Chains of Superparamagnetic Nanoplarticles

被引：144

作者：

Nakata, Kazuya ^{[1
]}

Hu, Ying ^{[1
]}

Uzun, Oktay ^{[1
]}

Bakr, Osman ^{[1
]}

Stellacci, Francesco ^{[1
]}

机构：

[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

ADVANCED MATERIALS | 2008年 / 20卷 / 22期

关键词：

D O I：

10.1002/adma.200800022

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Molecularly linked gamma-Fe2O3 nanoparticles chains arc produced from superparamagnetic gamma-Fe2O3 nanoparticles under zero applied magnetic field. The chains exhibit ferromagnetic interaction between gamma-Fe2O3 nanoparticles that compose them as evidenced by an increase in blocking temperature from similar to 80 K in the case of isolated nanoparticles to similar to 120 K for chains.

引用

页码：4294 / 4299

页数：6

共 56 条

[11]

Centrone A, 2007, SMALL, V3, P814, DOI [10.1002/smll.200600736, 10.1002/smll.20060073]

[12] Gold nanoelectrodes of varied size: Transition to molecule-like charging [J].

Chen, SW ;

Ingram, RS ;

Hostetler, MJ ;

Pietron, JJ ;

Murray, RW ;

Schaaff, TG ;

Khoury, JT ;

Alvarez, MM ;

Whetten, RL .

SCIENCE, 1998, 280 (5372) :2098-2101

[13] Magnetic-field-induced assemblies of cobalt nanoparticles [J].

Cheng, GJ ;

Romero, D ;

Fraser, GT ;

Walker, ARH .

LANGMUIR, 2005, 21 (26) :12055-12059

[14] Room temperature magnetic quantum cellular automata [J].

Cowburn, RP ;

Welland, ME .

SCIENCE, 2000, 287 (5457) :1466-1468

[15] Magnetic coupling induced increase in the blocking temperature of γ-Fe2O3 nanoparticles [J].

Dai, JB ;

Wang, JQ ;

Sangregorio, C ;

Fang, JY ;

Carpenter, E ;

Tang, JK .

JOURNAL OF APPLIED PHYSICS, 2000, 87 (10) :7397-7399

[16]

DEVRIES GA, 2007, P SPIE, V6768

[17] Divalent metal nanoparticles [J].

DeVries, Gretchen A. ;

Brunnbauer, Markus ;

Hu, Ying ;

Jackson, Alicia M. ;

Long, Brenda ;

Neltner, Brian T. ;

Uzun, Oktay ;

Wunsch, Benjamin H. ;

Stellacci, Francesco .

SCIENCE, 2007, 315 (5810) :358-361

[18]

Empedocles SA, 1999, ADV MATER, V11, P1243, DOI 10.1002/(SICI)1521-4095(199910)11:15<1243::AID-ADMA1243>3.0.CO

[19]

2-2

[20] Permanently linked monodisperse paramagnetic chains [J].

Furst, EM ;

Suzuki, C ;

Fermigier, M ;

Gast, AP .

LANGMUIR, 1998, 14 (26) :7334-7336

← 1 2 3 4 5 6 →