In this paper, the growth of ZnO/MgZnO composite structures with a larger number of periods by pulsed laser deposition
is presented. The structural and physical properties are quantitatively characterized by field-emission scanning electron
microscopy, transmission electronic microscopy, X-ray diffraction, and photoluminescence. It is demonstrated that the
quantum confinement effect has been observed from the composite structures at room temperature. The applications of
this unique ZnO/MgZnO composite structure are also discussed.
Bismuth Iron Gallium Garnet (BI3Fe5-xGaxO12, BIGG) has been synthesized by pulsed laser deposition method and their comprehensive characterizations are reported. X-ray diffraction analyses have proved that the BIGG films are of good epitaxial quality. Faraday experiments verify the BIGG's high Faraday rotation. BIGG film is more transparent than Bismuth Iron Garnet film especially at wavelengths shorter than 550nm. Figure of merit of BIGG films θF/-log (T)are greatly improved than that of original BIG films. High speed pulse response experiments of our BIGG films have reached 5ns.
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