Canted antiferromagnetism in copper oxide nanoparticles synthesized by the reverse-micellar route

被引:60
作者
Ahmad, T
Chopra, R
Ramanujachary, KV
Lofland, SE
Ganguli, AK [1 ]
机构
[1] Indian Inst Technol, Dept Chem, New Delhi 110016, India
[2] Rowan Univ, Ctr Mat Res & Educ, Dept Chem & Phys, Glassboro, NJ 08028 USA
关键词
Cu oxide; magnetic nanoparticles; canted antiferromagnetism; chemical synthesis;
D O I
10.1016/j.solidstatesciences.2004.11.029
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Copper oxide nanoparticles were synthesized by water-in-oil microemulsions with two different apolar solvents (isooctane and n-octane). Our studies on the samples show that the grain size is highly dependent on the nature of non-polar solvent, 25-30 and 80-90 nm sized nanoparticles with isooctane and n-octane, respectively. The Neel temperature of CuO nanoparticles obtained from isooctane is about 80 K. For the larger particles obtained from n-octane, the transition temperature shifts to higher temperature (similar to 220 K) near that of the bulk. (c) 2005 Elsevier SAS. All rights reserved.
引用
收藏
页码:891 / 895
页数:5
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