Separation of reversible domain-wall motion and magnetization rotation components in susceptibility spectra of amorphous magnetic materials

Yoon, S. S.; Kim, C. G.
May 2001
Applied Physics Letters;5/21/2001, Vol. 78 Issue 21, p3280
Academic Journal
The reversible susceptibility spectra are measured for rectangular Co[sub 66]Fe[sub 4]NiB[sub 14]Si[sub 15] samples with various easy-axis angles, α, relative to the sample axis. A phenomenological method is proposed for the reversible spectra to separate the relaxation processes of domain-wall motion and magnetization rotation. The separation provides a method for measuring the static susceptibilities and the relaxation frequencies for the two reversible magnetization processes. The α and the longitudinal stress dependence show that the separated spectra with relaxation frequencies near 360 kHz and 1.6 MHz correspond to relaxations of domain-wall motion and to magnetization rotation, respectively. © 2001 American Institute of Physics.


Related Articles

  • Calculation of the Relaxation Time from the Frequency Spectra of Ferrites. Bazhukov, K. Yu.; Gol’chevskiı, Yu. V.; Kotov, L. N. // Technical Physics;Aug2000, Vol. 45 Issue 8, p1051 

    A method for determining the relaxation times of the magnetic moments of ferrites from inverse Fourier transforms is suggested. The effect of the alternating external magnetic field strength on the relaxation times was studied. It was found that the dispersion and absorption ranges in the...

  • Early stages of mechanical crystallization of amorphous FeZrBCu soft magnetic material. Friedrich, J.; Herr, U. // Journal of Applied Physics;3/1/2000, Vol. 87 Issue 5, p2464 

    Provides information on a study which obtained nanocrystalline iron-based soft magnetic materials with high saturation magnetization by crystallization of amorphous precursors. Magnetic properties of iron-rich nanocrystalline alloys; Results and discussion.

  • On the specific features of the paraprocess in a system of nanoparticles. Nikolaev, V. I.; Rod, I. A. // Physics of the Solid State;Sep2006, Vol. 48 Issue 9, p1791 

    The specific features revealed in the paraprocess occurring in magnetically ordered particles of different dispersities are discussed. It is shown that an analysis of the paraprocess in a system of nanoparticles will be substantially more comprehensive if one introduces into consideration, in...

  • Spin–Spin Interactions and Nuclear Magnetic Relaxation in Magnetic Solids. Sergeev, N.; Polulyakh, S. // Hyperfine Interactions;2005, Vol. 163 Issue 1-4, p161 

    The influence of the orientational fluctuations of the electronic magnetization, which modulate nuclear spin–spin interactions (Suhl–Nakamura and dipole–dipole), on the spin-lattice relaxation of magnetic nuclei with spin I = 1/2 in the magnetically ordered solids has been...

  • Relaxation of the magnetization in magnetic molecules. Carretta, S.; Bianchi, A.; Liviotti, E.; Santini, P.; Amoretti, G. // Journal of Applied Physics;4/15/2006, Vol. 99 Issue 8, p08D101 

    Several mechanisms characterize the relaxation dynamics in magnetic molecules. We investigate two of them, spin-lattice coupling and incoherent quantum tunneling. The effect of the phonon heat bath is studied by analyzing the exponential time decay of the autocorrelation of the magnetization. We...

  • Domain wall relaxation in amorphous ribbons. Amano, E.; Valenzuela, R.; Irvine, J. T. S.; West, A. R. // Journal of Applied Physics;5/1/1990, Vol. 67 Issue 9, p5589 

    Studies the measurements of monodomain, polycystalline hexagonal ferrites and amorphous ribbons. Information on the magnetization mechanism at low measuring frequencies in polycrystalline ferrites; Details on the experimental techniques; Experimental results.

  • Dielectric Relaxation in AL- Substituted Ni--Cd Spinel Ferrites. El Kony, D. // Egyptian Journal of Solids;2004, Vol. 27 Issue 2, p285 

    The real part of dielectric constant (ε′) and dielectric loss tangent (tan δ) were studied for Al.- substituted Ni -- Cd spinel ferrites having the chemical formula Ni0.7 Cd0.3 Fe2-x Alx O4 where [x= 0.4, 0.6, 0.8, and 1] This is carried our in the range of temperature from room...

  • Special features of the ferromagnetic resonance in cobalt-containing granulated nanostructures. Vyzulin, S.; Kalinin, Yu.; Kopytov, G.; Lebedeva, E.; Sitnikov, A.; Syr’ev, N. // Russian Physics Journal;Mar2006, Vol. 49 Issue 3, p285 

    Results of studying the concentration and orientation spectra of ferromagnetic resonance (FMR) in nanogranulated composites consisting of amorphous cobalt-containing granules in the SiO 2 or Al2O 3 amorphous dielectric or LiNbO 3 ferroelectric matrix are presented. It is demonstrated that the...

  • Magnetic nanobraids of iron-doped amorphous silica. Xu, C. X.; Sun, X. W.; Yu, M. B.; Yong Zhong Xiong; Dong, Z. L.; Chen, J. S. // Applied Physics Letters;11/29/2004, Vol. 85 Issue 22, p5364 

    Using silicon, iron oxide, and graphite powders as source materials, braid-like nanostructures of iron-doped amorphous silica were fabricated by vapor-phase transport. Each braid was composed of a bunch of entangled nanowires with uniform size. The formation of the nanobraids was mainly due to...


Read the Article


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

Try another library?
Sign out of this library

Other Topics