Double-Layered Polycrystalline Iron Garnet Structure of Bi_3Fe_5O_<12> and Y_3Fe_5O_<12> grown on SiO_2 substrates by pulsed laser deposition(MORIS 2007 Workshop on Thermal & Optical Magneitc Materials and Devices)

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概要

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• Iron Garnet single crystals like Bi_3Fe_5O_<12> are important ceramic systems with extensive applications in structural ceramics and optoelectronics. Currently, it is desirable to integrate such macroscopic components on a single chip (e.g. Si, SiO_2, ...) as in the case of microelectronics (integrated optics). High quality magneto-optical active garnet films with high Faraday rotation are also needed for magneto-optical imaging. In our present work we studied the integration of Bi_3Fe_5O_<12> on different SiO_2 substrates using the pulsed laser deposition method. Therefore we deposited a Y_3Fe_5O_<12> buffer first which was optimized in a post-annealing step above 900 ℃ in order to form a polycrystalline garnet phase, which is needed for further Bi_3Fe_5O_<12> growth. We measured the Faraday rotation of the films and intensely studied them with x-ray diffraction, Rutherford Backscattering Spectroscopy, Environmental Scanning Electron Microscopy, X-ray photoelectron spectroscopy and High-Resolution Transmission Electron Microscopy. The attained Faraday rotation can be compared with epitaxial Bi_3Fe_5O_12 films grown on Gd_3Ga_5O_<12> substrates. Finally we present an easy solution to generate linear polarized light on the substrate by an organic light emitting diode, which can be coupled into to the garnet thin film.

• 社団法人日本磁気学会の論文
• 2008-03-01

著者

• Korner T.

  University Of Augsburg Epiv Epii

• Knoll M.

  University Of Augsburg Epiv Epii

• Heinrich A.

  University of Augsburg, EPIV EPII

• Simon J.

  University of Bonn, Institut fur Anorganische Chemie

• Mader W.

  University of Bonn, Institut fur Anorganische Chemie

• Kalytta A.

  University of Augsburg, EPIV EPII

• Horn S.

  University of Augsburg, EPIV EPII

• Stritzker B.

  University of Augsburg, EPIV EPII

• Heinrich A.

  University Of Augsburg Epiv Epii

• Horn S.

  University Of Augsburg Epiv Epii

• Stritzker B.

  University Of Augsburg Epiv Epii

• Mader W.

  University Of Bonn Institut Fur Anorganische Chemie

• Kalytta A.

  University Of Augsburg Epiv Epii

関連論文

• Double-Layered Polycrystalline Iron Garnet Structure of Bi_3Fe_5O_ and Y_3Fe_5O_ grown on SiO_2 substrates by pulsed laser deposition(MORIS 2007 Workshop on Thermal & Optical Magneitc Materials and Devices)
• Pulsed Laser Deposition and Growth Studies of Bi_3Fe_5O_ on Gd_3Ga_5O_ and SiO_2(Selected papers from MORIS 2006 Workshop on Thermal & Optical Magnetic Materials and Devices)

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