix":"10.1063","volume":"112","author":[{"given":"A. 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