Novel ultrasonic-assisted alignment of L10 FePt nanoparticles

被引：1

作者：

Foglia, S. ^{[1
]}

Notargiacomo, A. ^{[1
]}

Capobianchi, A. ^{[2
]}

Testa, A. M. ^{[2
]}

Fiorani, D. ^{[2
]}

Arrizza, L. ^{[3
]}

Veroli, C. ^{[4
]}

机构：

[1] CNR, Ist Foton & Nonotecnol, I-00146 Rome, Italy

[2] CNR, Ist Struttura Mat, I-00146 Rome, Italy

[3] Univ Aquila, Ctr Microscopia Elettron, I-67100 Laquila, Italy

[4] CNR, Ist Studio Mat Nanostrutturati, I-00146 Rome, Italy

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2009年 / 46卷 / 1-2期

关键词：

Magnetic nanoparticles; Assembling; COERCIVITY; ALLOYS;

D O I：

10.1016/j.spmi.2008.11.001

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Chemically ordered (L1(0)) FePt nanoparticles were synthesized by a microemulsion technique and the ordered phase was obtained by heating a mixture of particles and lyophilized NaCl as the separating medium, avoiding coalescence. A chloroform suspension of L1(0) FePt nanoparticles was evaporated at room temperature, assisted by ultrasonic vibration, producing the arrangement of the particles on the substrate. Parallel lines and flower-like patterns were obtained, starting from a 4 x 10(-3) M suspension and using higher dilutions, suggesting that the fast evaporation of chloroform allows the particles deposition on the substrate, following the propagation direction of the ultrasound waves and/or placement at a vibration node, depending on the concentration. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：121 / 124

页数：4

共 7 条

[1] Magnetic properties of iron and iron platinum alloys synthesized via microemulsion techniques [J].