Magnetization reversal of iron nanoparticles studied by submicron Hall magnetometry

被引：6

作者：

Li, YQ ^{[1
]}

Xiong, P

von Molnár, S

Ohno, Y

Ohno, H

机构：

[1] Florida State Univ, MARTECH, Tallahassee, FL 32306 USA

[2] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA

[3] Tohoku Univ, Elect Commun Res Inst, Sendai, Miyagi 980, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2003年 / 93卷 / 10期

关键词：

D O I：

10.1063/1.1557827

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetization of an array of 16 elongated iron nanoparticles with diameter of similar to7 nm and height of similar to100 nm has been studied with a submicron semiconductor Hall magnetometer. Details of the magnetization hysteresis curves and the angular dependence of switching fields are examined. The results indicate that the magnetization reversal in these cylindrical nanoparticles cannot be described with a single coherent rotation mode. (C) 2003 American Institute of Physics.

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页码：7912 / 7914

页数：3

相关论文

共 13 条

[1] Langevin simulation of thermally activated magnetization reversal in nanoscale pillars [J].

Brown, G ;

Novotny, MA ;

Rikvold, PA .

PHYSICAL REVIEW B, 2001, 64 (13)

[2] GROWTH OF HIGH-ASPECT-RATIO NANOMETER-SCALE MAGNETS WITH CHEMICAL-VAPOR-DEPOSITION AND SCANNING-TUNNELING-MICROSCOPY [J].

KENT, AD ;

SHAW, TM ;

VONMOLNAR, S ;

AWSCHALOM, DD .

SCIENCE, 1993, 262 (5137) :1249-1252

[3] PROPERTIES AND MEASUREMENT OF SCANNING TUNNELING MICROSCOPE FABRICATED FERROMAGNETIC PARTICLE ARRAYS (INVITED) [J].

KENT, AD ;

VONMOLNAR, S ;

GIDER, S ;

AWSCHALOM, DD .

JOURNAL OF APPLIED PHYSICS, 1994, 76 (10) :6656-6660

[4] Hall magnetometry on a single iron nanoparticle [J].

Li, YQ ;

Xiong, P ;

von Molnár, S ;

Wirth, S ;

Ohno, Y ;

Ohno, H .

APPLIED PHYSICS LETTERS, 2002, 80 (24) :4644-4646

[5] DIRECT DEPOSITION OF MAGNETIC DOTS USING A SCANNING TUNNELING MICROSCOPE [J].

MCCORD, MA ;

AWSCHALOM, DD .

APPLIED PHYSICS LETTERS, 1990, 57 (20) :2153-2155

[6] Study of the magnetization reversal in individual nickel nanowires [J].

Pignard, S ;

Goglio, G ;

Radulescu, A ;

Piraux, L ;

Dubois, S ;

Declémy, A ;

Duvail, JL .

JOURNAL OF APPLIED PHYSICS, 2000, 87 (02) :824-829

[7] Magnetism of Fe, Co and Ni nanowires in self-assembled arrays [J].

Sellmyer, DJ ;

Zheng, M ;

Skomski, R .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (25) :R433-R460

[8] Magnetic localization in transition-metal nanowires [J].

Skomski, R ;

Zeng, H ;

Zheng, M ;

Sellmyer, DJ .

PHYSICAL REVIEW B, 2000, 62 (06) :3900-3904

[9] A MECHANISM OF MAGNETIC HYSTERESIS IN HETEROGENEOUS ALLOYS [J].

STONER, EC ;

WOHLFARTH, EP .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1948, 240 (826) :599-642

[10] Magnetoresistance of ferromagnetic nanowires [J].

Wegrowe, JE ;

Kelly, D ;

Franck, A ;

Gilbert, SE ;

Ansermet, JP .

PHYSICAL REVIEW LETTERS, 1999, 82 (18) :3681-3684