Magneto-optical activity of Ag at the plasma frequency |
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Authors: | E Huber E E Marinero |
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Institution: | (1) IBM Almaden Research Center, 650 Harry Road, 95120-6099 San Jose, CA, USA |
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Abstract: | Kerr activity is observed in pure Ag films in the vicinity of the plasma resonance (3.85 eV) when subjected to a strong external magnetic field. This inherent magneto-optical behaviour of Ag in a narrow wavelength range (0.12 eV) around the plasma resonance is explained utilizing the classical Lorentz-Drude model for the off-diagonal elements of the dielectric function. This activity is a consequence of a combined effect of the weakly damped free electron system and the sharp onset ofd-band transitions. The possibility of enhancing the Kerr activity of amorphous TbFeCo alloys by Ag overlayers is also investigated. |
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Keywords: | 78 20 LS |
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