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21 January 2025

» arxiv » cond-mat/0701158

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Determination of the infrared complex magneto-conductivity tensor in itinerant ferromagnets from Faraday and Kerr measurements
M.-H. Kim ; G. Acbas ; M.-H. Yang ; I. Ohkubo ; H. Christen ; D. Mandrus ; M.A. Scarpulla ; O.D. Dubon ; Z. Schlesinger ; P. Khalifah ; J. Cerne ;
Date:	9 Jan 2007
Subject:	Strongly Correlated Electrons; Materials Science
Abstract:	We present measurement and analysis techniques that allow the complex magneto-conductivity tensor to be determined from measurements of the complex Faraday (theta_F) and Kerr (theta_K) angles. theta_F and theta_K are measured in a Ga_(1-x)Mn_xAs and SrRuO_3 films. Thick film transmission and reflection equations are used to convert the complex theta_F and theta_K into the complex longitudinal conductivity sigma_xx and the complex transverse (Hall) conductivity sigma_xy. The resulting sigma_xx is compared to the values obtained from conventional transmittance and reflectance measurements, as well as the results from Kramers-Kronig analysis of reflectance measurements on similar films.
Source:	arXiv, cond-mat/0701158
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