Magnetoelastic anisotropy of amorphous microwires

Chiriac, H.; Óvári, T.-A.; Zhukov, А.

doi:10.1016/s0304-8853(02)00875-2

Cited by 137 publications

(87 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…1 and 2 we can conclude that the internal stresses in glass-coated microwires have mostly tensile character (as also shown in previous papers [5,6]), and that the strength of internal stresses increases with decreasing ρ-ratio. It is worth mentioning, that the observed stress dependence of H s is similar to one, previously observed for microwires with similar compositions [20].…”

Section: Resultssupporting

confidence: 83%

See 1 more Smart Citation

Fast Magnetization Switching in Amorphous Microwires

et al. 2014

View full text Add to dashboard Cite

We studied the magnetization switching in magnetically bistable amorphous ferromagnetic microwires. We observed quite fast domain wall propagation along the microwires and a correlation between the magnetoelastic anisotropy, distribution of the local nucleation eld along the length of microwire and the domain wall dynamics. We observed that both DW velocity and the range of elds, limiting single DW dynamics, can be manipulated by internal or applied stresses and by annealing. We also observed that under certain conditions a controllable domain wall (DW) collision can be realized in dierent parts of the wire, and that it is possible to manipulate the DW dynamics in a eld-driven regime.

show abstract

Section: Resultssupporting

confidence: 83%

“…Considerable dierence of the thermal expansion coecients of the glass and the metal, results in appearance of considerable internal stresses [5,6]. Both the applied and the internal stresses considerably aect soft magnetic properties of amorphous materials [7].…”

Section: Introductionmentioning

confidence: 99%

Fast Magnetization Switching in Amorphous Microwires

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Similarly to recently observed changes induced by annealing we can assume that the stress relaxation induced by annealing can change the sign of the magnetostriction constant. Indeed the reported internal stresses values inside the metallic nucleus are between 200 MPa and 5 GPa [10][11][12]. Experimentally measured values of the B-coefficient from Eq.…”

Section: Resultsmentioning

confidence: 98%

“…Consequently both thermal stresses induced by the solidification of the metallic nucleus from the surface layer as well as the internal stresses associated to the difference in the thermal expansion coefficients between the glass coating and the ferromagnetic nucleus affect the magnetoelastic anisotropy [10][11][12]. The strength of the internal stresses induced by the difference of thermal expansion coefficients depends on the ρ-ratio between the metallic nucleus diameter, d, and total microwire diameter, [10][11][12] increasing with decreasing the ρ-ratio, i.e. with increasing of the relative volume of the glass coating.…”

Section: Introductionmentioning

confidence: 99%

Tailoring of Magnetic Properties and Magnetoimpedance Effect in Thin Amorphous Wires

Zhukov¹,

Talaat

Ipatov³

et al. 2016

Acta Phys. Pol. A

View full text Add to dashboard Cite

We have studied the effect of annealing conditions on magnetic properties of amorphous CoFeNi-based glasscoated microwires. We show that annealing can be very effective for manipulation the magnetic properties of amorphous ferromagnetic glass-coated microwires. Low coercivity and high giant magnetoimpedance (GMI) effect have been observed in as-prepared Co-rich microwires. After annealing of Co-rich microwires we can observe transformation of inclined hysteresis loops into rectangular and coexistence of fast magnetization switching and GMI effect in the same sample. We demonstrate that the switching field value of microwires can be tailored by annealing in the range from 4 to 200 A/m.

show abstract

“…The strength of internal stresses is determined by ratio ρ = d/D [4]. Controllable change of the ρ-ratio allowed us to tailor the residual stresses.…”

Section: Methodsmentioning

confidence: 99%

Magnetic Properties and Giant Magnetoimpedance in Amorphous and Nanocrystalline Microwires

et al. 2014

View full text Add to dashboard Cite

We studied magnetic properties and GMI eect of Finemet-type FeCuNbSiB microwires. We observed that GMI eect and magnetic softness of microwires produced by the Taylor-Ulitovski technique, can be tailored by either controlling magnetoelastic anisotropy of as-prepared FeCuNbSiB microwires or controlling their structure by heat treatment or changing the fabrication conditions. GMI eect has been observed in as-prepared Fe-rich microwires with nanocrystalline structure.

show abstract

Magnetoelastic anisotropy of amorphous microwires

Cited by 137 publications

References 5 publications

Fast Magnetization Switching in Amorphous Microwires

Fast Magnetization Switching in Amorphous Microwires

Tailoring of Magnetic Properties and Magnetoimpedance Effect in Thin Amorphous Wires

Magnetic Properties and Giant Magnetoimpedance in Amorphous and Nanocrystalline Microwires

Contact Info

Product

Resources

About