DC magnetization processes in bistable glass-coated ferromagnetic microwires

Ziman, J.; Onufer, J.; Kladivová, Mária

doi:10.1016/j.jmmm.2011.06.064

Cited by 18 publications

(7 citation statements)

References 10 publications

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“…In the first, solenoids So1 and So2 are connected in such a way that current through them, which is switched on for about one second, creates opposite fields. A stable single domain boundary between axial domains is created by these fields [7]. In the second step, solenoids So1 and So2 are connected in such a way that they create fields with the same direction, and the magnetic flux in pick-up coil is measured [6].…”

Section: Methodsmentioning

confidence: 99%

Study of Axial Dimension of Static Head-to-Head Domain Boundary in Amorphous Glass-Coated Microwire

et al. 2017

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A new experiment allowing the study of static domain boundary dimensions in bistable microwire is proposed. In this experiment a static domain boundary is created by an inhomogeneous axial magnetic field. The changes in axial magnetic flux due to the presence of this boundary were measured along the microwire using two pick-up coils. Experimental results were compared with a simple theoretical model. For Fe77.5Si7.5B15 microwire with total diameter of 30 µm and metal nucleus diameter of 15 µm, good agreement between theoretical and experimental data was obtained for an axial dimension of the static domain boundary about 200 times larger than the diameter of the wire metallic core.

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Section: Methodsmentioning

confidence: 99%

Study of Axial Dimension of Static Head-to-Head Domain Boundary in Amorphous Glass-Coated Microwire

et al. 2017

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“…The second pulse has positive sign with magnitude H and length τ c . The third pulse is long (τ > 1 ms), has positive sign and its magnitude is high enough to move a free wall along the wire, but not high enough to depin the wall from the wire end [5]. The fourth pulse is long (τ > 1 ms) and its magnitude is high enough to magnetize the wire in positive direction.…”

Section: Methodsmentioning

confidence: 99%

Stress-Induced Changes in Closure Domain Structure Dynamics in Bistable Ferromagnetic Microwire

2014

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A new experimental method for the study of closure domain structure dynamics in bistable ferromagnetic microwires is proposed. The simple experimental set-up enables detection of the presence of a free domain wall in the wire after application of a well-dened rectangular magnetic eld pulse. The changes in closure domain structure dynamics, caused by applied tensile stress, are demonstrated by measurements on Fe77.5B15Si7.5 glasscoated microwire. Minimum critical eld for the release of a domain wall from the closure domain structure increases with increasing stress, while on the other hand, the minimum time needed for this process rapidly decreases with increasing stress.

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“…This expression can be obtained directly from Eqs. (8,9) substituting iω (i is the imaginary unit, ω is real) for the square root expressions. Formulas are formally the same only harmonic functions sin and cos are replaced by hyperbolic function sinh and cosh.…”

Section: Modelmentioning

confidence: 99%

“…Velocity of this domain wall can be very high and so this phenomenon can be very interesting for technical applications. On the other hand the study of a single domain wall dynamics can give important information for understanding the process of magnetization reversal [4][5][6][7][8] and about dynamic characteristics of a single domain wall [9,10].…”

Section: Introductionmentioning

confidence: 99%