Magneto optical kerr effect pdf

Magnetooptical kerr effect of ndfe films and ndfecual bilayers. Cahill, jun liu, judith kimling, johannes kimling, department of materials science and engineering. Timeresolved magnetooptical kerr effect for studies of. Pdf magnetooptical kerr effect in nizn ferrite films of. Reflection mode the second category of magneto optic effects deals with reflected light from the surface of a magnetized material. Experimentally it will be shown that the magnetooptic kerr effect moke hysteresis loops recorded for diffracted beams can be quite different from those. We explore the commonly used classification scheme for the magnetooptical kerr effect moke, which essentially utilizes a dual definition based simultaneously on the cartesian coordinate. Type of investigations polarized light x nonpolarized light, re ection x transmission, di erent properties for di erent polarizations. Pdf what is the longitudinal magnetooptical kerr effect. Room temperature magneto optic kerr effect measurements in longitudinal and polar configuration indicate the oblique magnetic anisotropy. In physics the magnetooptic kerr effect moke or the surface magnetooptic kerr effect. Magnetooptical kerr measurements in high magnetic fields.

Several samples including single films and multilayers will be investigated with respect to their magnetic properties. Magnetooptical kerr effect in nizn ferrite films of variable thickness. This effect is usually found in colloidal solutions of magnetic particles and as m might be large 0cm is too. Magnetooptic effect, faraday effect, kerr effect, polarization. Measurement of the resonant magnetooptical kerr effect. The structural and magnetic measurements of the prepared films are reported in the present work.

It is the equivalent of the kerr electro optic effect. Earlier approaches for increasing the mo activity of the systems were mostly based on the excitation of surface plasmons, where the near field enhancement associated with the surface plasmons leads to substantial enhancement of. Unravelling the role of natural weak value amplification. Pdf theory of the magnetooptical kerr effect in ferromagnetic. Magneto optical kerr effect microscopy in our capstone project we built a magnetooptical kerr effect microscope which will be used in development and characterization of magnetic materials and devices in the center of microwave magnetic materials and integrated circuits at northeastern university. The discovery of magneto optical effects evoked a new thought that the nature of light was an electromagnetic entity, and played a central role in the contribution of the development of maxwells electromagnetic theory. Surface plasmoninduced enhancement of the magnetooptical kerr. The discovery of magnetooptical effects evoked a new thought that the nature of light was an electromagnetic entity, and played a central role in the contribution of.

Magnetism, light and the magneto optic kerr effect joseph copland. Magnetooptical kerr measurements in high magnetic fields and at low temperatures. Moke microscope magnetooptical kerr effect microscope pdf. Polycrystalline gadolinium iron garnet gd 3 fe 5 o 3 film is prepared by spincoating technique and subsequent annealing. Mo phenomenon in this particular geometryis therefore called the polar magneto optical.

Abstract magneto optical kerr effect and magnetic circular dichroism in ferromagnetic inmnasgasb heterostructures by jigang wang this thesis describes a magneto optical kerr effect moke and. Noncollinear antiferromagnet mn3sn is a functional material that exhibits the magneto optical kerr effect moke as well as the anomalous hall effect, arising from the nonvanishing berry curvature. Magneto optical kerr e ect moke photonphoton spectroscopies absorption i. Pdf magnetooptical kerr effect of ndfe films and ndfe. Magnetism, light and the magneto optic kerr effect youtube. Timeresolved magnetooptical kerr effect for studies of phonon thermal transport david g. Type of investigations polarized light x nonpolarized light.