Abstract
Polarized Raman and fourier-transform infrared (FTIR) measurements have been made on a single crystal of CuO. Group theory predicts nine vibrations of which three (A g , 2B g ) are Raman-active and six (3A u , 3B u ) are infrared-active. We have observed three Raman modes at 296 (A g ), 346 (B 1 g ) and 636 (B 2 g ) cm−1. We have also observed six infrared modes at 146 (B 3 u ), 164 (A 2 u ), 355 (A 3 u ), 480 (B 1 u ), 542 (?) and 603 (B 2 u ) cm−1. The normal frequencies and eigenvectors have been calculated using Wilson’s FG method; a good fit between theory and experiment has been obtained.
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CuO single crystals were obtained from two sources: (i) Superconics, St. Paul, MN, USA and (ii) Dr Terrell Vanderah, Naval Weapon Center, China Lake, CA, USA.
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Guha, S., Peebles, D. & Terence Wieting, J. Raman and infrared studies of cupric oxide. Bull. Mater. Sci. 14, 539–543 (1991). https://doi.org/10.1007/BF02744682
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DOI: https://doi.org/10.1007/BF02744682