Coercivity improvement manner and upsilon die iron oxide of upsilon die iron oxide

摘要

Coercivity improvement manner and upsilon die iron oxide of the upsilon die iron oxide grain are offered. Displacement the Fe site of particular upsilon die iron oxide with the other element, at the same time, Fe of the D site in particular upsilon die iron oxide is not displacement with the other element, coercivity improvement manner and particular upsilon die iron oxide of upsilon die iron oxide are offered.