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Intercalation and anisotropy of optical absorption in MoRe 0.005 Se 1.995 single crystals
Author(s) -
Vora Mihir M.,
Vora Aditya M.
Publication year - 2007
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200610794
Subject(s) - anisotropy , optical anisotropy , absorption (acoustics) , intercalation (chemistry) , phonon , crystal (programming language) , materials science , single crystal , band gap , crystallography , chemistry , optics , molecular physics , condensed matter physics , chemical physics , optoelectronics , physics , inorganic chemistry , computer science , composite material , programming language
Abstract The optical energy gap of MoRe 0.005 Se 1.995 single crystal has been measured at room temperature near the fundamental absorption method. The incident light was polarized along c‐axis of the crystals. Two and three dimensional models are adopted for generating the results. Direct as well as indirect transitions are involved in the absorption process. The indirect transition was found to be allowed with two phonons involved in the process. The three dimensional model could be used to describe the optical properties of the single crystal of MoRe 0.005 Se 1.995 . Also, the optical energy gaps depend upon the amount of the intercalating Re material, which show the anisotropy of the chemical bonds. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)