Optical sensing of magnetic field based on magnetorefractive effect in manganites

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F09%3A00021793" target="_blank" >RIV/61989100:27350/09:00021793 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Optical sensing of magnetic field based on magnetorefractive effect in manganites
Original language description
We have investigated the transverse magneto-optical Kerr effect (TMOKE) in thin films of ferromagnetic manganites (La2/3Sr1/3MnO3, La2/3Ca1/3MnO3) with visible light. In addition to the standard transverse MO Kerr effect - which is proportional to the magnetization component perpendicular to the plane of light incidence - we have observed a strong even contribution roughly proportional to the absolute value of applied magnetic field. It is well observed near the Curie temperature. This contribution is not the ordinary quadratic magneto-optical effect it but is related to the magnetorefractive effect (MRE) - the optical equivalent of magnetoresistance - which give rise a significant change of reflectivity with the applied magnetic field. This magnetorefractive effect can exceed more than ten times the linear magneto-optical effect (MOE).
Czech name
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Czech description
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Project
<a href="/en/project/KAN400100653" target="_blank" >KAN400100653: Self-organized magnetic nanostructures</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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