Measurement of magnetic fields using the magneto-optic Kerr effect

July 1993
Applied Physics Letters;7/19/1993, Vol. 63 Issue 3, p415
Academic Journal
Presents a technique for measuring small magnetic fields using a thin amorphous magnetic film and the magneto-optic Kerr effect. Development of optical-based sensing systems; Observation of the film magnetization rotation; Reflectance of polarized light from the film surface.


Related Articles

  • Magneto-optical Kerr effect susceptometer for the analysis of magnetic domain wall dynamics. Kataja, Mikko; van Dijken, Sebastiaan // Review of Scientific Instruments;Oct2011, Vol. 82 Issue 10, p103901 

    Domain wall dynamics in thin magnetic films with perpendicular and in-plane anisotropy is studied using a novel magneto-optical Kerr effect susceptometery method. The method allows for measurements of domain wall motion under ac field excitation and the analysis of dynamic modes as a function of...

  • A method to measure the two-dimensional image of magneto-optical Kerr effect. Xiao-Song Zhu, Sylvie; Hai-Bing Zhao; Peng Zhou; Guo-Qiang Xia; Hai-Yang You, Sylvie; Rong-Jun Zhang; Jing Li; Song-You Wang; Wei-Ming Ni; Liang-Yao Chen // Review of Scientific Instruments;Nov2003, Vol. 74 Issue 11, p4718 

    A two-dimensional (2D) image of magneto-optical Kerr effect measurement system has been designed and constructed. The magnetic field is provided by two cylindrical permanent magnets in the 0–8000 G range. To avoid beam deviation and other problems in the measurement, an electronically...

  • Depth profiles of magnetic anisotropy in annealed Co-based amorphous ribbon. Gan’shina, E. A.; Perov, N. S.; Kochneva, M. Yu.; Sheverdyaeva, P. M.; Kim, C. G.; Kim, C. O. // Journal of Applied Physics;5/15/2002 Part 1, 2 & 3, Vol. 91 Issue 10, p8438 

    For Co-Fe-Si-B amorphous ribbons the influence of weak-field annealing on transformation of magnetic field and spectral transverse Kerr effect (TKE) dependencies has been studied. The TKE spectra and magnetization curves were found to exhibit anisotropic behavior. The results indicate that the...

  • Soft x-ray longitudinal magneto-optical Kerr effect measured from Co/Cu multilayers at the Co L[sub 2,3] edges. Hecker, M.; Mertins, H.-C.; Abramsohn, D.; Gudat, W.; Schneider, C. M. // Journal of Applied Physics;5/15/2003, Vol. 93 Issue 10, p6516 

    We report on x-ray magneto-optical reflectivity investigations of Co/Cu multilayers with circularly polarized synchrotron light. The individual layer thicknesses of the samples were tuned to the second maximum of the giant magnetoresistance. An external magnetic field was applied parallel to the...

  • Unusual magnetization reversal in [Co/Pt]4 multilayers with perpendicular anisotropy. Cheng, X. M.; Nikitenko, V. I.; Shapiro, A. J.; Shull, R. D.; Chien, C. L. // Journal of Applied Physics;4/15/2006, Vol. 99 Issue 8, p08C905 

    Unusual magnetization reversal of [Co(4 Ã…)/Pt(10 Ã…)]4 multilayers with perpendicular magnetic anisotropy has been revealed macroscopically by magnetometry measurements and microscopically by magneto-optical Kerr effect microscopy and magnetic force microscopy (MFM) imaging. During the...

  • Time-resolved measurements of field-driven domain wall motion in a submicron strip with perpendicular magnetic anisotropy. Emori, Satoru; Bono, David C.; Beach, Geoffrey S. D. // Journal of Applied Physics;Apr2012, Vol. 111 Issue 7, p07D304 

    The motion of domain walls (DWs), driven by magnetic field and spanning almost eight orders of magnitude in velocity, has been studied in a submicron-wide strip of Co/Pt with perpendicular magnetic anisotropy. A scanning magneto-optic Kerr effect (MOKE) system is used to conduct time-resolved...

  • Magneto-optical measurement of anisotropy energy constants on amorphous rare-earth transition-metal alloys. Hajjar, Roger A.; Zhou, Feng Lei; Mansuripur, M. // Journal of Applied Physics;5/1/1990, Vol. 67 Issue 9, p5328 

    Presents a study which performed measurement of the magneto-optic polar Kerr effect on samples with perpendicular magnetization using in-plane magnetic fields. Calculation of the magnetic anisotropy constants; Expression of the anisotropy energy in the theoretical model; Comparison of the...

  • Magneto-optic Kerr effect in a slab waveguide. Sassaroli, E.; DiMarzio, C. A.; He, Y.; Oliver, S. A. // Journal of Applied Physics;12/15/2001, Vol. 90 Issue 12, p6054 

    A theoretical and numerical investigation of the magneto-optic Kerr effect in a slab optical waveguide bounded on one side by a thin magnetic film is considered. The output power has been determined as a function of the input polarization angle, output analyzer angle, thickness of the...

  • Dependence of spatial coherence of coherent suppression of magnetization precession upon aspect ratio in Ni81Fe19 microdots. Barman, A.; Kruglyak, V. V.; Hicken, R. J.; Scott, J.; Rahman, M. // Journal of Applied Physics;5/15/2005, Vol. 97 Issue 10, p10N104 

    Coherent suppression of magnetization dynamics in circular microdots of Ni81Fe19 has been observed by time-resolved scanning Kerr effect microscopy. The applied pulsed field rose sharply, stimulating precession, and then exhibited an oscillatory behavior. For certain values of the static...


Read the Article


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

Try another library?
Sign out of this library

Other Topics