A low frequency Raman-active vibration of hexagonal boron nitride |
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| Authors: | T Kuzuba K Era T Ishii T Sato |
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| Institution: | National Institute for Researches in Inorganic Materials, Kurakake, Sakura-Mura, Niihari-gun, Ibaraki, 300-31 Japan |
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| Abstract: | Raman spectra of single crystals and powder of hexagonal boron nitride have been measured at room temperature. Two Raman lines due to phonons of 52.5 and 1366 cm-1 were observed. The 52.5 cm-1 line, observed for the first time, has been attributed to the shear-type rigid layer mode of the crystal. The force constants related with the vibrations of these modes and their anisotropy are compared with those of graphite. |
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