Structural ordering effects in Fe nanoparticle two- and three-dimensional arrays

被引:23
作者
Farrell, D
Ding, Y
Majetich, SA [1 ]
Sanchez-Hanke, C
Kao, CC
机构
[1] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA
[2] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA
关键词
D O I
10.1063/1.1688644
中图分类号
O59 [应用物理学];
学科分类号
摘要
Two- and three-dimensional arrays were prepared by self-assembly of iron nanoparticles with similar magnetic moments and interparticle separations, and characterized both magnetically and structurally. The rapid magnetization decay in the three-dimensional (3D) arrays suggests a relaxation mechanism than has been previously reported, perhaps associated with the existence of domain walls within large structurally ordered regions. Small angle x-ray scattering indicates the presence of such regions in the 3D arrays. (C) 2004 American Institute of Physics.
引用
收藏
页码:6636 / 6638
页数:3
相关论文
共 16 条
[1]  
CALIEBE WA, 1997, AIP C P, V417, P6
[2]   Magnetic relaxation in finite two-dimensional nanoparticle ensembles [J].
Denisov, SI ;
Lyutyy, TV ;
Trohidou, KN .
PHYSICAL REVIEW B, 2003, 67 (01)
[3]   Continuous convective assembling of fine particles into two-dimensional arrays on solid surfaces [J].
Dimitrov, AS ;
Nagayama, K .
LANGMUIR, 1996, 12 (05) :1303-1311
[4]   Dynamics of an interacting particle system: Evidence of critical slowing down [J].
Djurberg, C ;
Svedlindh, P ;
Nordblad, P ;
Hansen, MF ;
Bodker, F ;
Morup, S .
PHYSICAL REVIEW LETTERS, 1997, 79 (25) :5154-5157
[5]   Preparation and characterization of monodisperse Fe nanoparticles [J].
Farrell, D ;
Majetich, SA ;
Wilcoxon, JP .
JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (40) :11022-11030
[6]  
Farrell D, 2002, MATER RES SOC SYMP P, V707, P269
[7]   Magnetic properties of dipolar interacting single-domain particles [J].
Kechrakos, D ;
Trohidou, KN .
PHYSICAL REVIEW B, 1998, 58 (18) :12169-12177
[8]   Small-angle x-ray-scattering study of silver-nanocrystal disorder-order phase transitions [J].
Korgel, BA ;
Fitzmaurice, D .
PHYSICAL REVIEW B, 1999, 59 (22) :14191-14201
[9]   Magnetic relaxation of interacting Co clusters:: Crossover from two- to three-dimensional lattices -: art. no. 217205 [J].
Luis, F ;
Petroff, F ;
Torres, JM ;
García, LM ;
Bartolomé, J ;
Carrey, J ;
Vaurès, A .
PHYSICAL REVIEW LETTERS, 2002, 88 (21) :2172051-2172054
[10]   Effect of the structure of cobalt nanocrystal organization on the collective magnetic properties [J].
Petit, C ;
Russier, V ;
Pileni, MP .
JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (38) :10333-10336