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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-24 10:03 |
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Conference: Bucharest University Faculty of Physics 2011 Meeting
Section: Educational Physics
Title:
A Didactical Perspective on the Application of the Magneto-Optical Kerr Effect in Versatile Studies of Modern Magnetic Materials
Authors:
Cristina Kuncser, A.Kuncser and S.Antohe
Affiliation:
University of Bucharest, Faculty of Physics, Atomistilor Street 405, P.O. Box MG 11, 077125, Bucharest-Magurele, Romania
E-mail
ckuncser@yahoo.com
Keywords:
physics education, MOKE magnetometry, magnetic thin films
Abstract:
The magneto-optical Kerr effect (MOKE) is a versatile and powerful tool for the magnetic characterization of very thin films and multilayers with important technological applications. The paper reports on the main advantages of the MOKE magnetometry as compared to conventional magnetometry and offers a didactical perspective on the origin of the magneto-optic effects, by starting from the classical explanation of the Faraday effect. The microscopic origin is also mentioned as well as a brief description of the macroscopic formalism. Different experimental configurations are discussed. Finally, the working principles and a detailed explanation of a Faraday cell based MOKE magnetometer is presented. The performances and the capabilities of the mentioned device are exemplified in case of different magnetic thin films and multilayers with transition metals.
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