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Infrared Absorption of AlN Single Crystals in the Two‐Phonon Region
Author(s) -
Pastrňák J.,
Hejda B.
Publication year - 1969
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19690350246
Subject(s) - wurtzite crystal structure , phonon , absorption (acoustics) , infrared , polarization (electrochemistry) , materials science , molecular physics , optics , condensed matter physics , chemistry , physics , zinc , metallurgy , composite material
Two‐phonon infrared absorption was measured on AlN single crystals in polarized light. Contrary to previous results obtained from other materials with wurtzite structure, the full polarization of some absorption bands was found. The results are interpreted with the help of the fundamental frequencies of the BZE 738, 668, 658, 627, 507, 444, and 413 cm −1 .