dc.contributor.advisor | Gibson, Ursula | nb_NO |
dc.contributor.author | Tveten, Erlend Grytli | nb_NO |
dc.date.accessioned | 2014-12-19T13:16:51Z | |
dc.date.available | 2014-12-19T13:16:51Z | |
dc.date.created | 2011-08-24 | nb_NO |
dc.date.issued | 2011 | nb_NO |
dc.identifier | 436568 | nb_NO |
dc.identifier | ntnudaim:5895 | nb_NO |
dc.identifier.uri | http://hdl.handle.net/11250/246462 | |
dc.description.abstract | The effect of optical coatings on the longitudinal magneto-optic Kerr effect response from 10 nm thin films of permalloy (Ni84Fe16) has been studied. Enhancement of the magneto-optic Kerr effect signal contrast of a factor 1.76 has been observed for P- polarized incident light on a trilayer configuration of aluminium, magnesium fluoride, and permalloy. A quadrilayer structure where the trilayer is overcoated with zinc sulphide enhances the signal contrast by a factor 4.05 for P-polarized light. The enhancement is also observed for S-polarized light, and is shown to be reproducible using nickel as the magnetic material and gold instead of aluminium.The experimental data are compared to a simplified theoretical model where the electric field components are calculated using a 4 x 4 matrix algorithm. The model is found to be inadequate in predicting the longitudinal magneto-optic Kerr effect response from complex multilayer structures. This is believed to be due to a simplification in the model disregarding the phase factors of the different components reflected off the multilayered samples. | nb_NO |
dc.language | eng | nb_NO |
dc.publisher | Institutt for fysikk | nb_NO |
dc.subject | ntnudaim:5895 | no_NO |
dc.subject | MTNANO Nanoteknologi | no_NO |
dc.subject | Nanoelektronikk | no_NO |
dc.title | Optical coatings for enhancement of the longitudinal Magneto-optic Kerr Effect from magnetic ultra-thin films | nb_NO |
dc.type | Master thesis | nb_NO |
dc.source.pagenumber | 109 | nb_NO |
dc.contributor.department | Norges teknisk-naturvitenskapelige universitet, Fakultet for naturvitenskap og teknologi, Institutt for fysikk | nb_NO |