Locally induced domain wall damping in a thin magnetic wire

Infante, G.; Varga, R.; Badini-Confalonieri, G. A.; Vázquez, M.

doi:10.1063/1.3174919

Cited by 26 publications

(16 citation statements)

References 18 publications

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“…[5][6][7][10][11][12][13] As-prepared Co 69 Fe 4 B 12 Si 14 C 1 sample presents linear hysteresis loop. This character of hysteresis loop is typical for microwires with low and negative magnetostriction coefficient.…”

Section: Experimental Techniquementioning

confidence: 99%

“…If the DW propagates along the sample it induces the electromotive force (emf ) in the pick-up coils as described elsewhere. 3,[6][7][8]12,13 Each emf sharp peak is picked up at an oscilloscope upon passing the propagating wall. Then, DW velocity is estimated as:…”

Section: Experimental Techniquementioning

confidence: 99%

“…The essential difference with the set-up for studies of the magnetic field driven DW propagation [6][7][8]12,13 in magnetic microwires is that we did not employ the magnetizing solenoid. Instead we used the AC current flowing through the microwire with amplitude of 10.5 mA.…”

Section: Experimental Techniquementioning

confidence: 99%

“…5,12,13 The magnetization reversal of microwires presenting magnetic bistability runs through the fast domain wall (DW) propagation along the wire. 12,13 The origin of spontaneous magnetic bistability in Fe-rich microwires with positive magnetostriction coefficient is related to a large and single Barkhausen jump within the single axially magnetized inner domain surrounded by the radial domain structure. 14 Such peculiar domain structure is usually attributed to the internal stresses distribution arising during the amorphous microwires preparation.…”

Section: Introductionmentioning

confidence: 99%

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Current induced domain wall propagation in Co-rich amorphous microwires

et al. 2017

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We studied the influence of the AC current flowing through the magnetically bistable Co-rich microwire on the magnetization dynamics. We used previously developed Sixtus-Tonks modified set-up for evaluation of the domain wall (DW) velocity within the microwire, but instead of the magnetizing solenoid we used the current flowing through the microwire. We observed that the AC current flowing though the sample produces the remagnetization of the sample by fast domain wall propagation along the microwire. Estimated DW velocity is about 4.5 km/s, being similar and even higher to that reported for the magnetic field driven domain wall propagation in Fe and Co-rich microwires. Observed current induced DW propagation through the microwire we explained considering the magnetostatic interaction between the outer circumferentially magnetized shell and the inner axially magnetized core.

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Section: Experimental Techniquementioning

confidence: 99%

Section: Experimental Techniquementioning

confidence: 99%

Section: Experimental Techniquementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Current induced domain wall propagation in Co-rich amorphous microwires

et al. 2017

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“…The domain wall damping can be increased or decreased by more than one order by simply changing the frequency of the measurements [4].…”

Section: Introductionmentioning

confidence: 99%

Negative Mobility of Single Domain Wall in Magnetic Microwires

2010

Self Cite

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Here, we present the domain wall dynamics in thin magnetic wires that exhibit even negative mobility regime. Such a regime is well below the Walker limit and is a result of structural relaxation. It disappears at high frequencies and it can be enhanced by application of mechanical stress. Moreover, the domain wall velocity was found to be almost field-independent at certain measuring conditions. Anyway, the domain wall velocity remains quite high (> 450 m/s) in this regime.

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Surface magnetization reversal and magnetic domain structure in amorphous microwires

González

Chizhik

Zhukov

et al. 2011

Physica Status Solidi (a)

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This paper presents a review on magneto‐optical investigations of the glass‐coated amorphous microwires including magneto‐optical magnetometry and microscopy. We also discuss a Kerr‐effect method of domain‐wall‐motion detection in glass‐coated wires within a classical Sixtus–Tonks experimental scheme. The developed techniques make it possible to observe the surface magnetization reversal and to establish the main mechanisms of domain‐structure formation and transformation.

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Locally induced domain wall damping in a thin magnetic wire

Cited by 26 publications

References 18 publications

Current induced domain wall propagation in Co-rich amorphous microwires

Current induced domain wall propagation in Co-rich amorphous microwires

Negative Mobility of Single Domain Wall in Magnetic Microwires

Surface magnetization reversal and magnetic domain structure in amorphous microwires

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