Results 11 to 20 of about 13,083 (302)

Laser induced ultrafast magnetization reversal in TbCo film

open access: yesAIP Advances, 2017
All optical switching is an emerging recording technology by using femtosecond laser to realize ultrafast magnetization manipulation for super-high magnetic storage.
Weiming Cheng   +4 more
doaj   +2 more sources

Magnon-Assisted Magnetization Reversal of Ni81Fe19 Nanostripes on Y3Fe5O12 with Different Interfaces. [PDF]

open access: yesACS Nano
Magnetic bit writing by short-wave magnons without conversion to the electrical domain is expected to be a game-changer for in-memory computing architectures. Recently, the reversal of nanomagnets by propagating magnons was demonstrated.
Mucchietto A, Baumgaertl K, Grundler D.
europepmc   +2 more sources

Super-hierarchical and explanatory analysis of magnetization reversal process using topological data analysis

open access: yesScience and Technology of Advanced Materials: Methods, 2022
The microstructures of magnetic domains are crucial in determining the functions of spintronic devices. However, the magnetization reversal mechanism is still not fully understood because of the difficulty in quantifying the drastic and complex changes ...
Sotaro Kunii   +3 more
doaj   +1 more source

Experimental approaches for micromagnetic coercivity analysis of advanced permanent magnet materials

open access: yesScience and Technology of Advanced Materials, 2021
Although coercivity is one of the fundamental properties of permanent magnets, it has not been well understood. In this paper, micromagnetics and thermal activation magnetization reversal theories are briefly reviewed, and then our recent macroscopic and
Satoshi Okamoto
doaj   +1 more source

Wave reversal mode in permalloy wire-tube nanostructures

open access: yesAIP Advances, 2022
We have investigated hysteresis curves and magnetization reversal mechanisms in permalloy wire-tube nanostructures when an external magnetic field is applied perpendicular to the axis of the nanostructure, in the x direction.
Diana M. Arciniegas Jaimes   +4 more
doaj   +1 more source

Magnetic reversal on vicinal surfaces [PDF]

open access: yesPhysical Review B, 1998
12 pages, 8 ...
Hyman, R. A.   +2 more
openaire   +2 more sources

Method of analysis of the reversal magnetization processes using magnetic domain structure images [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2018
A unique software and hardware system for obtaining and automatic analysis of the magnetic domain structure images in an external magnetic field for further study of the magnetization reversal process was developed.
A.Yu. Karpenkov   +3 more
doaj   +1 more source

Evidence for incoherent reversal in perpendicular MRAM cells down to 20 nm diameter

open access: yesAIP Advances, 2023
We investigate experimentally the time evolution of the magnetization reversal in spin-transfer torque driven perpendicular magnetoresistive memory cells in the diameter range of 20 to 65nm.
H. J. Richter   +4 more
doaj   +1 more source

Barkhausen noise from formation of 360^{∘} domain walls in disordered permalloy thin films

open access: yesPhysical Review Research, 2023
Barkhausen noise in disordered ferromagnets is typically understood to originate primarily from jerky field-driven motion of domain walls. We study the magnetization reversal process in disordered permalloy thin films using micromagnetic simulations and ...
Sami Kaappa, Lasse Laurson
doaj   +1 more source

Transition state in magnetization reversal [PDF]

open access: yesJournal of Applied Physics, 2003
We consider a magnet with uniaxial anisotropy in an external magnetic field along the anisotropy direction, but with a field magnitude smaller than the coercive field. There are three representative magnetization configurations corresponding to three extrema of the free energy.
Brown, G.   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy