TITLE

Magnetization switching behavior with microwave assistance

AUTHOR(S)
Okamoto, S.; Kikuchi, N.; Kitakami, O.
PUB. DATE
September 2008
SOURCE
Applied Physics Letters;9/8/2008, Vol. 93 Issue 10, p102506
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Microwave assisted switching of magnetization has become one of the key techniques for future advanced recording. We have studied the magnetization switching behaviors excited by circularly and linearly polarized microwaves based on the Landau–Lifshitz–Gilbert equation. The precessional motion of magnetization is excited by the microwave, resulting in significant reduction of the irreversible reversal field. The reversal takes place through very complicated precessional motion, which proceeds via nearly steady precession at an early stage, subsequent unstable motion, and finally abrupt irreversible switching. We discuss the detailed effect of microwave polarization on magnetization reversals.
ACCESSION #
34449606

 

Related Articles

  • Proca Effects of Axion-Like Particle-Photon Interactions on Light Polarization in External Magnetic Fields. Cheng-De Li; Yan-Fu Cheng // International Journal of Theoretical Physics;Jul2008, Vol. 47 Issue 7, p1911 

    Photon can mix with the axion-like particles (ALPs) on light polarization when the laser beam travels through a magnetic field. Since there is no conclusive evidence of an exact zero rest mass for the photon in various experiments and observations, we study the Proca effects in various...

  • Induction Kinetics in 2D Electron Systems at the Hall Plateaus. Shikin, V. B. // JETP Letters;5/10/2002, Vol. 75 Issue 9, p465 

    Specific features of the induction excitation of 2D electron systems at the Hall plateaus are discussed. The corresponding kinetics is shown to have several frequency regimes. In the region ?>?[sub D], where ?[sub D] is the frequency characteristic of the kinetics at the Hall plateaus, an...

  • Quantum beats in the S[sub 1] dynamics of glyoxal. Chang, Chushuan; Chen, I-Chia // Journal of Chemical Physics;2/8/2002, Vol. 116 Issue 6, p2447 

    Fluorescence of transition A˜ [sup 1]A[sub u]-X˜ [sup 1]A[sub g] of trans-glyoxal in a supersonic jet is recorded with laser excitation in the wavelength region 393–417 nm. Full rotational analysis is performed for nine bands in a region 395–410 nm. Fluorescence decays with...

  • Spectrum control of THz radiation from InAs in a magnetic field by duration and frequency chirp... Izumida, Shinji; Ono, Shingo // Applied Physics Letters;7/26/1999, Vol. 75 Issue 4, p451 

    Reports that the radiation spectrum in a magnetic field irradiated with femtosecond pulses can be controlled by varying the excitation pulse width and chirp direction of the excitation phase. Details of the experimental setup.

  • Polarization Effects in the Radiation of Magnetized Envelopes and Extended Accretion Structures. Gnedin, Yu. N.; Silant'ev, N. A.; Piotrovich, M. Yu.; Pogodin, M. A. // Astronomy Reports;Mar2005, Vol. 49 Issue 3, p179 

    We have calculated the degree and position angle of the polarization of radiation scattered in a magnetized, optically thin or optically thick envelope around a central source, taking into account Faraday rotation of the plane of polarization during the propagation of the scattered radiation and...

  • Calculation and measurement of bianisotropy in a split ring resonator metamaterial. Smith, David R.; Gollub, Jonah; Mock, Jack J.; Padilla, Willie J.; Schurig, David // Journal of Applied Physics;7/15/2006, Vol. 100 Issue 2, p024507 

    A medium that exhibits artificial magnetism can be formed by assembling an array of split ring resonators (SRRs)—planar conducting elements that exhibit a resonant response to electromagnetic radiation. The SRR exhibits a large magnetic dipole moment when excited by a magnetic field...

  • Electrical measurements of the polarization in a moving magnetic vortex. Jun-ichiro Ohe; Barnes, Stewart E.; Hyun-Woo Lee; Maekawa, Sadamichi // Applied Physics Letters;9/21/2009, Vol. 95 Issue 12, p123110 

    We propose that the polarization of the moving magnetic vortex core can be detected by the electro- and spin-motive forces acting on the spin-polarized conduction electrons. With parameters appropriate to Permalloy, we have simulated the dynamics of a magnetic vortex core resulting from an...

  • Realization of biferroic properties in La0.6Sr0.4MnO3/0.7Pb(Mg1/3Nb2/3)O3–0.3(PbTiO3) epitaxial superlattices. Roy Chaudhuri, Ayan; Ranjith, R.; Krupanidhi, S. B.; Mangalam, R. V. K.; Sundaresan, A.; Majumdar, S.; Ray, S. K. // Journal of Applied Physics;6/1/2007, Vol. 101 Issue 11, p114104 

    A set of symmetric and asymmetric superlattices with ferromagnetic La0.6Sr0.4MnO3 (LSMO) and ferroelectric 0.7Pb(Mg1/3Nb2/3)O3–0.3(PbTiO3) as the constituting layers was fabricated on LaNiO3 coated (100) oriented LaAlO3 substrates using pulsed laser ablation. The crystallinity, and...

  • Inclinations of small quiet-Sun magnetic features based on a new geometric approach. Jafarzadeh, S.; Solanki, S. K.; Lagg, A.; Bellot Rubio, L. R.; van Noort, M.; Feller, A.; Danilovic, S. // Astronomy & Astrophysics / Astronomie et Astrophysique;Sep2014, Vol. 569, p1 

    Context. High levels of horizontal magnetic flux have been reported in the quiet-Sun internetwork, often based on Stokes profile inversions. Aims. Here we introduce a new method for deducing the inclination of magnetic elements and use it to test magnetic field inclinations from inversions....

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