Effects of Dy3+ ions on the magnetic and transport properties of La-1.3-yDy(y)Sr(1.7)Mn(2)O(7) | |
Ma, M ; Kou, ZQ ; Di, NL ; Cheng, ZH ; Li, QA | |
刊名 | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
![]() |
2005 | |
卷号 | 285期号:3页码:439 |
关键词 | GIANT MAGNETORESISTANCE MANGANESE OXIDES |
ISSN号 | 0304-8853 |
通讯作者 | Ma, M: Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, POB 603, Beijing 100080, Peoples R China. |
中文摘要 | The crystallization kinetics of amorphous Fe68.5Si13.5B9Cu1Nb3C5 (at. pct) melt-spun ribbons were studied by the DSC method in the mode of continuous heating. The apparent activation energy E-p1 and E-p2 (373.07+/-7.92 and 518.75+/-21.35 kJ/mol, respectively) derived from the Kissinger plots were calculated by the peak temperatures TO, T-p2, which display a strong dependence on the heating rates. The crystallization behavior during isothermal annealing at 823 K for 1, 5, 10 h and 973 K for 5 h were investigated using XRD and TEM. The results show that crystallization behavior becomes completely different from that of FINEMET. It is not bcc alpha-Fe (Si) but metastable fcc gamma-Fe (Si) that participates in the first crystallization step combining the appearance of Fe23B6 and Nb2B. Therefore, the addition of C promotes the combination of Fe and B. Fe3.5B is participated in the second step together with the disappearing of Fe23B6, which indicates that transition Fe23B6-->Fe3.5B+Fe2B presumably happens. gamma-Fe (Si) with peculiar stability cannot transform into nano-sized a-Fe (Si) crystals until the amorphous ribbons were annealed for 5 h at 973 K. |
收录类别 | SCI |
语种 | 英语 |
公开日期 | 2013-09-17 |
内容类型 | 期刊论文 |
源URL | [http://ir.iphy.ac.cn/handle/311004/36701] ![]() |
专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
推荐引用方式 GB/T 7714 | Ma, M,Kou, ZQ,Di, NL,et al. Effects of Dy3+ ions on the magnetic and transport properties of La-1.3-yDy(y)Sr(1.7)Mn(2)O(7)[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2005,285(3):439. |
APA | Ma, M,Kou, ZQ,Di, NL,Cheng, ZH,&Li, QA.(2005).Effects of Dy3+ ions on the magnetic and transport properties of La-1.3-yDy(y)Sr(1.7)Mn(2)O(7).JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,285(3),439. |
MLA | Ma, M,et al."Effects of Dy3+ ions on the magnetic and transport properties of La-1.3-yDy(y)Sr(1.7)Mn(2)O(7)".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 285.3(2005):439. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论