ANTIFERROMAGNETIC ALLOY, AND MAGNETIC DEVICE USING ANTIFERROMAGNETIC ALLOY

摘要

PROBLEM TO BE SOLVED: To solve the problem that the operating temperature of a magnetic device using, as a member, an Mn-type antiferromagnetic alloy for magnetic device becomes elevated and trouble is brought about in thermal stability.;SOLUTION: The antiferromagnetic alloy is an alloy containing elements of Mn and Ir and has a composition represented by Mn_100-xIr_x (where 40≤x≤52 is satisfied) and also has L1₀-type regularly arranged crystals. Because this antiferromagnetic alloy has a Neel temperature higher than that of the conventional antiferromagnetic alloy, the magnetic device with excellent thermal stability can be obtained.;COPYRIGHT: (C)2005,JPO&NCIPI