Magnetic switching of single vortex permalloy elements

被引:168
作者
Schneider, M [1 ]
Hoffmann, H [1 ]
Zweck, J [1 ]
机构
[1] Univ Regensburg, Inst Expt & Angew Phys, D-93040 Regensburg, Germany
关键词
D O I
10.1063/1.1410873
中图分类号
O59 [应用物理学];
学科分类号
摘要
Magnetic vortices play an important role in the switching behavior of micron- and submicron-sized ferromagnetic elements. We have prepared submicron permalloy elements by a combination of electron-beam lithography and liftoff technique on electron transparent membrane substrates. The magnetization reversal mechanism and the remanent magnetization configuration were observed by means of Lorentz transmission electron microscopy. In remanence, the investigated structures form a vortex configuration. In situ magnetizing experiments showed the possibility of adjusting the sense of magnetization rotation by introducing a slight geometric asymmetry to the otherwise circular nanostructures. (C) 2001 American Institute of Physics.
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页码:3113 / 3115
页数:3
相关论文
共 12 条
[1]   Transmission electron microscopies of magnetic microstructures [J].
Chapman, JN ;
Scheinfein, MR .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 200 (1-3) :729-740
[2]   Property variation with shape in magnetic nanoelements [J].
Cowburn, RP .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2000, 33 (01) :R1-R16
[3]   Magnetic tunneling applied to memory [J].
Daughton, JM .
JOURNAL OF APPLIED PHYSICS, 1997, 81 (08) :3758-3763
[4]   Magnetic domain structures in arrays of submicron Co dots studied with magnetic force microscopy [J].
Demand, M ;
Hehn, M ;
Ounadjela, K ;
Stamps, RL ;
Cambril, E ;
Cornette, A ;
Rousseaux, F .
JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :5111-5113
[5]   Finite size effects in patterned magnetic permalloy films [J].
Gubbiotti, G ;
Albini, L ;
Carlotti, G ;
De Crescenzi, M ;
Di Fabrizio, E ;
Gerardino, A ;
Donzelli, O ;
Nizzoli, F ;
Koo, H ;
Gomez, RD .
JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :5633-5635
[6]   Investigation of the influence of edge structure on the micromagnetic behavior of small magnetic elements [J].
Herrmann, M ;
McVitie, S ;
Chapman, JN .
JOURNAL OF APPLIED PHYSICS, 2000, 87 (06) :2994-2999
[7]   Low-frequency magnetic noise in micron-scale magnetic tunnel junctions [J].
Ingvarsson, S ;
Xiao, G ;
Parkin, SSP ;
Gallagher, WJ ;
Grinstein, G ;
Koch, RH .
PHYSICAL REVIEW LETTERS, 2000, 85 (15) :3289-3292
[8]   Role of vortices in magnetization reversal of rectangular NiFe elements [J].
Kirk, KJ ;
Scheinfein, MR ;
Chapman, JN ;
McVitie, S ;
Gillies, MF ;
Ward, BR ;
Tennant, JG .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2001, 34 (02) :160-166
[9]   Magnetization pattern of ferromagnetic nanodisks [J].
Raabe, J ;
Pulwey, R ;
Sattler, R ;
Schweinböck, T ;
Zweck, J ;
Weiss, D .
JOURNAL OF APPLIED PHYSICS, 2000, 88 (07) :4437-4439
[10]   Switching stability of magnetic tunnel junctions with an artificial antiferromagnet [J].
Schmalhorst, J ;
Brückl, H ;
Reiss, G ;
Kinder, R ;
Gieres, G ;
Wecker, J .
APPLIED PHYSICS LETTERS, 2000, 77 (21) :3456-3458