TITLE

Magnetic domain compensation effect on the magnetodynamic response of ferromagnetic elements

AUTHOR(S)
Patschureck, C.; Kaltofen, R.; M&a#x00F6;nch, I.; Schäfer, R.; Schultz, L.; McCord, J.
PUB. DATE
August 2010
SOURCE
Applied Physics Letters;8/2/2010, Vol. 97 Issue 5, p052507
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The capacity to tune the ferromagnetic resonance frequency in a soft ferromagnetic film relies on the ability to tailor the uniaxial anisotropy of the film material. We achieved a systematic change in anisotropy field with all other material properties remaining constant by preparing Ni18Fe19/Co60Fe20B20 multilayers. We show that in patterned films deviations from the regular Landau domain pattern occur, which compensate magnetic anisotropy effects and thereby lead to a precessional frequency independent of anisotropy. These results demonstrate that even small changes in the magnetic domain structure counteracts anisotropy adjustments in optimizing the magnetodynamic response in mesoscopic thin film elements.
ACCESSION #
52802608

 

Related Articles

  • Tunable transport in magnetically coupled MoGe/Permalloy hybrids. Belkin, A.; Novosad, V.; Iavarone, M.; Fedor, J.; Pearson, J. E.; Petrean-Troncalli, A.; Karapetrov, G. // Applied Physics Letters;8/18/2008, Vol. 93 Issue 7, p072510 

    We demonstrate controlled magnetotransport anisotropy of magnetically coupled superconductor-ferromagnet MoGe/Permalloy hybrids. The rotatable anisotropy Permalloy ferromagnet with stripe domain structure induces in-plane anisotropy in superconducting order parameter. We show that near the...

  • Mesoscopic thin-film magnetic rings (invited). Ross, C. A.; Castaño, F. J.; Morecroft, D.; Jung, W.; Smith, Henry I.; Moore, T. A.; Hayward, T. J.; Bland, J. A. C.; Bromwich, T. J.; Petford-Long, A. K. // Journal of Applied Physics;4/15/2006, Vol. 99 Issue 8, p08S501 

    The magnetic properties and magnetoresistance of thin-film circular and elliptical magnetic rings made from Co, NiFe, NiFe/FeMn, and Co/Cu/NiFe have been explored. Single-layer rings show stable onion and vortex states and metastable twisted states containing a 360° wall. For NiFe rings,...

  • Realization of a mesoscopic reprogrammable magnetic logic based on a nanoscale reconfigurable magnonic crystal. Ding, J.; Kostylev, M.; Adeyeye, A. O. // Applied Physics Letters;2/13/2012, Vol. 100 Issue 7, p073114 

    We demonstrate functionality of magnetic logic based on a reconfigurable magnonic crystal in the form of a meander-type ferromagnetic nanowire. A ferromagnetic resonance method employing a microscopic coplanar waveguide has been used to detect the logic state of the structure coded in its...

  • Controlled magnetic anisotropy of SrRuO3 thin films grown on nominally exact SrTiO3(001) substrates. Herranz, G.; Sánchez, F.; Dix, N.; Hrabovsky, D.; Infante, I. C.; Fontcuberta, J.; García-Cuenca, M. V.; Ferrater, C.; Varela, M. // Applied Physics Letters;10/9/2006, Vol. 89 Issue 15, p152501 

    Ferromagnetic SrRuO3 films with controlled in-plane magnetic anisotropy have been deposited on nominally exact (miscut <0.1°) SrTiO3(001) substrates. Films grown on as-received substrates display in-plane uniaxial magnetic anisotropy whereas films grown on treated TiO2-terminated surfaces are...

  • Strong anisotropy of magnetization and sign reversion of ordinary Hall coefficient in single crystal Ge1-xMnx magnetic semiconductor films. Deng, J. X.; Tian, Y. F.; He, S. M.; Bai, H. L.; Xu, T. S.; Yan, S. S.; Dai, Y. Y.; Chen, Y. X.; Liu, G. L.; Mei, L. M. // Applied Physics Letters;8/10/2009, Vol. 95 Issue 6, p062513 

    Epitaxial single-crystal Ge1-xMnx ferromagnetic-semiconductor films were fabricated on Ge(001) substrates by molecular beam epitaxy. All the samples are ferromagnetic and have strong magnetic anisotropy indicated by different magnetization in plane and out of plane. The electrical transport of...

  • Domain wall trapping at mesoscopic ferromagnetic junctions. Adeyeye, A. O.; Welland, M. E. // Journal of Applied Physics;10/1/2002, Vol. 92 Issue 7, p3896 

    We have investigated the effects of domain walls (DWs) on electron transport across mesoscopic ferromagnetic junctions. The structures consist of a single 30 nm Ni[sub 80]Fe[sub 20] thick 0.5×24 µm wire bisected by a mesoscopic junction with width w in the range 0.2-1 µm. Using...

  • Transition from a single-domain to a multidomain state in mesoscopic ferromagnetic Co structures. Seynaeve, E.; Rens, G.; Volodin, A. V.; Temst, K.; Van Haesendonck, C.; Bruynseraede, Y. // Journal of Applied Physics;1/1/2001, Vol. 89 Issue 1, p531 

    We have performed magnetic force microscopy measurements on isolated 35 nm thick rectangular Co structures. The structures have a length L ranging between 0.25 and 10 μm and a width W ranging between 0.25 and 5.5 μm, covering aspect ratios m=L/W between 1 and 40. This enables us to map the...

  • A new method for high-frequency characterization of patterned ferromagnetic thin films. Zhang, Hanqiao; Song, Chunrong; Wang, Pingshan // Journal of Applied Physics;Apr2009, Vol. 105 Issue 7, p07E716 

    A new high-frequency method is presented for patterned ferromagnetic thin film characterization. Parasitic effects, which often overwhelm the signal from patterned ferromagnetic structures, are significantly reduced through an on-chip interference process. As a result, measurement sensitivity is...

  • Magnetothermopower and magnon-assisted transport in ferromagnetic tunnel junctions. McCann, Edward; Fal’ko, Vladimir I. // Applied Physics Letters;11/4/2002, Vol. 81 Issue 19, p3609 

    We present a model of the thermopower in a mesoscopic tunnel junction between two ferromagnetic metals based upon magnon-assisted tunneling processes. In our model, the thermopower is generated in the course of thermal equilibration between two baths of magnons, mediated by electrons. We predict...

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