Micro-Raman study of exfoliated Bi2Sr2CaCu2O8+δ single crystals with different 
thicknesses

Wang, X.; You, L. X.; Xie, X. M.; Lin, C. T.; Jiang, M. H.

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Micro-Raman study of exfoliated Bi₂Sr₂CaCu₂O_8+δ single crystals with different thicknesses

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Wang, X.
Scientific Facility Crystal Growth (Masahiko Isobe), Max Planck Institute for Solid State Research, Max Planck Society;

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Lin, C. T.
Scientific Facility Crystal Growth (Masahiko Isobe), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Wang, X., You, L. X., Xie, X. M., Lin, C. T., & Jiang, M. H. (2012). Micro-Raman study of exfoliated Bi₂Sr₂CaCu₂O_8+δ single crystals with different thicknesses. Journal of Raman Spectroscopy, 43(7), 949-953.

Cite as: https://hdl.handle.net/21.11116/0000-000E-C36B-E

Abstract

Exfoliated Bi2Sr2CaCu2O8+d (Bi-2212) single crystals were prepared by micromechanical cleavage of bulk Bi-2212 single crystals on SiO2/Si substrates. Room temperature micro-Raman spectra were collected using a 532-nm laser source. The evolutions of the spectra of A1g (Bi), A1g (Sr), and A1g (OBi) Raman modes with different thicknesses of the samples were studied. The refractive index of Bi-2212 single crystal was obtained by studying the intensity evolutions based on the interference effect. The observed wavenumber shifts of the A1g (Bi), A1g (Sr), and A1g (OBi) modes were analyzed. Copyright (c) 2011 John Wiley & Sons, Ltd.