The optical properties of the spinel LiTi2O4 thin film
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School of Information Science and Engineering,Shandong University,School of Information Science and Engineering,Shandong University,School of Information Science and Engineering,Shandong University,School of Information Science and Engineering,Shandong University,School of Information Science and Engineering,Shandong University,National Lab for Superconductivity,Institute of Physics,Chinese Academy of Sciences,National Lab for Superconductivity,Institute of Physics,Chinese Academy of Sciences,School of Information Science and Engineering,Shandong University

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    Abstract:

    Transition-metal oxides LiTi2O4 thin film was epitaxially grown on MgAl2O4 (001) substrate by pulsed-laser deposition. The X-ray diffraction indicates that the film was successfully grown with high quality and single cubic spinel phase. The Raman-active phonons were studied by Raman spectroscopy. Using spectroscopic ellipsometry, we also determine the refractive index and extinction coefficient of the film in visible-near-infrared region. Band structure and density of states (DOS) of LiTi2O4 were carried out by first-principles calculations. The theoretical calculations are consistent with the experimental results, and the optical constants is well identified by the theoretical band structure.

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ZHAO Ming-Lin, LIU Yu-Xiang, LIAN Jie, SHI Yu-Jun, SONG Hao-Nan, JIA Yan-Li, JIN Kui, YANG Xiu-Lun. The optical properties of the spinel LiTi2O4 thin film[J]. Journal of Infrared and Millimeter Waves,2017,36(4):460~465

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History
  • Received:December 26,2016
  • Revised:February 21,2017
  • Adopted:February 27,2017
  • Online: August 29,2017
  • Published: