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Back Cover (Phys. Status Solidi A 6/2010)
Author(s) -
Wang K.,
Yamaguchi T.,
Takeda A.,
Kimura T.,
Kawashima K.,
Araki T.,
Nanishi Y.
Publication year - 2010
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201090015
Subject(s) - anisotropy , orthorhombic crystal system , polarization (electrochemistry) , condensed matter physics , perpendicular , photoluminescence , diffraction , optics , lattice (music) , materials science , physics , chemistry , geometry , mathematics , acoustics
In the article by Ke Wang et al. ( p. 1356 ), strong optical polarization anisotropy has been revealed for non‐polar InN epilayers ( a ‐plane and m‐plane) in photoluminescence (PL) and absorption experiments. The PL intensity for polarization perpendicular to the c‐axis ( E ⟂) is up to four times that of polarization parallel to the c‐axis ( E ∥c) for a ‐plane InN, and this ratio is up to seven for m ‐plane InN. The absorption edges of a ‐plane samples for the two polarizations are separated by 19 meV, with E∥c at the higher energy side. Furthermore, the strain has been analyzed using X‐ray diffraction measurements, taking the orthorhombic distortion of the lattice into account. Then the experimental results have been compared with a theoretical calculation of the influence of anisotropic biaxial in‐plane strain on the transition energies and relative oscillator strength.