Longitudinal magneto-optic kerr effect system - kerrmapper s300 and v300 the kerrmapper family of tools utilizes the longitudinal magneto-optical kerr effect (moke) to characterize the magnetic properties of magnetic multi-layer wafers for data storage, mram, and other magnetic sensors. The polar magneto-optical kerr effect was measured at room temperature inthe energy range 05-5ev it was found that the kerr intensity below 15ev is due to transitions. The magneto-optic kerr effect (moke, also called simply the kerr effect) is a physical phenomenon that describes an interaction between polarized visible light and magnetized materials. Optical coatings for enhancement of the longitudinal magneto-optic kerr e ect from magnetic ultra-thin lms master's thesis by erlend grytli tveten. In physics the magneto-optic kerr effect (moke) or the surface magneto-optic kerr effect (smoke) is one of the magneto-optic effectsit describes the changes to light reflected from a magnetized surface.
The magneto-optical kerr effect (moke) is a powerful technique to investigate the magnetization behaviour in magnetic nanostructures we describe the design of a polar moke instrument for investigating the magnetization variation in moke signal observed in the exciting regime where the size of the magnetic nanostructures is around 20-350 nm. This document contains a student thesis (bachelor's or master's), as authored by a student at eindhoven university of technology the magneto-optical kerr effect. Abstract magneto-optical kerr effect and magnetic circular dichroism in ferromagnetic inmnas/gasb heterostructures by jigang wang this thesis describes a magneto-optical kerr effect (moke) and. Photoelastic modulators magneto-optic kerr effect application note technology for polarization measurement 1 by dr theodore c oakberg the magneto-optic kerr effect (moke) is the study of the.
Over the last decades, the magneto-optical kerr effect (moke) has gained widespread popularity as a characterization tool for the study of magnetism and magnetic materials [1, 2. Abstract the magneto-optic kerr effect (moke) is used to investigate novel magnetic properties of epitaxial fe films grown on ag(100) variable parameters of the study include temperature, film thickness, strength of the applied magnetic field (parallel to the surface) and photon energy. The kerr rotation and kerr ellipticity of thin films can be measured using an ac magneto-optic kerr effect (ac-moke) system the longitudinal moke measurements were taken for a series of co2mnsixal1-x thin films with values of x= 000, 025, 050, 075, 100. This magneto-optical kerr effect (moke) has been intensively studied in avariety of ferro- and ferrimagnetic materialsbecause it pro- vides a powerful probe for electronic and magnetic properties 2,3 as well as for various appli.
Surface magneto-optic kerr effect figure 1: transformation by kerr effect of a wave polarized linearly into an elliptic wave after reflexion on a magnetized medium the kerr effect under ultra vacuum (smoke: surface magneto-optic kerr effect) results from the interaction between an electromagnetic wave polarized linearly and a magnetized medium. The work presented in this thesis describes the investigation of the magneto-optic kerr effect (moke) and the anomalous hall effect (ahe) techniques, used in the characterisation of bpm samples these samples were produced as part of this work using a customised subtractive fabrication process. Kerr electro-optic effect the kerr electro-optic effect, or dc kerr effect, is the special case in which a slowly varying external electric field is applied by, for instance, a voltage on electrodes across the sample material. The magneto-optic kerr effect (moke) magnetometry, which employs the dependence of the characteristics of the light reflected on the sample surface (intensity and phase), on the sample magnetization. Rise to magneto-optical (mo) effects the faraday effect, observed in 1843 in a piece of glass placed between the poles of a magnet, was the first of the magnetooptical effects to be discovered [1.
The purpose of this article is to stimulate interest in the power of the surface magneto-optic kerr effect (smoke) technique to address a range of contemporary issues associated with the physics. The application of the kerr effect to study the surface magnetism was introduced by moog and bader (1985) along with the acronym smoke to denote the surface magneto-optic kerr effect since then smoke has emerged as a premier surface magnetism technique of choice in many laboratories worldwide. Efﬁciently if the magneto-optic effect is measured with a sagnac interferometer4-10 in this case an optical beam and its time-reversed counterpart traverse an identical loop-wise path including reﬂection from a magnetized sample but in the opposite direction.
Polar magneto-optical kerr effect (moke) spectroscopy in the energy range from 175 ev to 5 ev at different magnetic field strength was applied to study ni nanostructures formed on rubrene nanoislands. 3 magneto-optic kerr effect (moke) 18 elements, o and c, with respect to the s and p directions these are perpendicular and parallel to the optical plane of the incident light on the sample s p is fixed at an angle α = π/4, whereas a. Magnetic thin films by the magneto-optical kerr effect (moke) a thesis submitted in partial fulfillment of the requirement for the degree of bachelor of science in physics from the college of william and mary in virginia. Magneto-optical kerr effect (moke) measurements were performed on a monolayer of oleic-acid-modified fe 3 o 4 nanocrystals chemically adsorbed on a catechol-group-functionalized si substrate.
Lumerical home applications other applications magneto-optical kerr effect previous next in this example, we model the magneto-optic kerr effect (moke), which describes the changes to light reflected from a magnetized surface. Magneto-optical effect and applications kerr effect june 27, 2014 13 the physical principles of magneto -optical recording. (a) illustration of the magneto-optical kerr effect in longitudinal geometry e and e ´ are the electric field vectors of the incident and normally reflected light beams, respectively. The magneto-optic kerr effect has been used for decades in magnetic analysis, and by combining this concept with a uhv chamber one obtains a surface sensitive method for characterizing magnetic properties of structures in the monolayer range.