Simulation on Formation of Single Magnetic Domain and Magnetization Reversal of Ferromagnetic Particles

被引：0

作者：

Mo, Xiaojing ^{[1
]}

Yao, Jincai ^{[1
]}

Xiang, Hui ^{[1
]}

Li, Guoqing ^{[1
]}

Ishio, Shunji ^{[2
]}

Saito, Hitoshi ^{[2
]}

Shima, Toshiyuki ^{[3
,4
]}

Takanashi, Koki ^{[4
]}

机构：

[1] Southwestern Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China

[2] Akita Univ, Venture Business Lab, Akita 0108502, Japan

[3] Tohoku Gakuin Univ, Fac Engn, Sendai, Miyagi 9858537, Japan

[4] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

来源：

PROCEEDINGS OF 2ND INTERNATIONAL SYMPOSIUM ON PHYSICS AND HIGH-TECH INDUSTRY, 4TH INTERNATIONAL SYMPOSIUM ON MAGNETIC INDUSTRY, 1ST SHENYANG FORUM FOR DEVELOPMENT AND COOPERATION OF HIGH-TECH INDUSTRY IN NORTHEAST ASIA | 2009年

关键词：

FILMS; COERCIVITY;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The processes of spontaneous magnetization and magnetization reversal of L1(0) FePt nanoparticle were simulated by using the OOMMF micromagnetic software. Simulation results show that an L1(0) FePt particle with size 70 nm x 70 nm x 5 nm will form single-domain structure spontaneously with the absence of applied field. The coercivity is 121 kOe, slightly smaller than the ideal coherent rotation. This is consistent with the experimental coercivity of exceeding 100 kOe. The mechanism of magnetization reversal is a nucleation type.

引用

页码：143 / +

页数：2

共 50 条

[1] MEASUREMENT OF THE DYNAMICS OF THE MAGNETIZATION REVERSAL IN INDIVIDUAL SINGLE-DOMAIN FERROMAGNETIC PARTICLES
LEDERMAN, M
SCHULTZ, S
OZAKI, M
PHYSICAL REVIEW LETTERS, 1994, 73 (14) : 1986 - 1989
[2] Simulation of magnetization switching in biaxial single-domain ferromagnetic particles
Kou, Xuekun, 2000, IEEE, Piscataway, NJ, United States (36)
[3] Simulation of magnetization switching in biaxial single-domain ferromagnetic particles
Kou, XK
Novotny, MA
Rikvold, PA
IEEE TRANSACTIONS ON MAGNETICS, 2000, 36 (01) : 231 - 240
[4] Reversal time of the magnetization of single-domain ferromagnetic particles with cubic anisotropy in the presence of a uniform magnetic field
Kalmykov, Yuri P.
Journal of Applied Physics, 2007, 101 (09):
[5] Reversal time of the magnetization of single-domain ferromagnetic particles with cubic anisotropy in the presence of a uniform magnetic field
Kalmykov, Yuri P.
JOURNAL OF APPLIED PHYSICS, 2007, 101 (09)
[6] Magnetization reversal in single ferromagnetic Ni and Co particles
Hasselbach, K
Wernsdorfer, W
Mailly, D
Barbara, B
Benoit, A
CZECHOSLOVAK JOURNAL OF PHYSICS, 1996, 46 : 2137 - 2138
[7] THE REMANENT MAGNETIZATION OF SINGLE DOMAIN FERROMAGNETIC PARTICLES
WOHLFARTH, EP
TONGE, DG
PHILOSOPHICAL MAGAZINE, 1957, 2 (23) : 1333 - 1344
[8] Reversal time of the magnetization of single-domain ferromagnetic particles with mixed uniaxial and cubic anisotropy
Coffey, William T.
Dejardin, Pierre-Michel
Kalmykov, Yuri P.
PHYSICAL REVIEW B, 2009, 79 (05)
[9] Simulation of the magnetization reversal of an ensemble of single-domain particles in measurements with a continuous sweep of the magnetic field or temperature
Timopheev, A. A.
Kalita, V. M.
Ryabchenko, S. M.
LOW TEMPERATURE PHYSICS, 2008, 34 (06) : 446 - 457
[10] Relaxation of the magnetization in uniaxial single-domain ferromagnetic particles driven by a strong ac magnetic field
D´jardin, Pierre-Michel
Kalmykov, Yuri P.
Journal of Applied Physics, 2009, 106 (12):

← 1 2 3 4 5 →