Vortex Dynamics in Ferromagnetic Nanoelements Observed by Micro-Hall Probes

被引：0

作者：

Scepka, T. ^{[1
]}

Soltys, J. ^{[1
]}

Precner, M. ^{[1
]}

Fedor, J. ^{[1
]}

Tobik, J. ^{[1
]}

Gregusova, D. ^{[1
]}

Gucmann, F. ^{[1
]}

Kudela, R. ^{[1
]}

Cambel, V. ^{[1
]}

机构：

[1] Slovak Acad Sci, Inst Elect Engn, Bratislava 84104, Slovakia

来源：

ACTA PHYSICA POLONICA A | 2014年 / 126卷 / 01期

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this work we measure the nucleation and annihilation of magnetic vortices in Pacman-like (PL) micromagnets prepared from Permalloy (Ni81Fe19, Py) at 77 K. Lateral dimensions of explored objects are <= 1 mu m with thickness of about 40 nm. The micromagnets are located directly on the high-sensitive micro-Hall probe based on GaAs/AlGaAs heterostructure by lift-off process. Experiments show good agreement of the magnetization reversal with the micromagnetic simulation. Other shapes of micromagnets are also considered to obtain more precise picture of the vortex dynamics.

引用

页码：390 / 391

页数：2

共 50 条

[1] Individual vortex nucleation/annihilation in ferromagnetic nanodots with broken symmetry observed by micro-Hall magnetometry
Scepka, T.
Polakovic, T.
Soltys, J.
Tobik, J.
Kulich, M.
Kudela, R.
Derer, J.
Cambel, V.
AIP ADVANCES, 2015, 5 (11):
[2] Nucleation and annihilation of magnetic vortices in Pacman-like nanodots observed by micro-Hall probes
Precner, M.
Gregusova, D.
Soltys, J.
Fedor, J.
Gucmann, F.
Tobik, J.
Kudela, R.
Cambel, V.
NINTH INTERNATIONAL CONFERENCE ON ADVANCED SEMICONDUCTOR DEVICES AND MICROSYSTEMS, 2012, : 87 - 90
[3] Magnetic imaging of ferromagnetic domains by room temperature scanning hall probe microscopy using GaAs/AlGaAs and bismuth micro-hall probes
Sandhu, A
Masuda, H
Oral, A
Bending, SJ
Inushima, T
PROCEEDINGS OF THE ELEVENTH INTERNATIONAL WORKSHOP ON THE PHYSICS OF SEMICONDUCTOR DEVICES, VOL 1 & 2, 2002, 4746 : 950 - 955
[4] Micro-Hall bar as a sensor to detect the interaction of nanoscale ferromagnetic disks and columns
Hao, Y.L.
Peeters, F.M.
Journal of Applied Physics, 2007, 101 (12):
[5] Micro-Hall bar as a sensor to detect the interaction of nanoscale ferromagnetic disks and columns
Hao, Y. L.
Peeters, F. M.
JOURNAL OF APPLIED PHYSICS, 2007, 101 (12)
[6] Planar Hall sensors for micro-Hall magnetometry
Rahm, M
Raabe, J
Pulwey, R
Biberger, J
Wegscheider, W
Weiss, D
Meier, C
JOURNAL OF APPLIED PHYSICS, 2002, 91 (10) : 7980 - 7982
[7] Room temperature scanning Hall probe microscopy using GaAs/AlGaAs and Bi micro-hall probes
Sandhu, A
Masuda, H
Oral, A
Bending, SJ
Yamada, A
Konagai, M
ULTRAMICROSCOPY, 2002, 91 (1-4) : 97 - 101
[8] Experimental characterization of a micro-hall thruster
Ito, Tsuyohito
Gascon, Nicolas
Crawford, W. Scott
Cappelli, Mark A.
JOURNAL OF PROPULSION AND POWER, 2007, 23 (05) : 1068 - 1074
[9] Magnetization dynamics of a CrO2 grain studied by micro-Hall magnetometry
Das, P.
Porrati, F.
Wirth, S.
Bajpai, A.
Huth, M.
Ohno, Y.
Ohno, H.
Mueller, J.
APPLIED PHYSICS LETTERS, 2010, 97 (04)
[10] FERROMAGNETIC HALL PROBES
MUTH, P
ZEITSCHRIFT FUR ANGEWANDTE PHYSIK, 1967, 23 (06): : 446 - &

← 1 2 3 4 5 →