Micro‐Raman study of columnar GaAs nanostructures | Zendy

Prunici Pavel | Zendy; Irmer Gert | Zendy; Monecke Jochen | Zendy; Sirbu Lilian | Zendy; Tiginyanu Ion | Zendy

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Micro‐Raman study of columnar GaAs nanostructures

Author(s) -

Prunici Pavel,

Irmer Gert,

Monecke Jochen,

Sirbu Lilian,

Tiginyanu Ion

Publication year - 2005

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.200461183

Subject(s) - raman spectroscopy , dielectric function , raman scattering , plasmon , phonon , nanostructure , dielectric , materials science , condensed matter physics , scattering , molecular physics , optics , optoelectronics , nanotechnology , chemistry , physics

Micro‐Raman scattering spectra of bulk and porous GaAs and of individual nanocolumns were studied. The GaAs nanocolumns have radii of 50–100 nm and lengths between 5 and 25 µm. The experimental data are compared with the results of calculations predicting coupled LO‐phonon–plasmon and coupled Fröhlich‐plasmon modes using a dielectric function derived on the basis of an appropriate two‐dimensional effective medium theory. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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