... trỳc mng tinh th ca hp kim Heusler y (a) v bỏn hp kim, Heusler (b) 16 H ỡnh 1.7 ng cong t nhit ca cỏc hp kim NisoMnsiAli (a), Ni oCoĂoMri33A l 17 (b), N i 45 Co 5M n 32 li (c) ... 10 [24] Ni2 Mni.xInx - 10 [17] Nè5oMn3 4)8 lni 4)2 B 2,9 - 18 [1 ] 1M ISO 200 250 300 Temperature (KJ Temperature (K) Temperature (K) Hỡnh 1.9 bin thiờn entropy t Sm ca hp kim Nil 7C00 3Mni+xA].x ... Nè4iCOgMn3 2)5 Ali 7)5 0,98 340 10 [23] Nè4iCo 9Mn3 2Al18 ,1 300 10 [23] Ni 1^Coo^Mii 522A1o,78 - 351 10 [24] N i 1^Coo^Mni 24AI0J 0,99 354 10 [24] N i 1jCoo^Mni 26Aloj4 ,1 358 10 [24] NiijCoo^Mni^Aloj...