Ngày tải lên :
18/06/2016, 13:36
... liệu TC (K) La2/3Ca1/3MnO3- 24 2 La0,67Ca0 ,33 MnO3 [8] 26 0 La2/3Ca1/3Mn0,9Zn0,1O3- 21 0 La0,67Ca0 ,33 Mn0,9Zn0,1O3 [3] 22 0 La2/3Ca1/3Mn0,9Cu0,1O3- 20 1 La0,67Ca0 ,33 Mn0,9Cu0,1O3 [4] 20 0 Bng 3. 4 ta thy: ... La2/3Ca1/3Mn0,9Zn0,1O3- v La2/3Ca1/3Mn0,9Cu0,1O3- so vi mu La2/3Ca1/3MnO3- a() Mu b() c() V (3) La2/3Ca1/3MnO3- 5,447 7,7 12 5,4 53 22 9,065 La2/3Ca1/3Mn0,9Cu0,1O3- 5,469 7,741 5,476 23 1 , 82 La2/3Ca1/3Mn0,9Zn0,1O3- ... = h2 l k + + a2 b2 c2 41 (3. 2) Hỡnh 3. 1 Gin pha Rnghen ca mu La2/3Ca1/3MnO3- v La2/3Ca1/3Mn0,9Zn0,1O3- 2. 2715 30 0 20 0 Cng 1.5704 1.9 23 9 100 2. 221 4 3. 851 1 .35 99 20 30 40 50 60 70 () Hỡnh 3. 2...