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Журнал с 01.12.2015 допущен ВАК для публикации основных результатов диссертаций как издание, входящее в международные реферативные базы систем цитирования (Web Science, Scopus) (см. Vak.ed.gov.ru Перечень журналов МБД 16.03.2018г)

Аннотации (02.2016) : DETERMINATION OF MAGNETO-OPTICAL CONSTANTS BY MEASURING KERR ROTATION ANGLES OF MAGNETIC FILMS WITH DIFFERENT SAMPLE STRUCTURES

DETERMINATION OF MAGNETO-OPTICAL CONSTANTS BY MEASURING KERR ROTATION ANGLES OF MAGNETIC FILMS WITH DIFFERENT SAMPLE STRUCTURES

 

© 2016.  R. T. Zheng; X. W. Xu; X. A. Liang; Z. A. Lum

Data Storage Institute, A*STAR, Singapore

Е-mail: ZHENG_Ruitao@dsi.a-star.edu.sg

A new data analysis method is proposed to determine magneto-optical (MO) constants by measuring Kerr rotation angles on the samples with different multilayer film structures. The MO film in the multilayer samples is protected by a SiO2 film with two different thicknesses. An existing algorithm is used to calculate the Kerr rotation angle based on the MO theory developed in early 1990's. A new error function is defined to evaluate the distance from calculated Kerr angles to measured ones. The proposed method is developed based on Staged Continuous Tabu Search (SCTS) algorithm to retrieve the MO constant by searching the minimum of the error function. The uniqueness and accuracy of the MO constant determined by this method are discussed, and its relative error introduced by the measurement error of Kerr rotation angles is also analyzed. Without measuring the ellipticity, the proposed method is relatively simple and can be applied to determine the MO constants for the samples with two or three layers of films.

Keywords: magneto-optical constant; Kerr rotation angle; multilayer film structure; data analysis.

Коды OCIS: 310.3915, 310.5448, 310.6845, 310.6860, 310.5696

Submitted 17.04.2015.

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