Magnetic interactions in hematite small particles obtained by ball milling

被引:53
作者
Borzi, RA
Stewart, SJ
Punte, G
Mercader, RC
Vasquez-Mansilla, M
Zysler, RD
Cabanillas, ED
机构
[1] Natl Univ La Plata, Dept Fis, RA-1900 La Plata, Argentina
[2] Ctr Atom Bariloche, RA-8400 Bariloche, Rio Negro, Argentina
[3] Inst Balseiro, RA-8400 Bariloche, Rio Negro, Argentina
[4] Comis Nacl Energia Atom, CAC, Dept Mat, RA-1429 Buenos Aires, DF, Argentina
关键词
ball milling; hematite; nanoparticles; magnetic interactions; Mossbauer spectroscopy;
D O I
10.1016/S0304-8853(99)00495-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Pure hematite particles of an average size of 14 nm were obtained after ball milling alpha-Fe2O3 in a vertical vibrating mixer mill for 10 h. Mossbauer and magnetization measurements indicate the existence of strong interparticle interactions that can be varied by the dispersion of the particles in different ways. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:234 / 240
页数:7
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