TITLE

Suppression of complex domain wall behavior in Ni80Fe20 nanowires by oscillating magnetic fields

AUTHOR(S)
Weerts, K.; Van Roy, W.; Borghs, G.; Lagae, L.
PUB. DATE
February 2010
SOURCE
Applied Physics Letters;2/8/2010, Vol. 96 Issue 6, p062502
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have studied the field-induced propagation of domain walls (DW) in 750 nm wide magnetic nanowires by time-resolved magneto-optical Kerr microscopy. Two different DW propagation modes are observed, separated by the so-called Walker breakdown (WB), with velocities ranging from 250 till 500 m/s. At WB, a velocity decrease occurs because of a complex evolution of the DW shape. Through simulations and experiments, we demonstrate a method to suppress this complex DW behavior at WB by superimposing an oscillating magnetic field Hosc, parallel to the switching field Heff, at frequencies ranging from 200 to 600 MHz.
ACCESSION #
48067952

 

Related Articles

  • Magnetotransmission and magnetoreflection in multilayer FeCr nanostructures. Ustinov, V. V.; Sukhorukov, Yu. P.; Milyaev, M. A.; Granovskiĭ, A. B.; Yurasov, A. N.; Gan'shina, E. A.; Telegin, A. V. // Journal of Experimental & Theoretical Physics;Feb2009, Vol. 108 Issue 2, p260 

    The magnetotransmission and magnetoreflection spectra of a seven-layer Cr(28 Ã…)/Fe(36 Ã…)/Cr(13 Ã…)/Fe(18 Ã…)/Cr(13 Ã…)/Fe(36 Ã…)/Cr(28 Ã…) film, their temperature and field dependences measured at various directions of a magnetic field with respect to the film plane, and...

  • MOTION OF BIO-FUNCTIONALIZED MAGNETIC NANOPARTICLE CLUSTERS UNDER A ROTATING MAGNETIC FIELD. Ji- Ching Lai; Chia-Chun Tang; Chin-Yih Hong // Magnetohydrodynamics (0024-998X);Jul-Dec2013, Vol. 49 Issue 3/4, p434 

    Bio-functionalized magnetic nanoparticles in an aqueous solution agglomerate and form clusters with various sizes and shapes due to the interaction between biomolecules. In this study, the motion of magnetic nanoparticle clusters in an aqueous solution under rotating magnetic fields was...

  • High frequency impedance spectroscopy on ZnO nanorod arrays. Scrymgeour, David A.; Highstrete, Clark; Lee, Yun-Ju; Hsu, Julia W.-P.; Lee, Mark // Journal of Applied Physics;Mar2010, Vol. 107 Issue 6, p064312 

    The radio-frequency (rf)-to-microwave impedance spectra of solution grown ZnO nanorods have been measured from 0.1 to 50 GHz using vector network analysis. To increase interaction with rf/microwave fields, the nanorods were assembled by dielectrophoresis into arrays on coplanar waveguides. The...

  • Catalytic reactions on platinum nanofacets: bridging the size and complexity gap. Suchorski, Yuri; Drachsel, Wolfgang // Topics in Catalysis;Dec2007, Vol. 46 Issue 1/2, p201 

    In this short review we present few selected sections of our own work on the catalytic reactions as studied on a nanoscale using the field emission and field ion microscopies (FEM/FIM) and the corresponding probe-hole techniques: magnetic field ion mass separation combined with the field ion...

  • Influence of coupling to spectra of weakly damped eigenmodes in the ion cyclotron range of frequencies on parasitic absorption in rectified radio frequency sheaths. Hellsten, T.; Laxåback, M. // Physics of Plasmas;Mar2005, Vol. 12 Issue 3, p032505 

    Coupling to broad spectra of weakly damped magnetosonic eigenmodes in the ion cyclotron range of frequencies is analyzed. Small variations in density or magnetic field can significantly affect the phase of the reflected wave and hence the coupling in large tokamaks. Under such conditions a...

  • Frequency tunability of the terahertz silicon laser by a magnetic field. Pavlov, S. G.; Hübers, H.-W.; Kimmitt, M. F.; Riemann, H.; Shastin, V. N. // Applied Physics Letters;7/10/2006, Vol. 89 Issue 2, p021108 

    By applying a magnetic field to the terahertz intracenter silicon laser the degeneracy of the donor states is lifted. In the case of a bismuth doped silicon laser operating at 6 THz it is demonstrated that this effect can be used to tune the emission frequency. The frequency change depends on...

  • The persistent charge and spin currents in topological insulator Bi2Se3 nanowires. Lou, Wen-Kai; Cheng, Fang; Li, Jun // Journal of Applied Physics;Nov2011, Vol. 110 Issue 9, p093714 

    We investigate theoretically the surface states of three-dimensional topological insulator cylinder nanowires analytically and numerically. In contrast to the conventional semiconductor cylinder nanowires, these surface states exhibit unique massless Dirac dispersion and interesting transport...

  • Oscillatory Characteristics of Nociceptive Responses in the SII Cortex. Fu-Jung Hsiao; Wei-Ta Chen; Kwong-Kum Liao; Zin-An Wu; Low-Tone Ho; Yung-Yang Lin // Canadian Journal of Neurological Sciences;Nov2008, Vol. 35 Issue 5, p630 

    Objective: This study is aimed to explore the frequency characteristics of pain-evoked neuromagnetic responses in the secondary somatosensory (SII) cortices. Methods: Thulium-laser nociceptive stimuli to the left hand dorsum of 10 right-handed healthy adults. The pain stimuli were rated as mild,...

  • Direct observation of infrared band intensity transfer between coadsorbates having widely.... Weaver, Michael J.; Tang, Catherine // Journal of Chemical Physics;9/15/1998, Vol. 109 Issue 11, p4135 

    Examines the occurrence of infrared band intensity transfer between juxtaposed coadsorbates. Separation of the coadsorbates by oscillator frequencies in intermixed nitrogen oxide (NO) and carbon dioxide (CO) adlayers; Removal of CO/NO by electromechanical oxidation and reduction; Use of the...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics