Negative Mobility of Single Domain Wall in Magnetic Microwires

• Authors: R. Varga , K. Richter , A. Zhukov
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

75.60.Ej; 75.60.Jk

Discipline

• 75.60.Jk: Magnetization reversal mechanisms
• 75.60.Ej: Magnetization curves, hysteresis, Barkhausen and related effects(for hysteresis in ferroelectricity, see 77.80.Dj)

• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 5
• Pages: 747-748

Dates

published

2010-11

Contributors

author

R. Varga

• Institute of Physics, Faculty of Sciences, P.J. Safarik University, Park Angelinum 9, 041 54 Kosice, Slovakia

author

K. Richter

• Institute of Physics, Faculty of Sciences, P.J. Safarik University, Park Angelinum 9, 041 54 Kosice, Slovakia

author

A. Zhukov

• Dept. Fisica de Materiales, Fac. Quimica, UPV/EHU, San Sebastian, Spain

References

• 1. R. Varga, K.L. Garcia, M. Vázquez, P. Vojtanik, Phys. Rev. Lett. 94, 017201 (2005)
• 2. J.D. Santos, Á. Ruiz, R.F. Cobos, I. Ribot, V. Vega, P. Álvarez, M.L. Sánchez, J.L. Sánchez, Ll., V.M. de la Prida, B. Hernando, Phys. Status Solidi A 206, 618 (2009)
• 3. K. Richter, R. Varga, G. Infante, G.A. Badini-Confalonieri, M. Vazquez, IEEE Trans. Magn. 46, 210 (2010)
• 4. G. Infante, R. Varga, G.A. Badini-Confalonieri, M. Vázquez, Appl. Phys. Lett. 95, 012503 (2009)
• 5. N.L. Schryer, L.R. Walker, J. Appl. Phys. 45, 5406 (1974)

Identifiers

DOI

10.12693/APhysPolA.118.747