Construction of hysteresis loops of single domain elements and coupled permalloy ring arrays by magnetic force microscopy

2003 ◽  
Vol 93 (10) ◽  
pp. 8540-8542 ◽  
Author(s):  
Xiaobin Zhu ◽  
P. Grütter ◽  
V. Metlushko ◽  
Y. Hao ◽  
F. J. Castaño ◽  
...  
Keyword(s):  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Hysteresis Loops ◽  
Single Domain ◽  
Force Microscopy

scholarly journals Magnetic vortex chirality determination via local hysteresis loops measurements with magnetic force microscopy

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Marco Coïsson ◽  
Gabriele Barrera ◽  
Federica Celegato ◽  
Alessandra Manzin ◽  
Franco Vinai ◽  
...  
Keyword(s):  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Hysteresis Loops ◽  
Magnetic Vortex ◽  
Force Microscopy

Giant magnetoimpedance in CoP electrodeposited microtubes

2000 ◽  
Vol 15 (3) ◽  
pp. 751-755 ◽  
Author(s):  
J. P. Sinnecker ◽  
J. M. García ◽  
A. Asenjo ◽  
M. Vázquez ◽  
A. García-Arribas
Keyword(s):  
Magnetic Anisotropy ◽  
Layer Thickness ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Hysteresis Loops ◽  
Giant Magnetoimpedance ◽  
Microscopy Imaging ◽  
Giant Magnetoimpedance Effect ◽  
Force Microscopy ◽  
Radial Anisotropy

Co90P10 amorphous microtubes with thickness ranging from 2 to 19 μm were electrodeposited onto Cu wire substrates. Samples exhibit radial magnetic anisotropy as deduced from hysteresis loops and magnetic force microscopy imaging. These microtubes show quite noticeable giant magnetoimpedance effect (GMI) with amplitude depending on layer thickness and frequency. The hysteresis in the GMI curves is small, which can be ascribed to the radial anisotropy. Such small hysteresis is of importance for technological applications.

Magnetic Force Microscopy on Co/Pt Multilayers

2009 ◽  
Vol 152-153 ◽  
pp. 241-244
Author(s):  
V. Karoutsos ◽  
Panagiotis Poulopoulos ◽  
M. Angelakeris ◽  
E.T. Papaioannou ◽  
Paul Fumagalli ◽  
...  
Keyword(s):  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Magnetic Domain ◽  
Hysteresis Loops ◽  
Electron Beam Evaporation ◽  
Film Plane ◽  
X Ray Diffraction ◽  
Saturation Field ◽  
Force Microscopy ◽  
Magneto Optic

Co/Pt multilayers reside among the best candidates for perpendicular magneto-optic recording. In this work, Co/Pt multilayers were prepared by electron-beam evaporation under ultrahigh vacuum conditions on polyimide. X-ray diffraction measurements revealed the high quality of multilayer stacking. Magneto-optic polar Kerr effect experiments were used in order to obtain magnetization hysteresis loops of the films. We have studied the magnetic-domain morphology on the surface of the films via Magnetic Force Microscopy. The field applied during these measurements was 2.3 kOe oriented perpendicular to the film plane; this field seems to stabilize and enhance out-of-plain stripe domains against in plain domains that may be expected from magnetization curves. Finally, we observed that when the applied field approaches the magnetic saturation field, then the domain morphology turns to be dominated by bubble domains.

scholarly journals Hysteresis loops of individual Co nanostripes measured by magnetic force microscopy

2011 ◽  
Vol 6 (1) ◽  
pp. 407 ◽  
Author(s):  
Miriam Jaafar ◽  
Luis Serrano-Ramón ◽  
Oscar Iglesias-Freire ◽  
Amalio Fernández-Pacheco ◽  
Manuel Ricardo Ibarra ◽  
...  
Keyword(s):  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Hysteresis Loops ◽  
Force Microscopy

Magnetic force microscopy of single-domain single-crystal iron particles with uniaxial surface anisotropy

1996 ◽  
Vol 79 (8) ◽  
pp. 5851 ◽  
Author(s):  
R. M. H. New ◽  
R. F. W. Pease ◽  
R. L. White ◽  
R. M. Osgood ◽  
K. Babcock
Keyword(s):  
Single Crystal ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Single Domain ◽  
Surface Anisotropy ◽  
Iron Particles ◽  
Force Microscopy

Imaging, Manipulation, and Spectroscopic Measurements of Nanomagnets by Magnetic Force Microscopy

MRS Bulletin ◽  
2004 ◽  
Vol 29 (7) ◽  
pp. 457-462 ◽  
Author(s):  
Xiaobin Zhu ◽  
Peter Grütter
Keyword(s):  
Magnetic Force Microscopy ◽  
Magnetic Particles ◽  
Magnetic Force ◽  
Operation Mode ◽  
Hysteresis Loops ◽  
Hysteresis Curve ◽  
Stray Field ◽  
Small Particles ◽  
Spectroscopic Measurements ◽  
Force Microscopy

AbstractMagnetic force microscopy (MFM) is a well-established technique for imaging the magnetic structures of small magnetic particles. In cooperation with external magnetic fields, MFM can be used to study the magnetization switching mechanism of submicrometer-sized magnetic particles. Various MFM techniques allow the measurement of a hysteresis curve of an individual particle, which can then be compared to ensemble measurements. The advantage of using MFM-constructed hysteresis loops is that one can in principle understand the origin of dispersion in switching fields. It is also possible to directly observe the correlation between magnetic particles through careful imaging and control of the external magnetic field. In all of these measurements, attention needs to be paid to avoid artifacts that result from the unavoidable magnetic tip stray field. Control can be achieved by optimizing the MFM operation mode as well as the tip parameters. It is even possible to use the tip stray field to locally and reproducibly manipulate the magnetic-moment state of small particles. In this article, we illustrate these concepts and issues by studying various lithographically patterned magnetic nanoparticles, thus demonstrating the versatility of MFM for imaging, manipulation, and spectroscopic measurements of small particles.

Magnetic force microscopy of combined reaction-processed polycrystalline equiatomic bulk L10 FePd

2009 ◽  
Vol 24 (8) ◽  
pp. 2677-2687 ◽  
Author(s):  
Paul R. Ohodnicki ◽  
Anirudha Desphande ◽  
Jorg M.K. Wiezorek ◽  
Timothy J. Klemmer
Keyword(s):  
Grain Size ◽  
Grain Boundaries ◽  
Domain Structure ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Single Domain ◽  
Interaction Domain ◽  
Force Microscopy ◽  
Average Grain Size ◽  
Interaction Domains

In this work, the correlation between magnetic-domain structure and microstructure in combined reaction-processed equiatomic L10 FePd has been investigated using magnetic force microscopy. The microstructure consisted of approximately equiaxed grains with an average grain size of ∼1 μm and a grain size distribution ranging from below the theoretical critical domain size (Dcrit∼0.2–0.3 μm) up to approximately 5 μm in diameter. The domain structure was characterized as “mixed” in nature, consisting of smaller single-domain grains, larger multidomain grains, and a larger scale interaction domain structure encompassing many grains. The domain boundaries separating interaction domains tended to lie along grain boundaries, and it is proposed that the observed interaction domains should be considered in descriptions of the magnetization and magnetization reversal behavior of this material. In particular, pinning of interaction domain walls by intragranular features of the microstructure such as grain boundaries and single-domain grains could play a role in the measured coercivities.

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