Magnetic domain studies of permalloy wire-based structures with junctions

被引：14

作者：

Hirohata, A ^{[1
]}

Yao, CC ^{[1
]}

Leung, HT ^{[1
]}

Xu, YB ^{[1
]}

Guertler, CM ^{[1
]}

Bland, JAC ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2000年 / 36卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

mesoscopic structures; magnetic domain configuration; magnetic force microscopy; micromagnetic calculation;

D O I：

10.1109/20.908682

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：

Permalloy (Ni-80 Fe-20) wire-based structures (30 nm thick and 1 . w . 10 mum wide) with junctions (crosses, networks, H-shapes, rectangular chains and ring chains) prepared on a GaAs (100) substrate were observed in both their demagnetized and remanent states by magnetic force microscopy (MFM) in order to investigate the role of junction geometry in domain formation, Except in ring chains, two classes of domain configuration are found at the junction: (i) a domain wall-like feature due to abrupt spin rotation and (ii) a triangle-shape domain consistent with a flux closure configuration, Ring chains, on the other hand, form vortex domains at every other junction. The MFM observations are compared with micromagnetic calculations which qualitatively support the magnetic domain configurations.

引用

页码：3068 / 3070

页数：3

共 11 条

[1] OPTIMIZATION OF THIN-FILM TIPS FOR MAGNETIC FORCE MICROSCOPY [J].

BABCOCK, K ;

ELINGS, V ;

DUGAS, M ;

LOPER, S .

IEEE TRANSACTIONS ON MAGNETICS, 1994, 30 (06) :4503-4505

[2]

HIROHATA A, 1999, IEEE T MAGN, V35, P6178

[3] Switching fields and magnetostatic interactions of thin film magnetic nanoelements [J].

Kirk, KJ ;

Chapman, JN ;

Wilkinson, CDW .

APPLIED PHYSICS LETTERS, 1997, 71 (04) :539-541

[4] Magnetization reversal and magnetic anisotropy in Co network nanostructures [J].

Lee, WY ;

Leung, HT ;

Zhang, W ;

Xu, YB ;

Hirohata, A ;

Yao, CC ;

Choi, BC ;

Hasko, DG ;

Bland, JAC .

IEEE TRANSACTIONS ON MAGNETICS, 1999, 35 (05) :3475-3477

[5] Resistivity due to domain wall scattering [J].

Levy, PM ;

Zhang, SF .

PHYSICAL REVIEW LETTERS, 1997, 79 (25) :5110-5113

[6] Magnetic and transport properties of micron size magnetic particulate arrays fabricated on a 2D superconducting Nb films and sub-micron magnetic wires [J].

Otani, Y ;

Fukamichi, K ;

Kitakami, O ;

Shimada, Y ;

Pannetier, B ;

Nozieres, JP ;

Matsuda, T ;

Tonomura, A .

MAGNETIC ULTRATHIN FILMS, MULTILAYERS AND SURFACES - 1997, 1997, 475 :215-225

[7] Device physics - Magnetoelectronics [J].

Prinz, GA .

SCIENCE, 1998, 282 (5394) :1660-1663

[8] Negative domain wall contribution to the resistivity of microfabricated Fe wires [J].

Ruediger, U ;

Yu, J ;

Zhang, S ;

Kent, AD ;

Parkin, SSP .

PHYSICAL REVIEW LETTERS, 1998, 80 (25) :5639-5642

[9] Resistivity due to domain walls in Co zigzag wires [J].

Taniyama, T ;

Nakatani, I ;

Namikawa, T ;

Yamazaki, Y .

PHYSICAL REVIEW LETTERS, 1999, 82 (13) :2780-2783

[10]

XU YN, IN PRESS PHYS REV B

← 1 2 →