scholarly journals Micromagnetic simulation of magnetization reversal process and stray field behavior in Fe thin film wire

2007 ◽  
Vol 102 (12) ◽  
pp. 123908 ◽  
Author(s):  
Munekazu Ohno ◽  
Kanji Yoh
Keyword(s):  
Thin Film ◽  
Magnetization Reversal ◽  
Micromagnetic Simulation ◽  
Stray Field ◽  
Reversal Process ◽  
Field Behavior ◽  
Magnetization Reversal Process

Investigation of magnetization reversal process in pinned CoFeB thin film by in-situ Lorentz TEM

2018 ◽  
Vol 27 (4) ◽  
pp. 047502
Author(s):  
Ke Pei ◽  
Wei-Xing Xia ◽  
Bao-Min Wang ◽  
Xing-Cheng Wen ◽  
Ping Sheng ◽  
...  
Keyword(s):  
Thin Film ◽  
Magnetization Reversal ◽  
Reversal Process ◽  
Magnetization Reversal Process

scholarly journals Micromagnetic simulation for the magnetization reversal process of Nd-Fe-B hot-deformed nanocrystalline permanent magnets

AIP Advances ◽  
2017 ◽  
Vol 7 (5) ◽  
pp. 056234 ◽  
Author(s):  
Hiroshi Tsukahara ◽  
Kaoru Iwano ◽  
Chiharu Mitsumata ◽  
Tadashi Ishikawa ◽  
Kanta Ono
Keyword(s):  
Magnetization Reversal ◽  
Permanent Magnets ◽  
Micromagnetic Simulation ◽  
Reversal Process ◽  
Magnetization Reversal Process

scholarly journals Evidence of Skyrmion-Tube Mediated Magnetization Reversal in Modulated Nanowires

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5671
Author(s):  
E. Berganza ◽  
J. Marqués-Marchán ◽  
C. Bran ◽  
M. Vazquez ◽  
A. Asenjo ◽  
...  
Keyword(s):  
Magnetization Reversal ◽  
Building Blocks ◽  
Intermediate Stage ◽  
Stray Field ◽  
Magnetic Nanowires ◽  
Spintronic Devices ◽  
Force Microscopy ◽  
Reversal Process ◽  
Small Fields ◽  
Magnetization Reversal Process

Magnetic nanowires, conceived as individual building blocks for spintronic devices, constitute a well-suited model to design and study magnetization reversal processes, or to tackle fundamental questions, such as the presence of topologically protected magnetization textures under particular conditions. Recently, a skyrmion-tube mediated magnetization reversal process was theoretically reported in diameter modulated cylindrical nanowires. In these nanowires, a vortex nucleates at the end of the segments with larger diameter and propagates, resulting in a first switching of the nanowire core magnetization at small fields. In this work, we show experimental evidence of the so-called Bloch skyrmion-tubes, using advanced Magnetic Force Microscopy modes to image the magnetization reversal process of FeCoCu diameter modulated nanowires. By monitoring the magnetic state of the nanowire during applied field sweeping, a detected drop of magnetic signal at a given critical field unveils the presence of a skyrmion-tube, due to mutually compensating stray field components. That evidences the presence of a skyrmion-tube as an intermediate stage during the magnetization reversal, whose presence is related to the geometrical dimensions of the cylindrical segments.

scholarly journals Subsystem domination influence on magnetization reversal in designed magnetic patterns in ferrimagnetic Tb/Co multilayers

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Łukasz Frąckowiak ◽  
Feliks Stobiecki ◽  
Gabriel David Chaves-O’Flynn ◽  
Maciej Urbaniak ◽  
Marek Schmidt ◽  
...  
Keyword(s):  
Domain Wall ◽  
Magnetization Reversal ◽  
Domain Walls ◽  
Compensation Point ◽  
Relative Sign ◽  
Reversal Process ◽  
Effective Magnetization ◽  
Domain Wall Propagation ◽  
Characteristic Features ◽  
Magnetization Reversal Process

AbstractRecent results showed that the ferrimagnetic compensation point and other characteristic features of Tb/Co ferrimagnetic multilayers can be tailored by He+ ion bombardment. With appropriate choices of the He+ ion dose, we prepared two types of lattices composed of squares with either Tb or Co domination. The magnetization reversal of the first lattice is similar to that seen in ferromagnetic heterostructures consisting of areas with different switching fields. However, in the second lattice, the creation of domains without accompanying domain walls is possible. These domain patterns are particularly stable because they simultaneously lower the demagnetizing energy and the energy associated with the presence of domain walls (exchange and anisotropy). For both lattices, studies of magnetization reversal show that this process takes place by the propagation of the domain walls. If they are not present at the onset, the reversal starts from the nucleation of reversed domains and it is followed by domain wall propagation. The magnetization reversal process does not depend significantly on the relative sign of the effective magnetization in areas separated by domain walls.

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