Der Zusammenhang zwischen dem magnetooptischen Kerr- und Faraday-Effekt und die optischen Konstanten von dicken Aufdampfschichten aus Eisen, Kobalt und Nickel
| Autor: | Johannes Jaumann, Werner Breuer |
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| Rok vydání: | 1963 |
| Předmět: | |
| Zdroj: | Zeitschrift f�r Physik. 173:117-134 |
| ISSN: | 1434-601X 1434-6001 |
| DOI: | 10.1007/bf01377888 |
| Popis: | The magnetical rotation of the plane of polarisation and the ellipticity of the reflected and transmitted light through magnetically saturated, evaporated layers of iron, cobalt and nickel (30 to 100 mμ) are dependent one another according to the phenomenological theory of W.Voigt. The four measured magnetooptical angles are however independent each other. By comparison of other physical properties, except the magnetooptical ones, (f. e. magnetical saturation, optical absorption) measured respectively with transmitted and with reflected light, we try to prove, that the layers are homogenous at least near the glass-side. The linear increase of Faraday-rotation and optical absorption with the thickness of the layer supports this assumption. Then the independence can only be explaned by a magnetooptical term in the second equation of Maxwell also (precession of spin). The knowledge of the optical constants ist necessary for the comparison of magnetooptical ones. They are find out by measurements of intensity only, using the transmitted light and the reflected light at both sides of the layer. By supernumerarykinds of determination the foult is estimated. The method of Drude is adapted to measurements of intensity and then applied on the glasside too. The results on this side agree with those of transmitted light, the air-side differs a little. |
| Databáze: | OpenAIRE |
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