Magnetization Configurations in NiFe Slotted Rings Studied by Magneto-Optical Kerr Effect and Magnetic Force Microscopy

2012 ◽  
Vol 48 (4) ◽  
pp. 1269-1272 ◽  
Author(s):  
Marco Madami ◽  
Diego Bisero ◽  
Gianluca Gubbiotti ◽  
Silvia Tacchi ◽  
Giovanni Carlotti ◽  
...  
Keyword(s):  
Kerr Effect ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Optical Kerr Effect ◽  
Force Microscopy ◽  
Magneto Optical Kerr Effect

Peculiarities in Optical and Magneto-Optical Spectra of GaMnSb Layers Grown by Laser Ablation

2012 ◽  
Vol 190 ◽  
pp. 562-565 ◽  
Author(s):  
E.A. Gan'shina ◽  
L.L. Golik ◽  
V.I. Kovalev ◽  
Z.E. Kun’kova ◽  
M.P. Temiryazeva ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Kerr Effect ◽  
Magnetic Force Microscopy ◽  
Room Temperature ◽  
Magnetic Force ◽  
Interband Transitions ◽  
Spectral Ellipsometry ◽  
Force Microscopy ◽  
Mn Content ◽  
Laser Ablation Technique

Optical and magneto-optical properties of GaMnSb layers fabricated on GaAs (001) substrates by laser ablation technique were studied using spectral ellipsometry (E =1.24-3.25 eV) and the transversal Kerr effect (TKE) (E = 0.5 4.2 eV) as well as atomic and magnetic force microscopy. Spectra of the constituents of the diagonal components of the permittivity tensor as well as TKE depended substantially on the layer fabrication conditions. At room temperature a strong resonant band was observed in the TKE spectra for the GaMnSb layers with low Mn content in the energy range E 0.5-1.5 eV. This resonant TKE band was explained by excitation of surface plasmons in MnSb nanoclusters, which arose during the growth of the layers. In the energy region E >1.5 eV the TKE spectra were related to interband transitions in MnSb inclusions.

The Remagnetization Process Feature of Trilayer Nanodisks

2010 ◽  
Vol 168-169 ◽  
pp. 249-252
Author(s):  
A.V. Ognev ◽  
M.E. Stebliy ◽  
A.S. Samardak ◽  
A. Nogaret ◽  
L.A. Chebotkevich
Keyword(s):  
Kerr Effect ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Magnetic Moments ◽  
Force Microscopy ◽  
Vortex States ◽  
Reversal Process ◽  
Ferromagnetic Layers

The remagnetization process and the distribution of magnetic moments in arrays of trilayer nanodisks Co(10 nm)/Pd(0.8 nm)/Co(10 nm) with diameters D = 200 and 400 nm were studied by the magnetooptical Kerr effect (MOKE) and magnetic force microscopy (MFM). It is shown that in the nanodisks with D = 200 nm the magnetisation reversal process can be carried out by the vortex states or one-domain configurations with the antiparallel orientation of moments in the adjacent ferromagnetic layers. In arrays of nanodisks with D = 400 nm the vortex states are formed only.

scholarly journals Domain Structure and Reversal Mechanisms through Diffracted Magneto-optics in Fe80B20 Microsquare Arrays

2020 ◽  
Vol 6 (4) ◽  
pp. 50
Author(s):  
Ruben Álvarez-Sánchez ◽  
Jose Miguel García-Martín ◽  
Fernando Briones ◽  
José Luis Costa-Krämer
Keyword(s):  
Domain Structure ◽  
Kerr Effect ◽  
Magnetic Force ◽  
Predictive Power ◽  
Diffraction Theory ◽  
Force Microscopy ◽  
Domain Structures ◽  
Magnetic Elements ◽  
Distribution Moments ◽  
Magneto Optical Kerr Effect

In this paper, the predictive power of diffracxtive magneto-optics concerning domain structure and reversal mechanisms in ordered arrays of magnetic elements is demonstrated. A simple theoretical model based on Fraunhoffer diffraction theory is used to predict the magnetisation reversal mechanisms in an array of magnetic elements. Different domain structures and simplified models (or educated guesses) of the associated reversal mechanisms produce marked differences in the spatial distributions of the magnetisation. These differences and the associated magnetisation distribution moments are experimentally accessible through conventional and diffractive magneto-optical Kerr effect measurements. The domain and magnetisation reversal predictions are corroborated with Magnetic Force Microscopy (MFM) measurements.

scholarly journals Manipulation of magnetic vortex parameters in disk-on-disk nanostructures with various geometry

2015 ◽  
Vol 6 ◽  
pp. 697-703 ◽  
Author(s):  
Maxim E Stebliy ◽  
Alexander G Kolesnikov ◽  
Alexey V Ognev ◽  
Alexander S Samardak ◽  
Ludmila A Chebotkevich
Keyword(s):  
Vortex Core ◽  
Kerr Effect ◽  
Magnetic Force ◽  
Magnetic Nanostructures ◽  
Magnetic Vortex ◽  
Motion Path ◽  
Microscopy Imaging ◽  
Micromagnetic Simulations ◽  
Force Microscopy ◽  
Magneto Optical Kerr Effect

Magnetic nanostructures in the form of a sandwich consisting of two permalloy (Py) disks with diameters of 600 and 200 nm separated by a nonmagnetic interlayer are studied. Magnetization reversal of the disk-on-disk nanostructures depends on the distance between centers of the small and big disks and on orientation of an external magnetic field applied during measurements. It is found that manipulation of the magnetic vortex chirality and the trajectory of the vortex core in the big disk is only possible in asymmetric nanostructures. Experimentally studied peculiarities of a motion path of the vortex core and vortex parameters by the magneto-optical Kerr effect (MOKE) magnetometer are supported by the magnetic force microscopy imaging and micromagnetic simulations.

Study of MFM Application in Semiconductor Failure Analysis

2004 ◽  
Author(s):  
Way-Jam Chen ◽  
Lily Shiau ◽  
Ming-Ching Huang ◽  
Chia-Hsing Chao
Keyword(s):  
Magnetic Field ◽  
Failure Analysis ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Current Flow ◽  
Force Microscopy ◽  
The Magnetic Field ◽  
A Current

Abstract In this study we have investigated the magnetic field associated with a current flowing in a circuit using Magnetic Force Microscopy (MFM). The technique is able to identify the magnetic field associated with a current flow and has potential for failure analysis.

Photo-Induced Magneto-Optical Kerr Effect in Europium Sulfide EuS

2020 ◽  
Vol 62 (9) ◽  
pp. 1619-1623
Author(s):  
P. A. Usachev ◽  
V. N. Katz ◽  
V. V. Pavlov
Keyword(s):  
Kerr Effect ◽  
Optical Kerr Effect ◽  
Europium Sulfide ◽  
Magneto Optical Kerr Effect
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