Left-handed behavior of strontium-doped lanthanum manganite in the millimeter waveband

Left-handed behavior of strontium-doped lanthanum manganite was revealed in the millimeter waveband. The bulk specimen of La1−xSrxMnO3, was used as a boundary medium for one-dimensional photonic crystal. In the absence of magnetic field known Tamm peak appears in the forbidden zone of photonic cryst...

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Bibliographic Details
Published in:Applied physics letters 2009-08, Vol.95 (8)
Main Authors: Khodzitsky, M. K., Kalmykova, T. V., Tarapov, S. I., Belozorov, D. P., Pogorily, A. M., Tovstolytkin, A. I., Belous, A. G., Solopan, S. A.
Format: Article
Language:English
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Summary:Left-handed behavior of strontium-doped lanthanum manganite was revealed in the millimeter waveband. The bulk specimen of La1−xSrxMnO3, was used as a boundary medium for one-dimensional photonic crystal. In the absence of magnetic field known Tamm peak appears in the forbidden zone of photonic crystal indicating that manganite is a single negative medium (negative permittivity). In the presence of external magnetic field somewhat above frequency of ferromagnetic resonance the additional (field sensitive) transparency peak appears in photonic crystal forbidden zone, indicating that manganite becomes double negative medium (negative permittivity and permeability). Model theoretical calculations corroborate the experimental findings.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3204004