Kerr rotation enhancement in metallic bilayer thin films for magneto-optical recording

Reim, W.; Weller, D.
December 1988
Applied Physics Letters;12/12/1988, Vol. 53 Issue 24, p2453
Academic Journal
The enhancement of the magneto-optical Kerr effect via metallic bilayer structures is demonstrated for magneto-optic square loop materials on top of optically thick silver and copper reflectors, respectively. We show that in general an enhancement of the polar Kerr rotation angle θK occurs at photon energies where the optical constants n and k of the reflector have low values. The enhancement factor depends on the thickness of the magnetic layer and on the relative magnitude of the optical constants of both layers. The reflectivity of these bilayer structures is only slightly reduced compared to the bulk magneto-optical medium.


Related Articles

  • Simultaneous observation of the smoke signals during the growth of bcc Fe on the Ag(100) surface. Suzuki, Y.; Kikuchi, H.; Katayama, T.; Yoshida, S. // Journal of Applied Physics;5/1/1990, Vol. 67 Issue 9, p5394 

    Presents a study of the surface magneto-optic Kerr effect signals during the epitaxial growth of iron on silver surface. Relationship between growth kinetics and magnetism; Experimental details; Results.

  • The magneto-optical Kerr effect of trilayer. Zhou, S. M.; Lu, M.; Zhang, H. Y.; Zhai, H. R. // Journal of Applied Physics;4/15/1992, Vol. 71 Issue 8, p3950 

    Deals with a study which measured and calculated the magneto-optical polar Kerr rotation spectra of trilayers iron/gold/copper, iron/copper/gold, iron/silver/copper and iron/copper/silver. Experimental procedures; Results; Intrepretation of the results.

  • Nonlinear Properties of Composites Based on Dielectric Layers Containing Copper and Silver Nanoparticles. Ganeev, R.A.; Ryasnyanskii, A.I.; Stepanov, A.L.; Kondirov, M.K.; Usmanov, T. // Optics & Spectroscopy;Dec2003, Vol. 95 Issue 6, p967 

    Nonlinear optical characteristics of copper and silver nanoparticles in glass host matrices are studied by the Z-scan method at the wavelength of a Nd:YAG laser (λ = 1064 nm) in a field of picosecond pulses. It is found that the third-order nonlinear susceptibility is more pronounced in...

  • Perpendicular magnetic anisotropy and magneto-optical Kerr effect of vapor-deposited Co/Pt-layered structures. Zeper, W. B.; Greidanus, F. J. A. M.; Carcia, P. F.; Fincher, C. R. // Journal of Applied Physics;6/15/1989, Vol. 65 Issue 12, p4971 

    Presents a study which examined the perpendicular magnetic anisotropy and magneto-optical Kerr effect of vapor-deposited cobalt/platinum-layered structures. Interface contribution to the anisotropy; Magneto-optical polar Kerr effect of these multilayers; Discussion.

  • Out-of-plane exchange coupling between epitaxial Ni (50 Ã…) and NiO (600 Ã…) bilayers. Liu, Z. Y.; Adenwalla, S. // Journal of Applied Physics;2/15/2003, Vol. 93 Issue 4, p2091 

    We have investigated the exchange coupling between an epitaxial Ni (50 Ã…) film with an out-of-plane magnetic easy axis and a NiO (600 Ã…) film by polar magneto-optic Kerr-effect measurements. The temperature dependences of exchange field H[sub E], for both as-deposited and field-cooled...

  • Design and performance of magneto-optic enhanced Co/Pt-based trilayers having zero Kerr ellipticity. Atkinson, R.; Grundy, P. J.; Hanratty, C. M.; Pollard, R. J.; Salter, I. W. // Journal of Applied Physics;5/15/1994, Vol. 75 Issue 10, p6861 

    Presents information on a study that outlined the design philosophy and objectives for producing phase-optimized trilayer structures for magneto-optic enhancement of the polar Kerr effect. Experimental procedure; Theoretical results; Conclusion.

  • Surface magneto-optic Kerr effect. Qiu, Z. Q.; Qiu, Z.Q.; Bader, S. D.; Bader, S.D. // Review of Scientific Instruments;Mar2000, Vol. 71 Issue 3 

    The surface magneto-optic Kerr effect (SMOKE) has significantly impacted research on magnetic thin films. This is due to its sensitivity, local probing nature, and experimental simplicity. The polar and longitudinal Kerr effects are characterized by a complex rotation of the plane of...

  • Three-configurational surface magneto-optical Kerr effect measurement system for an ultrahigh vacuum in situ study of ultrathin magnetic films. Lee, J.-W.; Jeong, J.-R.; Jeong, J.R.; Kim, D.-H.; Ahn, J. S.; Ahn, J.S.; Kim, J.; Shin, S.-C. // Review of Scientific Instruments;Oct2000, Vol. 71 Issue 10 

    We have constructed a three-configurational surface magneto-optical Kerr effect system, which provides the simultaneous measurements of the "polar," "longitudinal," and "transverse" Kerr hysteresis loops at the position where deposition is carried out in an ultrahigh vacuum growth chamber. The...

  • The effect of transition from a crystalline to amorphous structure on the magneto-optical Kerr... Cai, J.H.; Gu, G. // Journal of Applied Physics;5/1/1999, Vol. 85 Issue 9, p6797 

    Focuses on a study concerning the structure, optical constant effect, and magneto-optical Kerr rotation in iron-cobalt-silicon films. Experimental details; Details on Kerr rotation spectra; Conclusions.


Read the Article


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

Try another library?
Sign out of this library

Other Topics