Magnetic properties of ball milled Fe-40Al at.% alloys

被引:35
作者
Amils, X [1 ]
Nogues, J [1 ]
Surinach, S [1 ]
Baro, MD [1 ]
Munoz, JS [1 ]
机构
[1] Univ Autonoma Barcelona, Dept Fis, Lab Propietats Magnet & Term, Bellaterra 08193, Spain
关键词
Fe-Al; ball milling; order-disorder; magnetic transitions;
D O I
10.1109/20.706409
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A direct correlation between the lattice parameter and the saturation magnetization, during the disordering (ball milling) and posterior reordering (annealing) processes, has been found in Fe-40Al at.% compounds. These results indicate that the paramagnetic-ferromagnetic-paramagnetic transitions induced by ball milling and subsequent annealing could be related to the changes in volume, and not only to nearest neighbors effects as is commonly assumed. Moreover, these alloys have been found to become spin glass at low temperatures, independently of their structural state (ordered or disordered).
引用
收藏
页码:1129 / 1131
页数:3
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