Exchange-Coupled Bimagnetic Wustite/Metal Ferrite Core/Shell Nanocrystals: Size, Shape, and Compositional Control

被引：76

作者：

Bodnarchuk, Maryna I. ^{[1
]}

Kovalenko, Maksym V. ^{[1
]}

Groiss, Heiko ^{[1
]}

Resel, Roland ^{[2
]}

Reissner, Michael ^{[3
]}

Hesser, Guenter ^{[1
]}

Lechner, Rainer T. ^{[1
]}

Steiner, Walter ^{[3
]}

Schaeffler, Friedrich ^{[1
]}

Heiss, Wolfgang ^{[1
]}

机构：

[1] Univ Linz, Inst Solid State Phys & Semicond, A-4040 Linz, Austria

[2] Graz Univ Technol, Inst Solid State Phys, A-8010 Graz, Austria

[3] Vienna Univ Technol, Inst Solid State Phys, A-1040 Vienna, Austria

来源：

SMALL | 2009年 / 5卷 / 20期

基金：

奥地利科学基金会;

关键词：

crystal growth; iron; magnetic properties; nanomaterials; synthesis; MAGNETIC-PROPERTIES; ORGANOMETALLIC SYNTHESIS; OXIDE NANOCRYSTALS; NANOPARTICLES; MOSSBAUER; GROWTH; NUCLEATION; COFE2O4; BIAS; FEO;

D O I：

10.1002/smll.200900635

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Iron oxide-based exchange-coupled nanomagnets consisting of antiferromagnetic wustite (FexO) cores covered by ferrimagnetic metal ferrite shells (see figure) are chemically synthesized in a simple one-pot procedure. The synthesis allows independent size, shape, and compositional control. The strong exchange coupling at the core/shell interface results in unique magnetic properties. © 2009 Wiley-VCH Verlag GmbH & Co.

引用

页码：2247 / 2252

页数：6

共 56 条

[1] A facile thermolysis route to monodisperse ferrite nanocrystals [J].

Bao, Ningzhong ;

Shen, Liming ;

Wang, Yuhsiang ;

Padhan, Prahallad ;

Gupta, Arunava .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (41) :12374-+

[2] Antiferromagnetic MnO nanoparticles with ferrimagnetic Mn3O4 shells:: Doubly inverted core-shell system [J].

Berkowitz, A. E. ;

Rodriguez, G. F. ;

Hong, J. I. ;

An, K. ;

Hyeon, T. ;

Agarwal, N. ;

Smith, D. J. ;

Fullerton, E. E. .

PHYSICAL REVIEW B, 2008, 77 (02)

[3] Exchange anisotropy - a review [J].

Berkowitz, AE ;

Takano, K .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 200 (1-3) :552-570

[4] Influence of iron oleate complex structure on iron oxide nanoparticle formation [J].

Bronstein, Lyudmila M. ;

Huang, Xinlei ;

Retrum, John ;

Schmucker, Abrin ;

Pink, Maren ;

Stein, Barry D. ;

Dragnea, Bogdan .

CHEMISTRY OF MATERIALS, 2007, 19 (15) :3624-3632

[5] Topologically controlled growth of magnetic-metal-functionalized semiconductor oxide nanorods [J].

Casavola, Marianna ;

Grillo, Vincenzo ;

Carlino, Elvio ;

Giannini, Cinzia ;

Gozzo, Fabia ;

Fernandez Pinel, Enrique ;

Angel Garcia, Miguel ;

Manna, Liberato ;

Cingolani, Roberto ;

Davide Cozzoli, Pantaleo .

NANO LETTERS, 2007, 7 (05) :1386-1395

[6] The concept of delayed nucleation in nanocrystal growth demonstrated for the case of iron oxide nanodisks [J].

Casula, MF ;

Jun, YW ;

Zaziski, DJ ;

Chan, EM ;

Corrias, A ;

Alivisatos, AP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (05) :1675-1682

[7] Shape evolution of single-crystalline iron oxide nanocrystals [J].

Cheon, JW ;

Kang, NJ ;

Lee, SM ;

Lee, JH ;

Yoon, JH ;

Oh, SJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (07) :1950-1951

[8] Critical size for exchange bias in ferromagnetic-antiferromagnetic particles [J].

Dobrynin, AN ;

Ievlev, DN ;

Temst, K ;

Lievens, P ;

Margueritat, J ;

Gonzalo, J ;

Afonso, CN ;

Zhou, SQ ;

Vantomme, A ;

Piscopiello, E ;

Van Tendeloo, G .

APPLIED PHYSICS LETTERS, 2005, 87 (01)

[9] Superparamagnetic magnetite colloidal nanocrystal clusters [J].

Ge, Jianping ;

Hu, Yongxing ;

Biasini, Maurizio ;

Beyermann, Ward P. ;

Yin, Yadong .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (23) :4342-4345

[10] An organometallic approach for very small maghemite nanoparticles: Synthesis, characterization, and magnetic properties [J].

Glaria, Arnaud ;

Kahn, Myrtil L. ;

Falqui, Andrea ;

Lecante, Pierre ;

Colliere, Vincent ;

Respaud, Marc ;

Chaudret, Bruno .

CHEMPHYSCHEM, 2008, 9 (14) :2035-2041

← 1 2 3 4 5 6 →