Magnetization reversal in cobalt nanowires with combined magneto-crystalline and shape anisotropies

被引：19

作者：

Li, Hongjian ^{[1
]}

Wu, Qiong ^{[1
]}

Yue, Ming ^{[1
]}

Peng, Yi ^{[1
]}

Li, Yuqing ^{[1
]}

Liang, Jingming ^{[1
]}

Wang, Dajun ^{[1
]}

Zhang, Jiuxing ^{[1
]}

机构：

[1] Beijing Univ Technol, Minist Educ China, Key Lab Adv Funct Mat, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2019年 / 481卷

基金：

中国国家自然科学基金;

关键词：

Co nanowires; Coercivity; Magneto-crystalline easy axis deviation; Magnetization reversal; ANGULAR-DEPENDENCE; COERCIVITY; ARRAYS; 3D; NANOSTRUCTURES; TEMPERATURE; MAGNETS;

D O I：

10.1016/j.jmmm.2019.02.094

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present study, we present new experimental and calculated results of Co nanowires synthesized by the solvothermal method. The coercivity of 8.7 kOe and the energy product of 31.4 MGOe were obtained for wires of average diameters of 20 nm and average lengths of 200 nm. The experimental and numerical results of nanowires were discussed. Micromagnetic simulations were conducted to study the dependence of the magnetic properties on the nanowire aspect ratios, diameters, and various magneto-crystalline easy axis deviation angles from the long axis of Co nanowires. The calculation with a magneto-crystalline easy axis deviations from long axis show a better accordance with experimental results. The state graphs for reversal modes versus the magnetocrystalline easy axis deviation angles in Co nanowires were presented.

引用

页码：104 / 110

页数：7

共 30 条

[1] TEMPERATURE AND MAGNETIZATION DEPENDENCES OF MAGNETO-CRYSTALLINE ANISOTROPY ENERGY OF NI
ONO, F
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1977, 43 (04) : 1194 - 1199
[2] Magnetization reversal in nanowires with a spiral shape
Westphalen, A.
Remhof, A.
Zabel, H.
[J]. JOURNAL OF APPLIED PHYSICS, 2008, 104 (01)
[3] Effect of cobalt addition on the magneto-crystalline anisotropy parameter of sintered NiZn ferrites evaluated from magnetization curves
Frajer, G.
Isnard, O.
Chazal, H.
Delette, G.
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2019, 473 : 92 - 98
[4] Magnetization reversal dynamics in Co nanowires with competing magnetic anisotropies
Pal, Semanti
Saha, Susmita
Polley, Debanjan
Barman, Anjan
[J]. SOLID STATE COMMUNICATIONS, 2011, 151 (24) : 1994 - 1998
[5] Magnetization reversal in cobalt and nickel electrodeposited nanowires
Ounadjela, K
Ferre, R
Louail, L
George, JM
Maurice, JL
Piraux, L
Dubois, S
[J]. JOURNAL OF APPLIED PHYSICS, 1997, 81 (08) : 5455 - 5457
[6] Magnetization reversal studies in structurally tailored cobalt nanowires
Kaur, Daljit
Chaudhary, Sujeet
Pandya, Dinesh K.
Gupta, Rekha
Kotnala, R. K.
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2013, 344 : 72 - 78
[7] RELATION BETWEEN MAGNETO-CRYSTALLINE ANISOTROPY AND MAGNETIZATION OF A FE-NI INVAR ALLOY
ONO, F
MITSUOKA, K
YAMADA, O
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1977, 42 (01) : 345 - 346
[8] Shape anisotropy and magnetization modulation in hexagonal cobalt nanowires
Liu, Zuwei
Chang, Pai-Chun
Chang, Chia-Chi
Galaktionov, Evgeniy
Bergmann, Gerd
Lu, Jia G.
[J]. ADVANCED FUNCTIONAL MATERIALS, 2008, 18 (10) : 1573 - 1578
[9] Magneto-optical study of the magnetization reversal process of Fe nanowires
Schmitte, T
Theis-Bröhl, K
Leiner, V
Zabel, H
Kirsch, S
Carl, A
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (32) : 7525 - 7538
[10] Giant Magnetoresistance Effect Detection of Magnetization Reversal in Single Crystalline Nanowires
Yamamoto, H.
Kasatani, Y.
Yamaguchi, A.
Miyajima, H.
[J]. INTERNATIONAL CONFERENCE ON MAGNETISM (ICM 2009), 2010, 200

← 1 2 3 →