Results 1 to 10 of about 4,167 (169)
Self similar Barkhausen noise in magnetic domain wall motion [PDF]
A model for domain wall motion in ferromagnets is analyzed. Long-range magnetic dipolar interactions are shown to give rise to self-similar dynamics when the external magnetic field is increased adiabatically.
B. Alessandro +10 more
core +4 more sources
Magnetic Barkhausen noise: A simulation tool [PDF]
Non-destructive magnetic controls are increasing in the industrial field. In this domain, the expectation for simulation tools able to anticipate the magnetic signature, improve the understanding and avoid fastidious and uncertain experimental pre-characterizations is high.
Fagan, Patrick +3 more
openaire +4 more sources
Magnetic Barkhausen Noise Measurements on Rocks
Context: The magnetic properties of rocks may reflect the modal abundance, composition, and microstructure of the magnetic grains contained within them, usually in a very small proportion. Magnetic Barkhausen Noise (MBN) is a non-destructive technique applied to magnetic materials, and it is very sensitive to microstructure and residual stresses.
Miriam Rocío Neyra Astudillo +3 more
openaire +4 more sources
Barkhausen noise emission in soft magnetic bilayer ribbons [PDF]
Barkhausen noise emission in soft magnetic bilayer ribbons has been investigated. The monolithic amorphous Fe73.5Nb3Si13.5B9Cu1/Fe74.5Nb3Si13.5B9 bilayer system was produced by double-nozzle melt-spinning. It was subsequently used to measure the Barkhausen noise emission in the amorphous state as well as in the annealed state as a function of ...
M. Neslušan +4 more
openaire +2 more sources
Barkhausen noise from zigzag domain walls [PDF]
We investigate the Barkhausen noise in ferromagnetic thin films with zigzag domain walls. We use a cellular automaton model that describes the motion of a zigzag domain wall in an impure ferromagnetic quasi-two dimensional sample with in-plane uniaxial ...
B Cerruti +7 more
core +1 more source
Dynamics of a ferromagnetic domain wall: avalanches, depinning transition and the Barkhausen effect [PDF]
We study the dynamics of a ferromagnetic domain wall driven by an external magnetic field through a disordered medium. The avalanche-like motion of the domain walls between pinned configurations produces a noise known as the Barkhausen effect. We discuss
A. A. Middleton +78 more
core +2 more sources
Dynamics of a ferromagnetic domain wall and the Barkhausen effect [PDF]
We derive an equation of motion for the the dynamics of a ferromagnetic domain wall driven by an external magnetic field through a disordered medium and we study the associated depinning transition.
A. Herpin +37 more
core +2 more sources
Modeling Barkhausen Noise in Magnetic Glasses with Dipole-Dipole Interactions
Long-ranged dipole-dipole interactions in magnetic glasses give rise to magnetic domains having labyrinthine patterns. Barkhausen Noise is then expected to result from the movement of domain boundaries which is supposed to be modeled by the motion of ...
Dubey, Awadhesh K. +5 more
core +1 more source
Magnetic Barkhausen Noise in quenched carburized steels
Steels with different carbon content, 0.11%C and 0.48%C were submitted to a heat treatment for carburization in the surface. The samples were analyzed after several types of heat treatment, including quenching for producing martensite. The Magnetic Barkhausen Noise (MBN) is directly related to the microstructure. Samples with lower carbon content, have
M F de Campos +6 more
openaire +1 more source
Barkhausen noise in soft amorphous magnetic materials under applied stress
We report experimental measurements of Barkhausen noise on Fe_{64}Co_{21}B_{15} amorphous alloy under tensile stress. We interpret the scaling behavior of the noise distributions in terms of the depinning transition of the domain walls.
Durin G. +3 more
core +1 more source

