Enhanced magnetic properties of self-assembled FePt nanoparticles with MnO shell

被引：64

作者：

Kang, SS ^{[1
]}

Miao, GX ^{[1
]}

Shi, S ^{[1
]}

Jia, Z ^{[1
]}

Nikles, DE ^{[1
]}

Harrell, JW ^{[1
]}

机构：

[1] Univ Alabama, Ctr Mat Informat Technol, Tuscaloosa, AL 35487 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2006年 / 128卷 / 04期

关键词：

D O I：

10.1021/ja057343n

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Self-assembled FePt/MnO nanoparticles with different morphology and size were synthesized with a polyol process. With the MnO coating, FePt nanoparticles exhibit a high blocking temperature and magnetic moment. The low-temperature hysteresis loop of FePt nanoparticles can be shifted through the AFM pinning of the MnO shell. The aggregation of FePt nanoparticles during the L10 phase transformation can be significantly decreased by coating with the MnO shell. Copyright © 2006 American Chemical Society.

引用

页码：1042 / 1043

页数：2

共 23 条

[1] Nanorods of manganese oxalate:: a single source precursor to different manganese oxide nanoparticles (MnO, Mn2O3, Mn3O4) [J].

Ahmad, T ;

Ramanujachary, KV ;

Lofland, SE ;

Ganguli, AK .

JOURNAL OF MATERIALS CHEMISTRY, 2004, 14 (23) :3406-3410

[2] Preparation and characterization of YADH-bound magnetic nanoparticles [J].

Chen, DH ;

Liao, MH .

JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC, 2002, 16 (5-6) :283-291

[3] Effect of metal additives on L10 ordering of chemically synthesized FePt nanoparticles [J].

Harrell, JW ;

Nikles, DE ;

Kang, SS ;

Sun, XC ;

Jia, Z ;

Shi, S ;

Lawson, J ;

Thompson, GB ;

Srivastava, C ;

Seetala, NV .

SCRIPTA MATERIALIA, 2005, 53 (04) :411-416

[4] Easy axis alignment of chemically partially ordered FePt nanoparticles [J].

Kang, SS ;

Jia, ZY ;

Shi, SF ;

Nikles, DE ;

Harrell, JW .

APPLIED PHYSICS LETTERS, 2005, 86 (06) :1-3

[5] Spinel ferrite/MnO core/shell nanoparticles: Chemical synthesis of all-oxide exchange biased architectures [J].

Masala, O ;

Seshadri, R .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (26) :9354-9355

[6] Size effect on the ordering of L10 FePt nanoparticles -: art. no. 144419 [J].

Miyazaki, T ;

Kitakami, O ;

Okamoto, S ;

Shimada, Y ;

Akase, Z ;

Murakami, Y ;

Shindo, D ;

Takahashi, YK ;

Hono, K .

PHYSICAL REVIEW B, 2005, 72 (14)

[7]

ROOTH S, 1993, J MAGN MAGN MATER, V122, P329

[8] Preparation, characterization, and performance of magnetic iron-carbon composite microparticles for chemotherapy [J].

Rudge, SR ;

Kurtz, TL ;

Vessely, CR ;

Catterall, LG ;

Williamson, DL .

BIOMATERIALS, 2000, 21 (14) :1411-1420

[9]

Sauzedde F, 2000, MACROMOL SYMP, V151, P617, DOI 10.1002/1521-3900(200002)151:1<617::AID-MASY617>3.0.CO

[10]

2-T

← 1 2 3 →